Researcher basic information

• B. A. in International Relations, University of Shizuoka, Mar. 1995
• M. A. in Behavioral Science, Hokkaido University, Mar. 1997
• Ph. D. in Behavioral Science, Hokkaido University, Mar. 2001

• https://researchmap.jp/lalalarakko?lang=en

• https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201001053040154553
• https://lalalarakko.github.io

• 201001053040154553

• wisdom of crowds
• cultural evolution
• group decision making
• cooperation

• Humanities & Social Sciences, Social psychology, Evolutionary Behavioural Science

• Bachelor's degree program, School of Humanities and Human Sciences
• Master's degree program, Graduate School of Humanities and Human Sciences
• Doctoral (PhD) degree program, Graduate School of Humanities and Human Sciences

Research activity information

• Nov. 2023, The Japanese Psychological Association, Distinguished Excellent Presentation Award
  Emergence of word order rules via communication and cultural transmission: Experiemental investigation using iterate learning paradigm
  Seiya Nakata;Akari Ohira;Masanori Takezawa, Japan society
• 2022, Japanese Group Dynamics Association, Excellent Presentation Award
  Coevolution of norm-psychology and cooperation under exapted conformity
  Yuta Kido;Masanori Takezawa, Japan society
• 2021, Hokkaido University, Excellent teachers in the class questionnaire for the general education courses (2020)
  Masanori Takezawa, Others
• 2000, Prize for the best paper in 1999 from Japanese Group Dynamics Association (for "The effect of an unfair treatment in the resolusion of social dilemma, Japanese Journal of Experimental Social Psychology, 39, 30-40)
  Japan
• 2000, Prize for the best paper in 1999 from Japanese Cognitive Science Society (for “Ownership and sharing: Exploring social foundations of communal sharing norm by evolutionary game analysis”, Cognitive Studies, 6, 191-205.)
  Japan

• Empirical evidence for the spread of Cooperation through copying successful groups
  Yuta Kido; Masanori Takezawa
  Scientific Reports, 15, 22289, Springer Science and Business Media LLC, 01 Jul. 2025, [Peer-reviewed], [Last author, Corresponding author], [International Magazine]
  English, Scientific journal
• Examining the Possibility of Maladaptive Cultural Evolution through Oblique Transmission
  Chinatsu Sano; Masanori Takezawa
  Letters on Evolutionary Behavioral Science, 16, 1, 8, 13, 02 May 2025, [Peer-reviewed], [Last author]
  English, Scientific journal
• Exploring the role of adolescents in healthier, more sustainable family meals: A decision study on meat consumption
  Jutta Mata; Vanessa Knobl; Masanori Takezawa
  Appetite, 107916, 107916, Elsevier BV, Feb. 2025, [Peer-reviewed], ［Internationally co-authored］
  English, Scientific journal, 41651740
• Risk preference as an outcome of evolutionarily adaptive learning mechanisms: An evolutionary simulation under diverse risky environments
  Shogo Homma; Masanori Takezawa
  PLOS ONE, 19, 8, e0307991, 01 Aug. 2024, [Peer-reviewed], [Last author, Corresponding author]
  English, Scientific journal
• Coevolution of norm psychology and cooperation through exapted conformity
  Yuta Kido; Masanori Takezawa
  Evolutionary Human Sciences, 6, e35, 02 Feb. 2024, [Peer-reviewed], [Last author, Corresponding author], [International Magazine]
  English, Scientific journal
• Hierarchical structures emerge from the cultural transmission: an iterated learning experiment using a non-linguistic task
  Seiya Nakata; Masanori Takezawa
  Frontiers in Artificial Intelligence, 6, 1221329, 22 Dec. 2023, [Peer-reviewed], [Last author, Corresponding author], [International Magazine]
  English, Scientific journal, Human language is characterized by complex structural features, such as the hierarchical combination of words to form sentences. Although other animals use communication systems, empirical evidence of hierarchical structures is rare. Computational studies of language evolution have suggested that cultural transmission plays a key role in the emergence of structural features in human languages, including hierarchy. While the previous study demonstrated the emergence of hierarchical structures in non-linguistic systems, we argue that their laboratory study may have overestimated the role of cultural transmission because of a lack of appropriate controls and analyses. To directly test the effect of cultural transmission, we conducted an experiment with no cultural transmission as a control (individual condition) in addition to replicating the previous transmission experiment (transmission condition). Our study has added a quantitative analysis of the hierarchical depth. We found that sequences became more structured as the number of generations increased; however, those produced under the transmission condition were more structured than those under the individual condition. These findings suggest that cultural transmission plays an important role in the emergence of hierarchical structures, which cannot be explained by increased learnability alone. The emergence of complex structural properties in human culture, such as language, technology, and music, may have resulted from information transmission processes between different individuals. In conclusion, this study provides evidence of the crucial role of cultural transmission in the emergence of hierarchical structures in non-linguistic communication systems. Our results contribute to the ongoing debate on the origins of human language and the emergence of complex cultural artifacts. The results of this study have implications for the study of cultural evolution and the role of transmission in shaping the emergence of structural features across diverse domains.
• Conditions under which faithful cultural transmission through teaching promotes cumulative cultural evolution
  Seiya Nakata; Masanori Takezawa
  Scientific Reports, 13, 20986, Springer Science and Business Media LLC, 28 Nov. 2023, [Peer-reviewed], [Last author, Corresponding author], [International Magazine]
  English, Scientific journal, Abstract
  
  It has been argued that teaching promotes the accurate transmission of cultural traits and eventually leads to cumulative cultural evolution (CCE). However, previous studies have questioned this argument. In this study, we modified the action sequences model into a network exploring model with reinforcement learning to examine the conditions under which teaching promotes CCE. Our model incorporates a time trade-off between innovation and teaching. Simulations revealed that the positive influence of teaching on CCE depends on task difficulty. When the task was too difficult and advanced, such that it could not be accomplished through individual learning within a limited time, spending more time on teaching—even at the expense of time for innovation—contributed to CCE. On the contrary, the easier the task, the more time was spent on innovation than on teaching, which contributed to the improvement of performance. These findings suggest that teaching becomes more valuable as cultures become more complex. Therefore, humanity must have co-evolved a complex cumulative culture and teaching that supports cultural fidelity.
• Generalized morality culturally evolves as an adaptive heuristic in large social networks.
  Joshua Conrad Jackson; Jamin Halberstadt; Masanori Takezawa; Kongmeng Liew; Kristopher Smith; Coren Apicella; Kurt Gray
  Journal of Personality and Social Psychology, 125, 1207, 1238, American Psychological Association (APA), 21 Sep. 2023, [Peer-reviewed], ［Internationally co-authored］, [International Magazine]
  English, Scientific journal, Why do people assume that a generous person should also be honest? Why do we even use words like “moral” and “immoral”? We explore these questions with a new model of how people perceive moral character. We propose that people vary in the extent to which they perceive moral character as “localized” (varying along many contextually embedded dimensions) versus “generalized” (varying along a single dimension from morally bad to morally good). This variation might be partly the product of cultural evolutionary adaptations to different kinds of social networks. As networks grow larger, perceptions of generalized morality are increasingly valuable for predicting cooperation during partner selection, especially in novel contexts. Our studies show that social network size correlates with perceptions of generalized morality in United States and international samples (Study 1) and that East African hunter–gatherers with greater exposure outside their local region perceive morality as more generalized compared to those who have remained in their local region (Study 2). We support the adaptive value of generalized morality in large and unfamiliar social networks with an agent-based model (Study 3), and in experiments where we manipulate partner unfamiliarity (Study 4). Our final study shows that perceptions of morality have become more generalized over the last 200 years of English-language history, which suggests that it may be coevolving with rising social complexity and anonymity in the English-speaking world (Study 5). We discuss the implications of this theory for the cultural evolution of political systems, religion, and taxonomical theories of morality.
• Evolution of the Word Order Rules Through Communication and Cultural Transmission: An Iterated Learning Experiment
  Seiya Nakata; Akane Ohira; Masanori Takezawa
  Proceedings of the Joint Conference on Language Evolution (JCoLE), 542, 550, 2022, [Peer-reviewed], [Last author], [International Magazine]
  International conference proceedings
• Roles of cultural transmission in the emergence of hierarchical structures: Laboratory studies using the iterated learning paradigm
  Seiya Nakata; Masanori Takezawa
  Proceedings of the Twenty-Fifth International Symposium on Artificial Life and Robotics, 1002, 1006, 2020, [Peer-reviewed], [Last author]
  English, International conference proceedings, 31672640
• Explaining endurance and changes of social norms: Unexplained questions in evolutionary social sciences
  Takezawa, M
  Journal of Japanese Society for Artificial Intelligence, 34, 2, 168, 175, Mar. 2019, [Invited], [Lead author, Corresponding author]
  Japanese, Scientific journal

  
  Preprint
• Intergroup conflict and the evolution of altruism
  Takezawa, M
  Biological Science, 70, 3, 178, 185, Mar. 2019, [Peer-reviewed], [Invited], [Lead author, Corresponding author]
  Japanese, Scientific journal

  
  Preprint
• Cultural Differences in Strength of Conformity Explained Through Pathogen Stress: A Statistical Test Using Hierarchical Bayesian Estimation
  Masanori Takezawa
  Frontiers in Psychology, 9, 1921, 11 Oct. 2018, [Peer-reviewed], [Last author]
  English, Scientific journal
• On the necessity of rigorous modeling in psychology
  TAKEZAWA Masanori
  Japanese Psychological Review, 61, 1, 42, 54, Jul. 2018, [Invited], [Lead author, Corresponding author], [Domestic magazines]
  Japanese, Scientific journal, In the last decade, psychology faced a serious crisis, called the reproducibility problem. To solve the problem, several methodological and institutional changes have been proposed and implemented such as the promotion of replication studies and publication of negative results, the introduction of a preregistration system in academic journals, and the implementation of novel statistical methods for suppressing false-positive results. In this paper, based on a previously proposed formal model of population dynamics of scientific discovery, I first explain that these changes are insufficient for avoiding the reproducibility problem. Based on two examples in social psychology, I also discuss that what is necessary for fundamen- tal reformulation of psychology is rigorous modeling, which has already been widely applied in many sci- entific fields outside psychology.

  
  
• Commitment-enhancing tools in centipede games: Evidencing european–Japanese differences in trust and cooperation
  Krockow, E.M.; Takezawa, M.; Pulford, B.D.; Colman, A.M.; Smithers, S.; Kita, T.; Nakawake, Y.
  Judgment and Decision Making, 13, 1, 61, 72, 2018, [Peer-reviewed], ［Internationally co-authored］
  English, Scientific journal
• Cooperation and trust in Japanese and British samples: Evidence from incomplete information games
  Krockow, E.M.; Takezawa, M.; Pulford, B.D.; Colman, A.M.; Kita, T.
  International Perspectives in Psychology: Research, Practice, Consultation, 6, 4, 227, 245, 2017, [Peer-reviewed], ［Internationally co-authored］
  English, Scientific journal
• Reinforcement learning accounts for moody conditional cooperation behavior: experimental results
  Horita, Yutaka; Takezawa, Masanori; Inukai, Keigo; Kita, Toshimasa; Masuda, Naoki
  Scientific Reports, 7, 39275, Jan. 2017, [Peer-reviewed]
  English, Scientific journal
• Reinforcement Learning Explains Conditional Cooperation and Its Moody Cousin
  Takahiro Ezaki; Yutaka Horita; Masanori Takezawa; Naoki Masuda
  PLOS Computational Biology, 12, 7, e1005034, e1005034, 20 Jul. 2016, [Peer-reviewed]
  English, Scientific journal
• Strategies for the inference of mental states: Projection and stereotyping
  Tatsunori Ishii; Masanori Takezawa
  Research in Social Psychology, 32, 3, 187, 199, Japanese Society of Social Psychology, 2016, [Peer-reviewed], [Last author]
  Japanese, Scientific journal
• Transient nature of cooperation by pay-it-forward reciprocity
  Horita, Yutaka; Takezawa, Masanori; Kinjo, Takuji; Nakawake, Yo; Masuda, Naoki
  Scientific Reports, 6, 19471, Jan. 2016, [Peer-reviewed]
  English, Scientific journal
• Two distinct neural mechanisms underlying indirect reciprocity
  Takamitsu Watanabe; Masanori Takezawa; Yo Nakawake; Akira Kunimatsu; Hidenori Yamasue; Mitsuhiro Nakamura; Yasushi Miyashita; Naoki Masuda
  Proceedings of the National Academy of Sciences of the United States of America, 111, 11, 3990, 3995, Mar. 2014, [Peer-reviewed]
  English, Scientific journal
• Observation enhances third-party punishment only among people who were not hot-tempered
  Yutaka Horita; Masanori Takezawa
  Letters on Evolutionary Behavioral Science, 5, 1, 5, 8, Human Behavior and Evolution Society of Japan, Jan. 2014, [Peer-reviewed], [Last author]
  English, Scientific journal
• Potentials of socio-ecological approach from the evolutionary perspective : Comments on Takemura and Sato's article
  Masanori Takezawa
  Japanese Psychological Review, 55, 1, 64, 69, 心理学評論刊行会, 2012, [Invited], [Lead author, Corresponding author]
  Japanese, Scientific journal
• Perception of human face does not induce cooperation in darkness
  Kengo Tane; Masanori Takezawa
  Letters on Evolutionary Behavioral Science, 2, 2, 24, 27, Human Behavior and Evolution Society of Japan, Jul. 2011, [Peer-reviewed], [Last author]
  English, Scientific journal
• A cross-cultural perspective on the development of sharing behavior: Integrating behavioral economics and psychology
  Zhu, L.; Keller, M.; Gummerum, M.; Takezawa, M.
  Personality, Human Development, and Culture: International Perspectives On Psychological Science, 2, 141, 153, Personality, Human Development, and Culture: International Perspectives On Psychological Science, 17 Jun. 2010, [Peer-reviewed], [Last author], ［Internationally co-authored］
  Scientific journal
• Revisiting "The Evolution of Reciprocity in Sizable Groups": Continuous reciprocity in the repeated n-person prisoner's dilemma
  Masanori Takezawa; Michael E. Price
  JOURNAL OF THEORETICAL BIOLOGY, 264, 2, 188, 196, May 2010, [Peer-reviewed], [Lead author, Corresponding author], ［Internationally co-authored］
  English, Scientific journal
• Simple mechanisms for gathering social information
  Rocio Garcia-Retamero; Masanori Takezawa; Mirta Galesic
  New Ideas in Psychology, 28, 1, 49, 63, Apr. 2010, [Peer-reviewed]
  English
• Mutual liking and meta-perception accuracy
  Yohsuke Ohtsubo; Masanori Takezawa; Mitsuteru Fukuno
  European Journal of Social Psychology, 39, 5, 707, 718, Aug. 2009, [Peer-reviewed]
  English, Scientific journal
• Influence of group learning in search processes.
  Rocio Garcia-Retamero; Masanori Takezawa; Gerd Gigerenzer
  PSICOTHEMA, 21, 3, 369, 375, Aug. 2009, [Peer-reviewed], ［Internationally co-authored］
  Spanish, Castilian, Scientific journal
• The influence of social category and reciprocity on adults' and children's altruistic behaviour.
  Gummerum, M; Takezawa, M; Keller, M
  Evolutionary Psychology, 7, 2, 295, 316, 2009, [Peer-reviewed]
• Children's and Adolescents' Decisions about Sharing Money with Others
  Patrick J. Leman; Monika Keller; Masanori Takezawa; Michaela Gummerum
  SOCIAL DEVELOPMENT, 18, 3, 711, 727, 2009, [Peer-reviewed]
  English, Scientific journal
• Does Imitation Benefit Cue Order Learning?
  Rocio Garcia-Retamero; Masanori Takezawa; Gerd Gigerenzer
  Experimental Psychology, 56, 5, 307, 320, 2009, [Peer-reviewed]
  English, Scientific journal
• Group communication and decision-making strategies
  Rocio Garcia-Retamero; Masanori Takezawa; Gerd Gigerenzer
  PSICOTHEMA, 20, 4, 753, 759, Nov. 2008, [Peer-reviewed]
  Spanish, Castilian, Scientific journal
• To give or not to give: Children's and adolescents' sharing and moral negotiations in economic decision situations
  Michaela Gummerum; Monika Keller; Masanori Takezawa; Jutta Mata
  CHILD DEVELOPMENT, 79, 3, 562, 576, May 2008
  English, Scientific journal
• New methods in quantitative ethnography - Economic experiments and variation in the price of equality
  Charles Efferson; Masanori Takezawa; Richard McElreath
  Current Anthropology, 48, 6, 912, 919, Dec. 2007, [Peer-reviewed]
  English, Scientific journal
• Relationships and emotions in children's understanding of social contract violations
  Barre, H. Clark; Keller, Monika; Takezawa, Masanori; Wichary, Szymon
  Journal of Evolutionary Psychology, 5, 1, 213, 234, Akademiai Kiado Zrt., Mar. 2007, [Peer-reviewed]
  Scientific journal
• A stage for the rational tail of the emotional dog: Roles of moral reasoning in group decision making
  Masanori Takezawa; Michaela Gummerum; Monika Keller
  Journal of Economic Psychology, 27, 1, 117, 139, Feb. 2006, [Peer-reviewed], [Lead author, Corresponding author]
  English, Scientific journal
• How to learn good cue orders: When social learning benefits simple heuristics
  R. Garcia-Retamero; M. Takezawa; G. Gigerenzer
  Proceedings of the 28th Annual Conference of the Cognitive Science Society, 1352, 1357, 2006
• Where Do Social Norms Come From?
  Tatsuya Kameda; Masanori Takezawa; Reid Hastie
  Current Directions in Psychological Science, 14, 6, 331, 334, Dec. 2005, [Peer-reviewed]
  English, Scientific journal
• The logic of social sharing: An evolutionary game analysis of adaptive norm development
  T Kameda; M Takezawa; R Hastie
  Personality and Social Psychology Review, 7, 1, 2, 19, 2003, [Peer-reviewed]
  English, Scientific journal
• Social sharing and risk reduction - Exploring a computational algorithm for the psychology of windfall gains
  Kameda, Tatsuya; Takezawa, Masanori; Tindale, R. S.; Smith, C. M.
  Evolution and Human Behavior, 23, 1, 11, 33, Jan. 2002, [Peer-reviewed]
  English, Scientific journal
• Ownership and Sharing : Exploring Social Foundations of Communal Sharing Norm by Evolutionary Game Analysis
  Takezawa, Masanori; Kameda, Tatsuya
  Cognitive Studies, 6, 2, 191, 205, Japanese Cognitive Science Society, Jun. 1999, [Peer-reviewed], [Lead author, Corresponding author]
  Japanese, Scientific journal, How does a reciprocal communal sharing system come into existence in a sustainable form in human societies? The anthropological literature has provided two explanations for the origin of communal sharing under uncertainty: risk reduction by social sharing (Kaplan & Hill, 1985) and tolerated theft (Blurton Jones, 1984, 1987; Winterhalder, 1986, 1996). In this paper, we aim to develop a third explanation focusing on the emergence of a communal sharing norm. A communal sharing norm here refers to a social norm designating uncertain resources as common properties. A series of computer simulations based on an evolutionary game framework suggests that such a communal sharing norm is indeed evolvable. We argue that the evolutionary game analysis can be a powerful tool in cognitive science to derive empirical hypotheses concerning various cognitive and behavioral mechanisms.
• The Effect of an Unfair Treatment in the Resolution of a Social Dilemma
  Takezawa, Masanori
  Japanese Journal of Experimental Social Psychology, 39, 1, 30, 40, The Japanese Group Dynamics Association, 1999, [Peer-reviewed], [Lead author, Corresponding author]
  Japanese, Scientific journal, The social dilemma problem has been noticed to be involved in collective action. In this paper I explained a process through which the social dilemma problem involved in collective action is resolved when participants share the heightened sense of unfairness. The heightened sense of being unfairly treated motivates people to take actions aimed at restoring fairness. It also is expected to foster expectations that other people are also motivated to take such fairness-restoring actions. This is because unfair situation people want to redress through a collective action is most likely to be shared by potential participants of the collective action. The sense of being unfairly treated, thus, is expected to promote cooperation in a social dilemma. I tested the effect of unfair treatment in a social dilemma in two experiment, each using a unique type of dilemma. The social dilemma in the first experiment was created in such a manner that expectations that others would also cooperate was to be critical for the participants' decision. The results showed that the experience of unfair treatment affected the participants' motivation and expectations, and boosted the cooperation level. The dilemma used in the second experiment was of such a nature that expectations were not critical for the participants' decision. The results showed that experience of unfair treatment affected only the participants' motivation, but not expectations, and yet boosted the cooperation level.
• Centrality in sociocognitive networks and social influence: An illustration in a group decision-making context
  Kameda, Tatsuya; Ohtsubo, Yohsuke; Takezawa, Masanori
  Journal of Personality and Social Psychology, 73, 2, 296, 309, Aug. 1997, [Peer-reviewed]
  English, Scientific journal

• Iterated cultural transmission can promote more efficient technology through reduction in complexity
  Masaki Suyama; Yo Nakawake; Masanori Takezawa, 30 May 2025, [Last author, Corresponding author]
• Book review: Mathematics of Cultural Evolution (2020) by Kohei Tamura, Morikita Publishing
  Masanori Takezawa, Japanese Journal of Social Psychology, 36, 6, 114, 115, Apr. 2021, [Lead author, Corresponding author]
  Japanese
• Editorial: The new style of psychological research: CHANGE we can believe in
  Asako Miura; Masaki Tomonaga; Etsuko Harada; Yuki Yamada; Masanori Takezawa, Japanese Psychological Review, 62, 3, 197, 204, 22 Dec. 2019, [Invited]
  Japanese
• The robust beauty of the majority rule by a small number of selected members
  Yo Nakawake; Masanori Takezawa, 31 Aug. 2019, [Last author]
  

  The principle of majority rule is a major decision-making strategy widely used in human and animal society. While majority rule yields highly accurate performance compared to individuals in the same situation, its performance is strongly undermined by a small correlation among individual judgments. We focus on the alternative, selected majority rule, which is the majority rule by a small number of comities selected from the large group. The present study investigated relative advantages of a smaller group of selected majority rule with computer simulation, systematically controlling 4 parameters—group size, distribution of individual performance (mean and variance), and correlation among decisions. The result showed that compared to simple majority rule and the single expert, the selected majority rule robustly yields higher performance against changes in these parameter values. Further, the absolute number of committee members contributes to robustness against the influence of group size. This robustness is undermined if the number of committee members increases proportionally to the number of total members, even though the committee members are a minority. Thus, an absolute number of group size is more critical than the proportion of selected members. This study indicates that the rationale for the majority decision of smaller committees is often fixed against the total number of members in the organization in terms of decision accuracy.

  , Center for Open Science, English
• Testing the similarity-projection hypothesis using the reaction time paradigm: Anchoring and adjustment in social judgments
  Tatsunori Ishii, Dr.; Masanori Takezawa, PsyArXiv (February 22. 2019)., 22 Feb. 2019
  English, Technical report
• The Influence of Optimism on the Accuracy of Contingency Judgment : An Examination from the Viewpoint of Depressive Realism
  Fuyuko Izawa; Masanori Takezawa, Psychological Report of Sophia University, 37, 49, 61, 2013
  上智大学総合人間科学部心理学科, Japanese, Introduction research institution
• Paradoxical Effect of Suppressing Positive vs. Negative Stereotype
  Amane Kawano; Masanori Takezawa; Takashi Oka, Psychological Report of Sophia University, 36, 1, 7, 2012
  上智大学総合人間科学部心理学科, Japanese, Introduction research institution
• Development of the Meaning of Significant other Scale
  Tatsunori Ishii; Masanori Takezawa, Psychological Report of Sophia University, 35, 51, 59, 2011
  上智大学総合人間科学部心理学科, Japanese, Introduction research institution
• Relationships between Optimism, Estimation of Event Occurrence, and Mental Health
  Fuyuko Izawa; Yoshihisa Aketa; Masanori Takezawa, Psychological Report of Sophia University, 35, 71, 80, 2011
  上智大学総合人間科学部心理学科, Japanese, Introduction research institution
• Reports of the 31st Annual Conference of the Cognitive Science Society and Cognitive Science in the Netherlands
  Tanaka Akihiro; Takezawa Masanori; Nakamura Kuninori; Hayashi Yugo; Hidaka Shohei; Honda Hidehito, Cognitive Studies, 16, 4, 532, 540, 2009
  Japanese Cognitive Science Society
• On Receiving the JCSS Award
  TAKWZAWA Masanori, Cognitive Studies, 7, 3, 185, 186, 01 Sep. 2000
  Japanese Cognitive Science Society, Japanese

• Development in Evolutionary Psychology
  Masanori Takezawa, Evolutionary Psychology and Cognition (Ch. 4)
  Asakura Publishers, Jun. 2023, 9784254523065, 38-50, BOOK_TITLE_EN: Development in Evolutionary Psychology
  EDITORS_EN: Oda, Ryo; Ohtsubo, Yohsuke
  CHAPTER_TITLE_EN: Evolutionary Psychology and Cognition, [Contributor]
• Exploring the origins of education: Evolutionary and cultural perspective
  Seiya Nakata; Masanori Takezawa, Teaching and cumulative cultural evolution: Exploring micro-macro dynamics with computational models of teaching
  Chitose Press, Mar. 2023, 9784908736292, Japanese, BOOK_TITLE_EN: Exploring the origins of education: Evolutionary and cultural perspectives
  EDITORS_EN: Ando, Juko
  CHAPTER_TITLE_EN: Teaching and cumulative cultural evolution: Exploring micro-macro dynamics with computational models of teaching, [Contributor]
• Encyclopedia of Human Behavior from Evolutionary Perspective
  Takezawa, M, Resource exchange (Ch. 20)
  Asakura Publishing, Jun. 2021, 9784254523058, 107-112, EDITORS_EN: Oda, Ryo; Hashiya, Kazuhide; Yohsuke, Ohtsubo; Hiraishi, Kai
  BOOK_TITLE_EN: Encyclopedia of Human Behavior from Evolutionary Perspective
  CHAPTER_TITLE_EN: Resource Exchange, [Contributor]
• Japanese translation of "A cooperative species: Human Reciprocity and its Evolution"
  Masanori Takezawa; Nobuyuki Takahashi; Hisashi Ohtsuki; Misato Inaba; Ayaka Hatano, Translation Supervisor
  Samuel Bowles; Herbert Gintis, NTT Publishing, Jan. 2017, 4757122896, 453, [Joint translation]

  
• Social Psychology
  Takezawa, Masanori, Evolutionary Approach in Social Psychology (Ch. 15)
  Nakanishiya Publishing, Sep. 2016, 4779510597, 398, 269-289, EDITORS_EN: Kitamura, Hideya; Uchida, Yukiko
  BOOK_TITLE_EN: Social Psychology
  CHAPTER_TITLE_EN: Evolutionary Approach in Social Psychology (Ch. 15), [Contributor]

  
• Commentary for Japanese Translation of "Cultural Evolution: How Darwinian theory can explain human culture and synthesise the social sciences by Alex Mesoudi"
  Masanori Takezawa, Commentary for Japanese Translation
  NTT publications, Feb. 2016, 4757143303, 403, Japanese, Scholarly book, [Contributor]
• Seishin Psychology Dictionary (New Edition)
  Masanori Takezawa, Biases in Decision Making
  Seisin Syobo, Sep. 2014, 4414305071, 1088, 856-859, EDITORS_EN: Shimoyama, Haruhiko
  BOOK_TITLE_EN: Seishin Psychology Dictionary (New Edition)
  CHAPTER_TITLE_EN: Biases in Decision Making, [Contributor]

  
• Coexistence in Societies (Vol. 4 of Science of Communications)
  Takahashi, N.; Takezawa, M., Cooperation and Sanctions
  Iwanami Syoten, Jun. 2014, 4000113747, 248, 121-144, EDITORS_EN: Anzai, Yuichiro; Imai, Mutsumi; Iriki, Atsushi; Umeda, Satoshi; Katayama, Yohichiro; Kameda, Tatsuya; Yamagishi, Toshio
  BOOK_TITLE_EN: Coexistence in Societies (Vol. 4 of Science of Communications)
  CHAPTER_TITLE_EN: Cooperation and Sanctions, [Contributor]

  
• Simple Heuristics in a Social World
  Garcia-Retamero; R. Takezawa; M. Woike; J. K; Gigerenzer, G, Social Learning: A Route to Good Cue Orders
  Oxford University Press, Apr. 2013, 0195388437, 672, 343-353, EDITORS_EN: Hertwig, Ralph;Hoffrage, Ulrich; the ABC Research Group;, ［Internationally co-authored］, [Contributor]

  
• Simple Heuristics in a Social World
  Keller, M. Gummerum; M. Canz; T. Gigerenzer; G; Takezawa, M, The Is and Ought of sharing: The equality heuristic across the lifespan
  Oxford University Press Inc, Apr. 2013, 171-195, EDITORS_EN: Hertwig, Ralph;Hoffrage, Ulrich; the ABC Research Group;, ［Internationally co-authored］, [Contributor]

  
• Behavioral Biology Dictionary
  Takezawa, Masanori, Cognitive Biases
  Tokyo Kagaku Doujin, 2013, 9784807908370, 411, EDITORS_EN: Ueda, Keisuke; Okanoya, Kazuo; Kikusui, Takefumi; Sakagami, Takayuki; Tsuji, Kazuki; Tomonaga, Masami; Nakajima, Sadahiko; Hasegawa, Toshikazu; Matsushima, Toshiya;
  BOOK_TITLE_EN: Behavioral Biology Dictionary
  CHAPTER_TITLE_EN: Cognitive Biases, [Contributor]
• Heuristics: The Foundations of Adaptive Behavior
  Rocio Garcia-Retamero; Masanori Takezawa; Gerd Gigerenzer, Does Imitation Benefit Cue Order Learning?
  Oxford University Press, Apr. 2011, 9780199744282, 438-453, EDITORS_EN: Gerd Gigerenzer; Ralph Hertwig; Thorsten Pachur;, ［Internationally co-authored］, [Contributor]
• Heuristics: The Foundations of Adaptive Behavior
  Laura Martignon; Oliver Vitouch; Masanori Takezawa; Malcolm R. Forster, Naive and yet Enlightened: From Natural Frequencies to Fast and Frugal Decision Trees
  Oxford University Press, Apr. 2011, 9780199744282, 136-150, EDITORS_EN: Gerd Gigerenzer; Ralph Hertwig; Thorsten Pachur;, ［Internationally co-authored］, [Contributor]
• Japanese Encyclopedia of Social Psychology
  Takezawa, M, Cooperation, Games (2 articles in a book)
  Maruzen, 2010, 9784621081075, EDITORS_EN: Ueda, Japanese Society of Social Psychology
  BOOK_TITLE_EN: Japanese Encyclopedia of Social Psychology
  CHAPTER_TITLE_EN: Cooperation, Games (2 articles in a book), [Contributor]
• Evolution, Culture, and the Human Mind
  Kameda, Tatsuya; Takezawa, Masanori, Are our minds fundamentally egalitarian? Adaptive bases of different socio-cultural models about distributive justice
  Psychology Press, 2009, 9780805859119, EDITORS_EN: Schaller, M; Heine, S. J.; Norenzayan, A.; Yamagishi, T.; Kameda, T.;
  BOOK_TITLE_EN: Evolution, Culture, and the Human Mind
  CHAPTER_TITLE_EN: Are our minds fundamentally egalitarian? Adaptive bases of different socio-cultural models about distributive justice, [Contributor]
• Foundations of Evolutionary Psychology: Ideas, Issues, Applications and Findings
  Johnson; D. D. P.; Price, M. E.; Takezawa, M., Renaissance of the Individual: Reciprocity, Positive Assortment, and the Puzzle of Human Cooperation
  Lawrence Erlbaum, 2008, 9780805859577, 331-352, EDITORS_EN: Crawford, C.; Krebs, D.;
  BOOK_TITLE_EN: Foundations of Evolutionary Psychology: Ideas, Issues, Applications and Findings
  CHAPTER_TITLE_EN: Renaissance of the Individual: Reciprocity, Positive Assortment, and the Puzzle of Human Cooperation, [Contributor]
• Psychological perspectives on reasoning, judgment and decision making
  Martignon, Laura; Vitouch, Oliver; Takezawa, Masanori; Forster, Malcolm R., Naive and yet Enlightened: From Natural Frequenciesto Fast and Frugal Decision Trees
  Wiley, 2003, 9780471494577, 189-211, EDITORS_EN: Macchi, L; Hardman, D.;
  BOOK_TITLE_EN: Psychological perspectives on reasoning, judgment and decision making
  CHAPTER_TITLE_EN: Naive and yet Enlightened: From Natural Frequenciesto Fast and Frugal Decision Trees, [Contributor]
• Development of evolutionary games
  Masanori Takezawa; Tatsuya Kameda, Ownership and sharing: Exploring social foundations of communal sharing norm by evolutionary game analysis
  Kyoritsu Shuppan, 2002, 9784320094390, EDITORS_EN: Sayeki, Yutaka; Kameda, Tatsuya;
  BOOK_TITLE_EN: Development of evolutionary games
  CHAPTER_TITLE_EN: Ownership and sharing: Exploring social foundations of communal sharing norm by evolutionary game analysis, [Contributor]

• Why high-trusters are more sensitive to the trustworthiness information: Explanations from the Bayesian approach
  Yusuke Saito; Masanori Takezawa
  The 18th annual meeting of the Human Behavior and Evolution Society of Japan, 29 Nov. 2025, Japanese, Poster presentation
• The robustness of the wisdom of unanimity rule: A Dynamic model of probabilistic expression of opinions in group discussion
  Kaito Takenishi; Masanori Takezawa
  The 18th annual meeting of the Human Behavior and Evolution Society of Japan, 29 Nov. 2025, Japanese, Oral presentation
• Explaining societal differences in general trust with hierarchical Bayesian cognitive models
  Yusuke Saito; Masanori Takezawa
  The 66th annual meeting of the Japanese Society of Social Psychology, 21 Sep. 2025, Japanese, Oral presentation
• The wisdom of crowds emerges from the confidence-based unanimity rule in group discussion
  Kaito Takenishi; Masanori Takezawa
  The 66th annual meeting of the Japanese Society of Social Psychology, 20 Sep. 2025, Japanese, Oral presentation
• Quantal response equilibrium and mean field
  Yu Takiguchi; Masanori Takezawa
  The 80th Annual Conference of The Physical Society of Japan, 17 Sep. 2025, Japanese, Oral presentation
• 森中(2024)に対する論評 『人の心は科学的事実によって動かせるのか？』
  竹澤正哲
  日本生物地理学会市民シンポジウム「次世代にどのような社会を贈るのか？」, 12 Apr. 2025, Japanese, Nominated symposium
  [Invited]

  
  Published
• Quantal response equilibrium and statistical physics
  Yu Takiguchi; Masanori Takezawa
  Network Science Seminar 2024, 04 Mar. 2025, School of Statistical Thinking, The Institute of Statistical Mathematics, Japanese, Poster presentation
  04 Mar. 2025 - 05 Mar. 2025, The Institute of Statistical Mathematics, [Domestic Conference]
• Re-examination of thick-relationship theory of trust (Hardin, 1993) with Hierarchical Bayesian Learning Models
  Yusuke Saito; Masanori Takezawa
  The 17th annual meeting of Human Behavior and Evolution Society of Japan, 08 Dec. 2024, Japanese, Poster presentation
  07 Dec. 2024 - 08 Dec. 2024
• Collective intelligence of the unanimity rule: A temporal dynamics model of group discussion
  Kaito Takenishi; Masanori Takezawa
  The 17th annual meeting of Human Behavior and Evolution Society of Japan, 07 Dec. 2024, Japanese, Poster presentation
  07 Dec. 2024 - 08 Dec. 2024
• Exploring mechanisms of norm-compliance using reinforcement learning models
  Hinako Sasagawa; Masanori Takezawa
  The 17th annual meeting of Human Behavior and Evolution Society of Japan, 07 Dec. 2024, Japanese, Poster presentation
  07 Dec. 2024 - 08 Dec. 2024
• Reinforcement learning and norm internalization: Examining two computational models
  Hinako Sasagawa; Masanori Takezawa
  The 65th annual meeting of the Japanese Society of Social Psychology, 01 Sep. 2024, Japanese, Oral presentation
  31 Aug. 2024 - 01 Sep. 2024
• Evolution of cooperation under (third-party) punishment: Perspectives of evolutionary sciences and cultural evolutionay theory
  Masanori Takezawa
  Annual Meeting of Japanese Association of Sociology of Law, 18 May 2024, Japanese, Public symposium
  18 May 2024 - 19 May 2024
• Small models and large reality: Significance of mathematical models from a citizen's perspective
  Masanori Takezawa
  New Research Areas Exploration Symposium 2024, 21 Mar. 2024, Reserch Center of Mathematics for Social Creativity, Reserch Institute for Electronic Science, Hokkaido University; Hitachi Hokkaido University Laboratory, Japanese, Invited oral presentation
  21 Mar. 2024 - Mar. 2024, [Invited], [Domestic Conference]
• Cumulative cultural evolution under incomplete information transmission: Reinvestigation of Nakwake & Takezawa (2014)
  Yusuke Saito; Yo Nakawake; Masanori Takezawa
  The 16th annual meeting of Human Behavior and Evolution Society of Japan, 02 Dec. 2023, Japanese, Poster presentation
• Maladaptive cultural evolution and oblique transmission
  Chinatsu Sano; Masanori Takezawa
  The 16th annual meeting of Human Behavior and Evolution Society of Japan, 02 Dec. 2023, Japanese, Poster presentation
• コミュニケーションと文化伝達による語順規則の創発
  中田星矢; 大平朱莉; 竹澤正哲
  第87回日本心理学会大会, 16 Sep. 2023, Japanese, Poster presentation
  [Domestic Conference]
• 斜行伝達に基づく非適応的な文化進化 Richerson & Boyd (1984)の再検討
  佐野千夏; 竹澤正哲
  第54回日本社会心理学会大会, 08 Sep. 2023, Japanese, Oral presentation
  07 Sep. 2023 - 08 Sep. 2023
• 同調と罰が生み出す協力社会のマクロ・ダイナミクス
  貴堂 雄太; 竹澤正哲
  第54回日本社会心理学会大会, 08 Sep. 2023, Japanese, Oral presentation
• Roles of homogeneity and diversity in the evolution of cooperative social norms
  Masanori Takezawa
  Diverse Intelligence Summit 2023, 17 Jul. 2023, English, Invited oral presentation
  17 Jul. 2023 - 19 Jul. 2023, [Invited]
• Adaptive reinforcement learning under volatility and risk: Evolutionary computer simulations
  Shogo Honma; Masanori Takezawa
  The 15th annual meeting of Human Behavior and Evolution Society of Japan, 10 Dec. 2022, Japanese, Poster presentation
• Evolution of oblique transmission
  Chinatsu Sano; Masanori Takezawa
  The 15th annual meeting of Human Behavior and Evolution Society of Japan, 10 Dec. 2022, Japanese, Poster presentation
• Does cooperation disperse across the group boundaries?: Cultural-evolutionary processes of cooperation based on payoff-biased imitation
  Yuta Kido; Miki Orikake; Emi Yamashita; Shun Watanabe; Shogo Honma; Masanori Takezawa
  The 15th annual meeting of Human Behavior and Evolution Society of Japan, 10 Dec. 2022, Japanese, Oral presentation
• Coevolution of norm-psychology and cooperation under exapted conformity
  Yuta Kido; Masanori Takezawa
  The 68th annual conference of Japanese Group Dynamics Society, 17 Sep. 2022, English, Oral presentation
• Cultural evolution of group-beneficial norms: Empirical investigations of cultural group selection theory using computational model analyses
  Saaya Abe; Shuhei Tsuchida; Masanori Takezawa
  The 63rd annual conference of Japanese Society of Social Psychology, 14 Sep. 2022, Japanese, Oral presentation
• Transmission of cooperative behavior across groups: Experimental studies with public goods games
  Yuta Kido; Emi Yamashita; Shun Watanabe; Shogo Honma; Masanori Takezawa
  The 63rd annual conference of Japanese Society of Social Psychology, 14 Sep. 2022, Japanese, Oral presentation
• Adaptive learning under risk and volatility: Evolutionary simulations of reinforcement learning
  Shogo Honma; Masanori Takezawa
  The 63rd annual conference of Japanese Society of Social Psychology, 14 Sep. 2022, Japanese, Oral presentation
• Cultural evolution of group beneficial norms: The analysis of social learning strategies by computational modeling
  Saaya Abe; Masanori Takezawa
  Cultural Evolution Society Conference 2022, Sep. 2022, English, Oral presentation
  Sep. 2022 - Sep. 2022, [International presentation]
• Coevolution of norm-psychology and cooperation under exapted conformity
  Yuta Kido; Masanori Takezawa
  Cultural Evolution Society Conference 2022, Sep. 2022, English, Nominated symposium
  Sep. 2022 - Sep. 2022, [International presentation]
• How replication crisis changed the ways of conducting research
  Masanori Takezawa
  The 9th Spring Methodology Seminar of Japanese Society of Social Psychology -- How to deal with questionable research practices in psychology, 19 Mar. 2022, Public discourse
  [Invited]
• Cultural evolution of group-beneficial strategies: Experimental tests of cultural group selection
  Saaya Abe; Shuhei Tsuchida; Masanori Takezawa
  The 14th annual conference of Human Behavior and Evolution Society of Japan, Dec. 2021, Japanese, Poster presentation
  Dec. 2021 - Dec. 2021
• Does "superimposition of the self and the other" exist in the human brain?: Interdisciplinary research between philosophy and cognitive neuroscience
  Shogo Homma; Toyoki Yamagata; Kenji Ogawa; Shigeru TAGUCHI; Masanori Takezawa
  The 14th annual conference of Human Behavior and Evolution Society of Japan, Dec. 2021, Japanese, Poster presentation
  Dec. 2021 - Dec. 2021
• Does communication promote the cultural evolution of language structure: Experimental infestations with an iteration learning experiment
  Seiya Nakata; Akari Ohira; Masanori Takezawa
  The 14th annual conference of Human Behavior and Evolution Society of Japan, Dec. 2021, Japanese, Poster presentation
  Dec. 2021 - Dec. 2021
• Does conformist transmission bias promote the evolution of cooperation?: Influences of two distinct social norms on the evolution of cooperation
  Yuta Kido; Masanori Takezawa
  The 14th annual conference of Human Behavior and Evolution Society of Japan, Dec. 2021, Japanese, Poster presentation
  Dec. 2021 - Dec. 2021
• Neural expression of superimposing of the self and others?: Interdisciplinary study combining phenomenology and the functional brain imaging method
  Shogo Honma; Toyoki Yamagata; Kenji Ogawa; Shigeru Taguchi; Masanori Takezawa
  The 62nd conference of Japanese Society of Social Psychology, Aug. 2021, Japanese, Poster presentation
  Aug. 2021 - Aug. 2021, 11948789
• Influences of teaching lengths and task difficulty on cumulative cultural evolution
  Seiya Nakata; Masanori Takezawa
  The 62nd conference of Japanese Society of Social Psychology, Aug. 2021, Japanese, Poster presentation
  Aug. 2021 - Aug. 2021
• Cultural evolution of group-beneficial strategies: Experimental tests of cultural group selection
  Saaya Abe; Shuhei Tsuchida; Masanori Takezawa
  The 62nd conference of Japanese Society of Social Psychology, Aug. 2021, Japanese, Poster presentation
  Aug. 2021 - Aug. 2021
• Does conformist transmission bias promote the evolution of cooperation?: Interactions of two distinct social norms and norm internalization capacities
  Yuta Kido; Masanori Takezawa
  The 62nd conference of Japanese Society of Social Psychology, Aug. 2021, Japanese, Poster presentation
  Aug. 2021 - Aug. 2021
• The coevolution of norm-internalization and frequency dependent preferences through cultural group selection
  Yuta Kido; Masanori Takezawa
  Cultural Evolution Society Conference 2021 Sapporo, Jun. 2021, English, Oral presentation
  Jun. 2021 - Jun. 2021
• The evolution of group beneficial strategies - An experimental study of cultural group selection
  Saaya Abe; Shuhei Tsuchida; Masanori Takezawa
  Cultural Evolution Society Conference 2021 Sapporo, Jun. 2021, English, Oral presentation
  Jun. 2021 - Jun. 2021
• Conditions under which long-term teaching contributes to the cumulative cultural evolution of technology
  Seiya Nakata; Masanori Takezawa
  Cultural Evolution Society Conference 2021 Sapporo, Jun. 2021, English, Oral presentation
  Jun. 2021 - Jun. 2021
• Adaptive foundations of constructing causal models of environmental structure: Simulation study of model-based learning
  Shun Watanabe; Masanori Takezawa
  The 13th Annual Conference for Human Behavior and Evolution Society for Japan, Dec. 2020, Japanese, Poster presentation
• Coevolution of norm internalization capacity and prosocial norms
  Yuta Kido; Masanori Takezawa
  The 13th Annual Conference for Human Behavior and Evolution Society for Japan, Dec. 2020, Japanese, Poster presentation
• Decision under risk and adaptive learning bias: Examining evolutionary models of reinforcement learning
  Shogo Honma; Masanori Takezawa
  The 13th Annual Conference for Human Behavior and Evolution Society for Japan, Dec. 2020, Japanese, Poster presentation
• Conditions for that longitudinal teaching enhances cumulative cultural evolution of technology: Task complexity and teaching durations
  Seiya Nakata; Masanori Takezawa
  The 13th Annual Conference for Human Behavior and Evolution Society for Japan, Dec. 2020, Japanese, Poster presentation
• Evolution of adaptive learning biases under risk: Theoretical investigations with reinforcement learning agents
  Shogo Honma; Masanori Takezawa
  The 61st Annual Meeting for Japanese Society of Social Psychology, Nov. 2020, Japanese, Poster presentation
• Coevolution of norm internalization and prosocial norms
  Kido, Y; Takezawa, M
  The 61st Annual Meeting for Japanese Society of Social Psychology, Nov. 2020, Japanese, Poster presentation
• Conditions for cumulative cultural transmission to be enhanced by teaching and faithful cultural transmission:
  Nakata; S. Takezawa
  The 61st Annual Meeting for Japanese Society of Social Psychology, Nov. 2020, Japanese, Poster presentation
• Solving Galton's problem with hierarchical Bayesian and Gaussian process models: Reanalyses of the relationships between environment severity and social norm tightness
  Yukihira, T; Takezawa, M
  The 61st Annual Meeting for Japanese Society of Social Psychology, Nov. 2020, Poster presentation
• Benefits of knowing about causal structure of environments in learning: Simulation study on model-based learning
  Watanabe, S; Takezawa, M
  The 61st Annual Meeting for Japanese Society of Social Psychology, Nov. 2020, Japanese, Poster presentation
• Influences of environmental severity on tightness of social norms: Reanalyses controlling for spatial auto-correlation
  Yukihira, T; Takezawa, M
  The 12th Annual Meeting of Human Behavior and Evolution Society in Japan, Dec. 2019, Japanese, Poster presentation
• Roles of cultural transmission in the emergence of hierarchical structure: Experimental study with iteration learning paradigm
  Nakata, S; Mori, M; Takezawa, M
  The 12th Annual Meeting of Human Behavior and Evolution Society in Japan, Dec. 2019, Japanese, Oral presentation
• Prediction error and decision under risk: Evolutionary simulations with reinforcement learning agents
  Honma, S; Takezawa, M
  The 12th Annual Meeting of Human Behavior and Evolution Society in Japan, Nov. 2019, Japanese, Oral presentation
• Evolution of cooperation and sensitivity to punishment
  Tsuchida, S; Takezawa, M
  The 60th annual meeting for Japanese Society of Social Psychology, Nov. 2019, Japanese, Oral presentation
• Structure emerging from the processes of information transmission: Experimental investigation using non-linguistic task
  Nakata, S; Takezawa, M
  The 60th annual meeting for Japanese Society of Social Psychology, Nov. 2019, Japanese, Oral presentation
• Negative prediction error and decision under risk: Evolutionary computer simulations with reinforcement learning agents
  Honma, S; Takezawa, M
  The 60th annual meeting for Japanese Society of Social Psychology, Nov. 2019, Japanese, Oral presentation
• Does teaching promote the cumulative cultural evolution?: Simulations with a computational model of teaching
  Nakata, S; Takezawa, M
  The 14th annual conference of the European Human Behavior and Evolution Association, Apr. 2019, English, Poster presentation
  France, Toulouse, [International presentation]
• Risk aversion and prosocial preferences: Psychological adaptations in uncertain natural environments
  Homma, S; Takezawa, M
  The 14th annual conference of the European Human Behavior and Evolution Association, Apr. 2019, English, Poster presentation
  France, Toulouse, [International presentation]
• 強化学習モデルによる協力傾向の個人差の探索的検討
  本間祥吾; 竹澤正哲
  第22回実験社会科学カンファレンス, 22 Dec. 2018, Japanese, Poster presentation
  [Domestic Conference]
• 強化学習による（気まぐれな）条件付き協力行動の説明
  堀田結孝; 竹澤正哲; 犬飼佳吾; 喜多敏正; 増田直紀
  第22回実験社会科学カンファレンス, 22 Dec. 2018, Japanese, Oral presentation
  [Domestic Conference]
• Rethinking the influence of pathogen prevalence on cultural differences in collectivism: Reanalyses with hierarchical Bayesian models
  Horita, Y; Takezawa, M
  The 11th annual meeting of Human Behavior and Evolution Society in Japan, 01 Dec. 2018, Japanese, Oral presentation
  高知市, [Domestic Conference]
• Coevolution of sensitivity in punishment, punishment and cooperation
  Tsuchida; Takezawa, M
  The 11th annual meeting of Human Behavior and Evolution Society in Japan, 01 Dec. 2018, Japanese, Oral presentation
  高知市, [Domestic Conference]
• Explaining individual differences in cooperation with reinforcement learning
  Homma, S; Takezawa, M
  The 11th annual meeting of Human Behavior and Evolution Society in Japan, 01 Dec. 2018, Japanese, Poster presentation
  高知市, [Domestic Conference]
• Do longitudinal teaching promotes the cumulative cultural evolution of technology?: Computational models of teaching
  Nakata, S; Takezawa, M
  The 11th annual meeting of Human Behavior and Evolution Society in Japan, 01 Dec. 2018, Japanese, Poster presentation
  高知市, [Domestic Conference]
• Does teaching promote the cumulative cultural evolution?: Agent-based simulations with computational models of teaching
  Takezawa, M; Nakata, S
  The 2nd conference of Cultural Evolution Society, 22 Oct. 2018, Oral presentation
  Tempe, USA, [International presentation]
• Origins and dynamics of cultural differences: Perspectives of cultural evolution
  Takezawa, M
  The 82nd annual meeting of Japanese Psychological Society, 27 Sep. 2018, Japanese, Public symposium
  仙台市, [Domestic Conference]
• Do expectations of punishment explain internalization of social norms?
  Homma, S; Takezawa, M
  The 59th annual meeting of Japanese Society for Social Psychology, 28 Aug. 2018, Japanese, Oral presentation
  追手門学院大学, [Domestic Conference]
• Reinforcement learning produces individual differences in cooperation
  Tsuchida, S; Nakajima, A; Horita, Y; Takezawa, M
  The 59th annual meeting of Japanese Society for Social Psychology, 28 Aug. 2018, Japanese, Oral presentation
  追手門学院大学, [Domestic Conference]
• Influences of teaching on the cumulative cultural evolution: Computer simulations with a computational model of teaching
  Nakata, S; Takezawa, M
  The 59th annual meeting of Japanese Society for Social Psychology, 28 Aug. 2018, Japanese, Oral presentation
  追手門学院大学, [Domestic Conference]
• Experimental studies on the cumulative cultural evolution of technologies and arts
  Takezawa, M; Suyama, M
  Alife 2018 | The 2018 Conference on Artificial Life, 23 Jul. 2018, Oral presentation
  Tokyo, Japan, [International presentation]
• Cultural Evolution of Artistic Traditions in A Laboratory: Entropy and Aesthetic Preferences
  Takezawa, M; Suyama, M
  The 13th Conference of the European Evolution and Human Behaviour Association, 04 Apr. 2018, Oral presentation
  P?cs, Hungary, [International presentation]
• Cultural Evolution of Beauty: Exploration Using Lab Experimentation
  Suyama, M; Takezawa, M
  The 58th annual meeting of the Japanese Society of Social Psychology, 28 Oct. 2017, Oral presentation
  Hiroshima, Japan, [Domestic Conference]
• A minimum set of factors necessary for the evolution of punishment: The effect of a behavioral error.
  Tsuchida, S; Takezawa, M
  The 58th annual meeting of the Japanese Society of Social Psychology, 28 Oct. 2017, Oral presentation
  Hiroshima, Japan, [Domestic Conference]
• Developing an computational model of cooperation: Moody conditional cooperation and reinforcement learning
  Takezawa, M; Horita, Y; Ezaki, T; Inukai, K; Kita, T; Masuda, N
  The 58th annual meeting of the Japanese Society of Social Psychology, 28 Oct. 2017, Oral presentation
  Hiroshima, Japan, [Domestic Conference]
• Cumulative cultural evolution of scientific knowledge: Experimental investigation
  Takezawa, M
  The 27th annual meeting of the Japanese Society for Mathematical Biology, 06 Oct. 2017, Nominated symposium
  Sapporo, Japan, [Invited], [Domestic Conference]
• Group selection and cooperation: Can’t the human beings be freed from the constraints of parochial altruism?
  Takezawa, M; Takahashi, N
  The 81st Annual Convention of the Japanese Psychological Association, 20 Sep. 2017, Oral presentation
  Kurume, Japan, [Domestic Conference]
• Algorithms of collective behavior: Toward computational cross-species comparisons
  Takezawa, M
  The 81st Annual Convention of the Japanese Psychological Association, 20 Sep. 2017, Oral presentation
  Kurume, Japan, [Domestic Conference]
• What governs behavior in a public goods game: Social preferences or reinforcement learning?
  Takezawa, M; Horita, Y; Ezaki, T; Masuda, N
  Inaugural Cultural Evolution Society Conference, 13 Sep. 2017, Oral presentation
  Jena, Germany, [International presentation]
• Informational loss during transmission may drive cumulative cultural evolution
  Nakawake, Y; Takezawa, M
  Inaugural Cultural Evolution Society Conference, 13 Sep. 2017, Oral presentation
  Jena, Germany, [International presentation]
• Cumulative cultural evolution and the multimodal fitness landscape
  Takezawa, M
  Perspectives on Prehistoric Cultural Evolution: From Archaeology to Behavioral Experiment, 07 Aug. 2017, Oral presentation
  Tokyo, Japan, [Invited], [International presentation]
• A minimum set of factors necessary for the punishment and cooperation to evolve without the aid of cultural group selection
  Tsuchida, S; Takezawa, M
  The 17th International Conference on Social Dilemmas, 20 Jun. 2017, Oral presentation
  Taormina, Italy, [International presentation]
• Conditions for the evolution of punishment and cooperation without relying on cultural group selection.
  Tsuchida, S; Takezawa, M
  The 29th annual meetings of the Human Behavior and Evolution Society, 31 May 2017, Poster presentation
  Boise, USA, [International presentation]
• Learning algorithms adapted to the statistical structure of the social norms: By means of model fittings.
  Kita, T; Takezawa, M
  The 9th annual meeting of Human Behavior and Evolution Society of Japan, 10 Dec. 2016, Poster presentation
  Kanazawa, Japan, [Domestic Conference]
• From monetary to symbolic punishment: the evolution of punishment without the cultural group selection.
  Tsuchida, S; Takezawa, M
  The 9th annual meeting of Human Behavior and Evolution Society of Japan, 10 Dec. 2016, Oral presentation
  Kanazawa, Japan, [Domestic Conference]
• Contagion of cooperation in a group: Comparison of pay-it-forward and reputation-based indirect reciprocity
  Horita, Y; Takezawa, M; Kinjo, T; Nakawake, Y; Masuda, N
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• Experimental study on Bayesian rationality of correspondence bias
  Takezawa, M; Kikuchi, D; Umino, Y
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• The absence of evidence and inductive learning of social norms; Experimental approach
  Kita, T; Takezawa, M
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• From monetary to symbolic punishment: the evolution of punishment without the cultural group selection.
  Tsuchida, S; Takezawa, M
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• Majority rule by selected members: theoretical investigation with computer simulation
  Nakawake, Y; Takezawa, M
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• The progress of scientific discovery by cultural transmission: An experimental investigation
  Suyama, M; Takezawa, M
  The 57th Annual meeting of the Japanese Society for Social Psychology, 17 Sep. 2016, Oral presentation
  Nishinomiya, Japan, [Domestic Conference]
• Pathogen stress, institutions, and collectivistic / individualistic forms of cooperation.
  Horita, Y; Takezawa, M
  The 23rd Congress of the International Association for Cross-Cultural Psychology, 30 Jul. 2016, Oral presentation
  Nagoya, Japan, [International presentation]
• Cultural Evolution in Laboratory: Understanding the Micro-Foundations of Convergent and Divergent Cultural Evolution
  Takezawa, M
  The 23rd Congress of the International Association for Cross-Cultural Psychology, 30 Jul. 2016, Oral presentation
  Nagoya, Japan, [International presentation]
• Testing the logical validity of the concept of relational mobility through agent-based computer simulations.
  Tsuchida, S; Yuki, M; Takezawa, M
  The 23rd Congress of the International Association for Cross-Cultural Psychology, 30 Jul. 2016, Poster presentation
  Nagoya, Japan, [International presentation]
• Transient nature of pay-it-forward reciprocity
  Horita, Y; Takezawa, M; Kinjo, T; Nakawake, Y; Masuda, N
  The 31st International Congress of Psychology, 24 Jul. 2016, Oral presentation
  Yokohama, Japan, [International presentation]
• Thinking the roles of independence and interdepence of the wisdom of crowds
  Takezawa, M
  The 31st International Congress of Psychology, 24 Jul. 2016, Oral presentation
  Yokohama, Japan, [International presentation]
• Do people learn social rules like children learn grammars?: Experimental tests of learning algorithms in the domain of social norms.
  Kita, T; Takezawa, M
  The 31st International Congress of Psychology (ICP2016), 24 Jul. 2016, Poster presentation
  Yokohama, Japan, [International presentation]
• Contagion of cooperation in a donation game played on chain networks
  Horita, Y; Takezawa, M; Kinjo, T; Nakawake, Y; Masuda, N
  International School and Conference on Networks Science, 30 May 2016, Oral presentation
  Seoul, Korea, [International presentation]
• Conceptual investigation of relational mobility using agent-based models
  Tsuchida, S; Yuki, M; Takezawa, M
  The 56th Annual meeting of the Japanese Society of Social Psychology, 31 Oct. 2015, Oral presentation
  Tokyo, Japan, [Domestic Conference]
• Agent detection and perception of transcendental existence: Invesigation with memory recall tests
  Suyama, M; Takezawa, M
  The 56th Annual meeting of the Japanese Society of Social Psychology, 31 Oct. 2015, Oral presentation
  Tokyo, Japan, [Domestic Conference]
• Comparing group decision rules in multiattritute choice problems
  Nakawake, Y; Takezawa, M
  The 56th Annual meeting of the Japanese Society of Social Psychology, 31 Oct. 2015, Oral presentation
  Tokyo, Japan, [Domestic Conference]
• When is majority superior than the best member?: Investigation with computer simulations controlling for the ability and the correlation of judgments among group members
  Nakawake, Y; Takezawa, M
  The 79th Annual Convention of the Japanese Psychological Association, 22 Sep. 2015, Oral presentation
  Nagoya, Japan, [Domestic Conference]
• Testing logical validity of the concept of relational mobility by agent-based computer simulations
  Tsuchida, S; Takezawa, M
  The 16th International Conference on Social Dilemmas, 23 Jun. 2015, Poster presentation
  [International presentation]
• Neural Mechanisms Underlying Indirect Reciprocity: Empathy and Reward Calculation
  Takezawa, M; Watanabe, T; Nakawake, Y; Kunimatsu, S; Yamasue, H; Nakamura, M; Miyashita, Y; Masuda, N
  The 16th International Conference on Social Dilemmas, 23 Jun. 2015, Oral presentation
  Hong Kong, [International presentation]
• Testing logical validity of the concept of relational mobility by agent-based computer simulations
  Tsuchida, S; Takezawa, M
  The 27th Annual Meeting of Human Behaviour and Evolution Society, 27 May 2015, Poster presentation
  [International presentation]
• Neural Mechanisms Underlying Indirect Reciprocity: Emotion and Reward Calculation
  Takezawa, M; Watanabe, T; Nakawake, Y; Kunimatsu, S; Yamasue, H; Nakamura, M; Miyashita, Y; Masuda, N
  The 27th Annual Meeting of Human Behaviour and Evolution Society, 27 May 2015, Oral presentation
  Columbia, MO, USA, [International presentation]
• Functions of leadership in punishment
  Horita, Y; Takezawa, M; Yamamoto, H; Kamura, K; Suyama, M
  The 8th annual meeting of Human Behavior and Evolution Society of Japan, 15 Feb. 2015
  Hayama, Japan, [Domestic Conference]
• Domain generality of dispositional optimism
  Izawa, F; Takezawa, M
  The 23rd Annual Meeting of Japanese Society of Personaliy Psychology, 04 Oct. 2014, Poster presentation
  Kofu, Yamanashi (Japan), [Domestic Conference]
• Two distinct neural mechanisms underlying indirect reciprocity: Empathy and reward calculation
  Takezawa, M
  The 78th Annual Convention of the Japanese Psychological Association, 10 Sep. 2014, Nominated symposium
  Kyoto-city, Kyoto (Japan), [Domestic Conference]
• Collectivism, pathogen, and institution: Approach from theory of trust
  Horita, Y; Takezawa, M
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• Cultural evolution as the multimodal fitness landscape
  Nakawake, Y; Takezawa, M
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• Neural basis of indirect reciprocity: Empathy and reward calculation
  Takezawa, M; Watanabe, T; Nakawake, Y; Kunimatsu, S; Yamasue, H; Nakamura, M; Miyashita, Y; Masuda, N
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• Anchoring-and-adjustment during mental states inference.
  Ishii, T; Takezawa, M; Tateno, T
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• The selection of technology by cultural transmission: An experimental reexamination
  Suyama, M; Takezawa, M
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• The perception of being having mind and cooperative behaviour
  Kamura, K; Horita, Y; Takezawa, M
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• The relationship between dispositional optimism and optimistic explanatory style: Reexamination from a perspective of construal level theory
  Izawa, F; Takezawa, M
  The 55th Annual meeting of the Japanese Society of Social Psychology, 26 Jul. 2014, Poster presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• Self-projection as anchoring-and-adjustment processes.
  Ishii, T; Takezawa, M; Tateno, T
  The 36th Annual Meeting of the Cognitive Science Society, 23 Jul. 2014, Poster presentation
  Quebec City (Canada), [International presentation]
• Transmission infidelity and cumulative cultural evolution (1): Theoretical demonstration
  Takezawa, M; Nakawake, Y
  The Annual Conference of the European Human Behaviour and Evolution Association 2014, 06 Apr. 2014, Poster presentation
  Bristol (UK), [International presentation]
• Two Cultural Selection Pressures Underlying Technological Evolution
  Suyama, M; Takezawa, M
  The Annual Conference of the European Human Behaviour and Evolution Association 2014, 06 Apr. 2014, Poster presentation
  Bristol (UK), [International presentation]
• Transmission infidelity and cumulative cultural evolution (2): Computer Simulations
  Nakawake, Y; Takezawa, M
  The Annual Conference of the European Human Behaviour and Evolution Association 2014, 06 Apr. 2014, Poster presentation
  Bristol (UK), [International presentation]
• Experimental Comparison of Three Types of Reciprocity
  Kamura, K; Takezawa, M
  The Annual Conference of the European Human Behaviour and Evolution Association 2014, 06 Apr. 2014, Poster presentation
  Bristol (UK), [International presentation]
• Pathogen stress and collectivistic institutions governing cooperation.
  Horita, Y; Takezawa, M
  The Annual Conference of the European Human Behaviour and Evolution Association 2014, 06 Apr. 2014, Oral presentation
  Bristol (UK), [International presentation]
• The relationship between drawing of eyes and pro-sociality
  Horita, Y; Kamura, K; Nakawake, Y; Takezawa, M
  6th Annual meetings of Human Behavior & Evolution Society of Japan, 07 Dec. 2013, Poster presentation
  Hiroshima city, Hiroshima (Japan), [Domestic Conference]
• Transmission infidelity and cumulative cultural evolution (2): Computer simulations
  Nakawake, Y; Takezawa, M
  6th Annual meetings of Human Behavior & Evolution Society of Japan, 07 Dec. 2013, Oral presentation
  Hiroshima city, Hiroshima (Japan), [Domestic Conference]
• Transmission infidelity and cumulative cultural evolution (1): Theoretical background
  Takezawa, M; Nakawake, Y
  6th Annual meetings of Human Behavior & Evolution Society of Japan, 07 Dec. 2013, Oral presentation
  Hiroshima city, Hiroshima (Japan), [Domestic Conference]
• Limitation and Goal: Two Selections in Technological Evolution
  Suyama, M; Takezawa, M
  6th Annual meetings of Human Behavior & Evolution Society of Japan, 07 Dec. 2013, Poster presentation
  Hiroshima city, Hiroshima (Japan), [Domestic Conference]
• Three kinds of reciprocity -study negative reciprocity by the scene assumption method-
  Kamura, K; Takezawa, M
  6th Annual meetings of Human Behavior & Evolution Society of Japan, 07 Dec. 2013, Poster presentation
  Hiroshima city, Hiroshima (Japan), [Domestic Conference]
• The reason of third-party punishment: reputation and behavioral modification
  Horita, Y; Takezawa, M
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• The true reason of superiority of majority over the prominent dictator
  Nakawake, Y; Takezawa, M
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• The truth-in-advertising law and complete-gacha game: Testing psychological validity of law
  Takezawa, M; Kato, S; Nakawake, H; Suyama, M; Fujiyama, N
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• Anchoring and adjustment in mindreading: Detecting projection strategy with reaction time
  Ishii, T; Takezawa, M; Tateno, T
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• Selection Towards Simplicity in Cultural Evolution: Experimental Check
  Suyama, M; Takezawa, M
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• Study the adaptive base of pay it forward by the scene assumption method
  Kamura, K; Takezawa, M
  The 54th Annual Meeting of the Japanese Society of Social Psychology, 02 Nov. 2013, Oral presentation
  Ginowan-shi, Okinawa (Japan), [Domestic Conference]
• Anatomy of cooperative society: Social dynamics driven by individual differences
  Takezawa, M
  The 22th Japan Society of Personality Psychology Annual Meeting, 12 Oct. 2013, Nominated symposium
  Nagareyama-shi, Chiba (Japan), [Domestic Conference]
• Best Member vs. Majority: Inferring the Best Member from past records
  Nakawake, Y; Takezawa, M
  The 77th Annual Convention of the Japanese Psychological Association, 19 Sep. 2013, Poster presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• Two strategies in mindreading: Examination of the similarity contingency model with reaction time
  Ishii, T; Takezawa, M
  The 30th Annual Meeting of the Japanese Cognitive Science Society, 12 Sep. 2013, Poster presentation
  Machida city, Tokyo (Japan), [Domestic Conference]
• Mental process of mindreading: Self and stereotype as anchors in mental state inference
  Ishii, T; Takezawa, M
  The 35th Annual Meeting of the Cognitive Science Society, 31 Jul. 2013, Poster presentation
  Berlin (Germany), [International presentation]
• The relationship between pathogen prevalence and the solution to free-rider problems
  Horita, Y; Takezawa, M
  The 25th Annual Meeting of the Human Behavior and Evolution Society, 17 Jul. 2013, Poster presentation
  Miami, Florida (USA), [International presentation]
• The effect of cues of watching on altruistic behavior and moral judgement: the relationship with belief of reciprocity
  Horita, Y; Takezawa, M
  The 60th Annual Meeting of the Japanese Group Dynamics Association, 14 Jul. 2013, Oral presentation
  Sapporo, Hokkaido (Japan), [Domestic Conference]
• The relationship between the pathogen prevalence and human relationship
  Horita, Y; Takezawa, M
  The 5th Annual Meeting of Human Behavior and Evolution Society of Japan, 01 Dec. 2012, Poster presentation
  Meguro-ku, Tokyo (Japan), [Domestic Conference]
• Do the best-member outperform the majority?: Comparison of the strategies in where the best member needs to be estimated from past performances of group members
  Nakawake, Y; Takezawa, M
  The 5th Annual Meeting of Human Behavior and Evolution Society of Japan, 01 Dec. 2012, Poster presentation
  Meguro-ku, Tokyo (Japan), [Domestic Conference]
• Can cumulative cultural evolution be reproduced in the laboratory experiments?
  Takezawa, M; Suyama, M
  The 5th Annual Meeting of Human Behavior and Evolution Society of Japan, 01 Dec. 2012, Oral presentation
  Meguro-ku, Tokyo (Japan), [Domestic Conference]
• Testing the validity of an evolutionary game theoretical model of upstream indirect reciprocity: Vignet study
  Kamura, K; Takezawa, M
  The 5th Annual Meeting of Human Behavior and Evolution Society of Japan, 01 Dec. 2012, Poster presentation
  Meguro-ku, Tokyo (Japan), [Domestic Conference]
• Religion and moral judgement: The effect of belief about reciprocity on moral judgement
  Horita, Y; Murai, K; Takezawa, M
  The 53rd Annual Meeting of the Japanese Society of Social Psychology, 17 Nov. 2012, Oral presentation
  Tsukuba-shi, Ibaraki (Japan), [Domestic Conference]
• Is cumulative cultural evolution be replicable in laboratory?
  Takezawa, M; Kato, S; Suyama, M; Hirayama, K; Takano, N; Murasawa, I
  The 53rd Annual Meeting of the Japanese Society of Social Psychology, 17 Nov. 2012, Oral presentation
  Tsukuba-shi, Ibaraki (Japan), [Domestic Conference]
• Influences of physiological arousal on the feeling of spreading rumors of others
  Hasegawa, Y; Takezawa, M
  The 53rd Annual Meeting of the Japanese Society of Social Psychology, 17 Nov. 2012, Poster presentation
  Tsukuba-shi, Ibaraki (Japan), [Domestic Conference]
• Comparisons of behavioral strategies in two different indirect reciprocity settings
  Nakawake, Y; Masuda, N; Nakamura, M; Watanabe, T; Takezawa, M
  The 53rd Annual Meeting of the Japanese Society of Social Psychology, 17 Nov. 2012, Oral presentation
  Tsukuba-shi, Ibaraki (Japan), [Domestic Conference]
• Social projection as a universal strategy for mental state inference: Cultural difference in stereotyping
  Ishii, T; Takezawa, M
  The 53rd Annual Meeting of the Japanese Society of Social Psychology, 17 Nov. 2012, Oral presentation
  Tsukuba-shi, Ibaraki (Japan), [Domestic Conference]
• Testing soothing function of social sharing of anger emotion
  Hasegawa, Y; Takezawa, M
  The 21th Japan Society of Personality Psychology Annual Meeting, 06 Oct. 2012, Poster presentation
  Matsue City, Shimane (Japan), [Domestic Conference]
• The relationship between risk preferences and cooperation in social dilemma
  Horita, Y; Takezawa, M
  The 59th Annual Meeting of the Japanese Group Dynamics Association, 22 Sep. 2012, Oral presentation
  Kyoto-city, Kyoto (Japan), [Domestic Conference]
• The co-evolution between the pathogen prevalence and concern about evaluation: The secondary analysis using survey data
  Horita, Y; Takezawa, M
  The 76th Annual Convention of the Japanese Psychological Association, 11 Sep. 2012, Poster presentation
  Kawasaki, Kanagawa (Japan), [Domestic Conference]
• Investigating types of communicable emotional experiences: From the viewpoint of functional role of emotion for spreading rumors
  Hasegawa, Y; Takezawa, M
  The 76th Annual Convention of the Japanese Psychological Association, 11 Sep. 2012, Poster presentation
  Kawasaki, Kanagawa (Japan), [Domestic Conference]
• Testing the elderly priming effect with the double-blind method
  Nakawake, Y; Takezawa, M
  The 76th Annual Convention of the Japanese Psychological Association, 11 Sep. 2012, Poster presentation
  Kawasaki, Kanagawa (Japan), [Domestic Conference]
• Why is the evolution of altruism regarded as a challenging problem?: An answer from the evolutionary game theory
  Takezawa, M
  The 76th Annual Convention of the Japanese Psychological Association, 11 Sep. 2012, Nominated symposium
  Kawasaki, Kanagawa (Japan), [Domestic Conference]
• Social projection as a universal strategy in mental state inference: Cultural differences in utilization of stereotyping
  Ishii, T; Takezawa, M
  The 34th Annual Meeting of the Cognitive Science Society, 01 Aug. 2012, Poster presentation
  Sapporo, Hokkaido (Japan), [International presentation]
• Do implicit cue of monitoring induce third-party punishment towards norm-violators?
  Horita, Y; Takezawa, M
  The 24th Annual Meeting of the Human Behavior and Evolution Society, 13 Jun. 2012, Oral presentation
  Albuquerque, New Mexico (USA), [International presentation]
• Computational model of social judgment: Does self knowledge really influence the response time in trait judgment of others?
  Ishii, T; Takezawa, M
  The 13th Annual Meeting of the Society for Personality and Social Psychology, 26 Jan. 2012, Poster presentation
  San Diego, California (USA), [International presentation]
• Natural pedagogy in adults: Effects of attentions in transmission of generic knowledge of objects
  Kawano, A; Takezawa, M
  Workshop on social psychological science: What is necessary now in social neuroscience, 06 Oct. 2011, Poster presentation
  Okazaki, Japan, [Domestic Conference]
• Natural pedagogy in adults: Effects of attentions in transmission of generic knowledge of objects
  Kawano, A; Takezawa, M
  The 52nd Annual Meeting of Japanese Society of Social Psychology, 18 Sep. 2011, Poster presentation
  Nagoya, Japan, [Domestic Conference]
• 社会的判断の計算論モデル：「自己表象の干渉効果」を説明する
  Ishii, T; Takezawa, M
  The 52nd Annual Meeting of Japanese Society of Social Psychology, 18 Sep. 2011, Oral presentation
  Nagoya, Japan, [Domestic Conference]
• When the best member outperforms the majority (2): Experimental Analyses
  Nakawake, Y; Takezawa, M
  The 52nd Annual Meeting of Japanese Society of Social Psychology, 18 Sep. 2011, Oral presentation
  Nagoya, Japan, [Domestic Conference]
• When the best member outperforms the majority (1): Theoretical analyses
  Takezawa, M; Nakawake, Y
  The 52nd Annual Meeting of Japanese Society of Social Psychology, 18 Sep. 2011, Oral presentation
  Nagoya, Japan, [Domestic Conference]
• Indirect Reciprocity with the Information Recalled From the Memory: Experimental Studies
  Takezawa, M
  The 23rd annual meetings of the Human Behavior and Evolution Society, 29 Jun. 2011, Oral presentation
  Montpellier, France, [International presentation]
• Adaptive Toolbox of "Who” Strategies in Social Learning
  Takezawa, M
  The 6th Conference of the European Evolution and Human Behaviour Association, 24 Mar. 2011, Oral presentation
  Gie?en, Germany, [International presentation]
• Indirect Reciprocity with the Information Recalled From the Memory: Experimental Studies
  Takezawa, M
  The 3rd annual meeting of Human Behavior and Evolution Society of Japan, 04 Dec. 2010, Oral presentation
  Kobe, Japan, [Domestic Conference]
• Adaptive Toolbox in social decision making
  Takezawa, M
  The 51st Annual Meeting of Japanese Society of Social Psychology, 17 Sep. 2010, Oral presentation
  Hiroshima, Japan, [Domestic Conference]

• 卒業論文, 2024年, 学士課程, 文学部
• 大学院共通授業科目（教育プログラム）：人間知・脳・AI教育プログラム, 2024年, 修士課程, 大学院共通科目
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• Cultural Evolution Society
• Human Behaviour and Evolution Society
• European Human Behaviour and Evolution Association
• Human Behaviour and Evolution Society of Japan
• Japanese Psychological Association
• Japanese Society of Social Psychology
• Cognitive Science Society
• Society for Personality and Social Psychology

• Can children transmit healthy and sustainable eating preferences to their parents? Joining health psychology and cultural evolutionary theory to explore new avenues in cultural transmission
  Bilateral Programs (Research Seminars)
  2023 - 2023
  Masanori Takezawa, Jutra Mata
  Japanese Society for the Promotion of Sciences, Hokkaido University, Principal investigator, JPJSBP220233601
• Internally superimposed selves: Developing a new research in collaboration between philosophy and empirical science
  The Topic-Setting Program to Advance Cutting-Edge Humanities and Social Sciences Research
  01 Oct. 2017 - 01 Sep. 2022
  Masanori Takezawa
  Japanese Society for the Promotion o Sciences, Principal investigator, Competitive research funding
• Constructive Understanding of the Origin and Evolution of Language
  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
  30 Jun. 2017 - 31 Mar. 2022
  橋本 敬; 鈴木 麗璽; 竹澤 正哲; 萩原 良信; 有田 隆也; 金野 武司; 我妻 広明; 笹原 和俊
  A）階層生成と意図共有の進化
  霊長類・ヒト幼児の行動と道具進化について、再帰的結合が持つ適応性（製作物と制作方法を多様化させる）の観点で検討を進めた（A01・B02と連携）。再帰に関わる脳構造を元にイメージの再帰的結合の進化・学習モデルを構築・分析した（A01・B01と連携）。複雑な形質が相互作用する個体・社会学習の進化モデルを調べ、個体の認知能力に関する遺伝的同化による安定した適応進化と、学習を伴う他個体とのコミュニケーションで生じる多様な適応形質が集団の適応性をもたらすことを示唆した。
  B）相互作用を通したコミュニケーション創発プロセス
  字義通りの意味・言外の意味の理解の循環構造を持つ計算モデルにより、他者の記号・行動を模倣する仕組みが意図共有を進めることを確認した。言語の構造的特徴の創発を言語進化実験で検討し、個人が繰り返し対象を記憶再生する条件よりも、個人間で情報が伝達される繰り返し学習条件のほうが、刺激系列の階層性と構造化がより強く進むことを見出した。これは構造の創発に伝達が本質的な役割を果たすことを強く示唆する。個体内での概念形成と個体間での記号コミュニケーションをマルチエージェントで共有する知識としてモデル化した確率的生成モデルと推論アルゴリズムにより、実世界で物体や状況を他者と共有しつつ記号を獲得しその知識を多体間で共有するプロセスを実現しその有効性を確かめた。
  C）言語の文化進化
  フェイクニュースはオンライン・コミュニケーションで過度な意図共有を促す言語であり、そうでないものと、品詞、伝聞形か否か、感情やモラル、情報拡散の社会ネットワーク構造に違いがあるという言語の文化進化の性質をSNSデータより明らかにした。英語のBE完了形からHAVE完了形へ文法規則の交替が19世紀半ばに起きたことをコーパス分析で示し、階層性進化の手がかりを得た（A01と連携）。
  Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Japan Advanced Institute of Science and Technology, 17H06383
• Understanding cognitive, neural and ecological bases of human collective behavior
  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (S)
  31 May 2016 - 31 Mar. 2021
  亀田 達也; 坂上 雅道; 伊澤 栄一; 竹澤 正哲; 小川 昭利; 大槻 久; 犬飼 佳吾
  (a) 種間比較実験、同期化に関する神経・生理実験： カラス飼育群を用い、２個体間の攻撃交渉に関する数理モデル（Winner-Loser効果）データで，集団レベルの攻撃交渉ネットワーク実測値を説明できるか調べた。同モデルはオス間ネットワークを説明でき，上位オスの攻撃によって維持されていることが示唆された。また、外界刺激に対する精神物理的判断がペア間でどのように同期するのかについて強化学習によるモデル化と、認知・神経的機序についてfMRI実験による検討を行った。他者と競合する場面での意思決定における脳活動計測において、右側頭頭頂接合部が他者の存在の認識に関わり、左側頭頭頂接合部は他者が自分の選択を予測することの認識を反映することを明らかにした。
  (b) 理論モデル： 集団が知識を獲得する際、個体学習のコストを誰が支払うかという社会的ジレンマが存在する。そこで集団内の個体間順位に着目し数理モデルを作成して調べたところ、劣位個体が個体学習を行う解が進化的に安定になることを発見した。
  (c) 協力・分配規範の発生と変容に関する集団実験：公共財ゲーム場面において罰の導入がどのような効果をもたらすのか、協力規範に対するCrowding Outの観点から大規模集団実験により検討した。罰と繰り返しのある公共財問題ゲームにおける行動の個人差を階層的強化学習モデルによって定量化した。社会的選好を取り入れたエージェントの振る舞いを表現するための効用関数測定法を検討するとともに、効用関数のタイプの多様性を取り入れた実験モデルを構築した。社会的価値志向性課題を使って、一卵性双生児と二卵性双生児の社会行動傾向について検討した。
  (d) 研究成果の公刊と国際ワークショップの開催： 研究成果を国際誌を中心に公刊するとともに、国内外の学会で発表した。社会的意思決定をめぐる国際ワークショップを開催した。
  Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (S), The University of Tokyo, 16H06324
• Inductive learning, and the evolution and maintenance of social norms
  Grants-in-Aid for Scientific Research (B)
  Apr. 2017 - Mar. 2021
  Masanori Takezawa
  Japanese Society for the Promotion o Sciences, Principal investigator, Competitive research funding
• Interdisciplinary study on cultural-evolutional bases of conflict and cooperation
  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
  18 Jul. 2017 - 31 Mar. 2020
  Ohira Hideki
  The cultural group selection hypothesis argues that conflicts between groups in human history developed cooperative tendency in humans. We examined this hypothesis through various approaches and acquired the following findings: 1. We indicated that tendencies of social conformity and norm-dependence are related to a tendency of risk avoidance. Additionally we showed neural bases of the psychological traits. 2. We developed an experimental task which can examine inter-group social dilemma, and showed that ingroup-love and outgroup-hate in Japanese population are mediated by a trait of sociality. In addition, we expolred neural bases of this phenomenon. 3. We explored evolutional factors of inter-group cooperation through observation studies of groups of animal baboons by GPS. 4. We theoretically examined cooperation to others and aggression to others by using computer simulation.
  Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Nagoya University, 17KT0001
• Cultural group selection and the evolution of social norms: Studies with large-size group experiments and the analyses of macro-level data
  Fund for the Promotion of Joint International Research (Fostering Joint International Research)
  Mar. 2019 - Mar. 2020
  Masanori Takezawa
  Cultural group selection is a theoretical framework that explains the large-scale cooperation unique to human society by focusing on the human’s unique capacity of sophisticated social learning. Empirical researchers have not thoroughly examined the theory consisting of a group of formal theoretical models. In this study, we tested the validity of the logic of cultural group selection through a large-scale group experiment and analysis of large-scale cross-cultural data. As a result of the experiments and data analyses using Bayesian statistical models, we found that strategies that benefit the group diffuse across group boundaries in the same process as predicted by the theory.
  Japanese Society for the Promotion o Sciences, Fund for the Promotion of Joint International Research (Fostering Joint International Research), Hokkaido University, Principal investigator, Competitive research funding, 17KK0060
• Exploration for cognitive foundations of scientific discovery
  Grants-in-Aid for Challenging Exploratory Research
  2015 - 2017
  Masanori Takezawa
  Science is a highly organized system of knowledge and information which gradually develops through the processes of cumulative cultural evolution. In this study, we focused on the experimental tasks employed in the studies on scientific discovery and collaborative learning in cognitive science. These tasks mimic the real world problems scientists face in their work, and it is challenging for a single individual to find a correct answer. Using these tasks, we clarified micro-level processes how information and knowledge are transmitted across generations, are transformed within a generation and progressively change to sophisticated levels.
  Japanese Society for the Promotion o Sciences, 挑戦的萌芽研究, 北海道大学, Principal investigator, Competitive research funding, 15K13111
• Environmental structure and architecture of the mind that produce cumulative cultural evolution
  Grants-in-Aid for Scientific Research (B)
  2013 - 2015
  Masanori Takezawa
  人間を他の動物から区別する最大の特徴ーそれは文化の存在である。人間が持つ言語やシンボル、技術、数学や科学などの知識体系は世代から世代へと伝達される中で漸進的に改良され、個人の力では生み出すことが不可能なレベルまで進化した。これが累積的文化進化（cumulative cultural evolution）と呼ばれる現象である。近年、言語学から心理学に渡る広い領域で人間を対象とした実験室実験によって累積的文化進化のプロセスを再現し、人間だけが持つ文化の本質を実験的に探求する領域横断的な営みが展開されつつある。本年度は、コンピュータ・シミュレーションと実験室実験の両方を通じて、文化が累積的に進化するために必要な認知能力を検討した。
  Japanese Society for the Promotion o Sciences, 基盤研究(B), 北海道大学, Principal investigator, Competitive research funding, 25285176
• Reputation: Cognitive foundation of the social order
  Grants-in-Aid for Challenging Exploratory Research
  2012 - 2014
  Masanori Takezawa
  一般的に他者に協力しない人は「利己的な悪い人だ」と人々から評価されるだろう。だが、他人に協力したことがない利己的な人から 協力を求められてその依頼を断った場合、我々はその人物をどのように評価するだろう。利己的な人間に協力しない人間は「良い人だ 」という評判を得るのだろうか?それとも「誰であれ協力を求められているのに協力しない人間は悪い人だ」という評判を得るのだろ うか?人間社会における秩序や協力の存在を説明する上で、評判という仕組みが重要な役割を果すことは繰り返し指摘されてきた。だ が、実際に人々がどのように評判を形成し共有していくのか、マイクロな認知レベルでの実証的な研究はあまりない。本研究の目的は 、評判という、協力的な社会を支えるための認知的基盤を実証的に探求することにある。本年度は2種類の異なる間接互恵性に注目し複数の実験を実施した。その結果、評判型間接互恵は1次の情報しか存在しない場合でも頑健に観察されるのに対し、恩送り型間接互恵は非常にもろく不安定であることを見出した。またMRI実験により、2つの間接互恵性の神経基盤を検討した。
  Japanese Society for the Promotion o Sciences, 挑戦的萌芽研究, 上智大学->北海道大学, Principal investigator, Competitive research funding, 24653166
• Development of adaptive toolbox approach in social learning
  Grants-in-Aid for Young Scientists (A)
  2011 - 2012
  Masanori TAKEZAWA
  Research on social learning revealed that people utilize multiple strategies. This research adopts theframework of adaptive toolbox developed by Gigerenzer , T odd & the ABC research group (1999)on this problem. The basic idea is that depending on the environments, different strategy becomesmore adaptive than the others and people selectively use a strategy that is adaptive in the givensituation. In this research, we focused on two representative social learning strategies; majoritystrategy and the best member strategy . Through a series of theoretical and empirical studies, wefound that the best member often outperforms the majority . However , as is often the case, when it isdifficult to identify the true best member , the majority strategy performs relatively better than thebest member strategy . People seem to switch from the majority to the best member strategy onlywhen a reliaermation indicating who the real best member is obtained.
  Ministry of Education, Culture, Sports, Science and Technology, 若手研究(A), 上智大学->北海道大学, Principal investigator, Competitive research funding, 23683011
• Adaptive toolbox in social learning
  Grants-in-Aid for Research Activity Startup
  2010 - 2011
  Masanori Takezawa
  これまでに経験したことがない新しい問題に直面したとき、人はしばしば他者からアドバイスを受ける正しい解を得ようとする。こうした、社会的な情報に基づく意思決定(社会学習とも呼ばれる)において、人々が用いる戦略として、多数派同調戦略とベスト・メンバー戦略がある。本研究の目的は、環境構造に応じて人々が適応的に2つの戦略を使い分けていることを実証する事にある。本年度は、2つの実験と1つのコンピュータ・シミュレーション研究を実施した。コンピュータ・シミュレーション研究を通じて、本研究の出発点となったKamedaとその同僚による一連の理論研究では、重要なパラメータ領域が恣意的に制約されていたこと、また、そのために「ほぼ全ての状況において多数派同調戦略がベスト・メンバー戦略の成績を凌駕する」というKamedaらの主張には重大な瑕疵があることが明らかとなった。1つの実験研究では、本年度に実施したコンピュータ・シミュレーション研究の前提の妥当性を検証した。また、もう1つの実験研究では、場面想定法を用いて、人々の判断の相関が高い場面では、多数派よりも少数の有能な専門家の意見に影響されやすいとする仮説を検証した。
  Japanese Society for the Promotion o Sciences, 研究活動スタート支援, 上智大学, Principal investigator, Competitive research funding, 22830083
• Research on adaptive concession making strategies in negotiation and its social consequences
  Grant-in-Aid for JSPS Fellows
  Apr. 2002 - Aug. 2004
  TAKEZAWA Masanori
  本研究の目的は、交渉に関する理論的枠組みとして、適応的譲歩戦略という枠組みが有効であることを示すことである。昨年度は、コンピュータ・シミュレーションを実施し、本研究の主張する枠組みが、Ohtsubo ＆ Kameda(1996),Emerson, Cook, Gilmore ＆ Yamagishi(1983)らの実験で得られた交渉結果を説明するうえで、きわめて有望な枠組みであることを、理論的にデモンストレートした。本年度は、昨年行われたコンピュータ・シミュレーションから導出された命題を検証するために、実際の人間を用いて、行動実験を実施した。昨年の研究では、Ohtsubo ＆ Kameda(1996)で見出された、不完全情報下での交渉実験における功利主義的平等の達成は、「良き交渉者」と名づけられた戦略を人々が採用していることで可能となっていることが、理論的に示唆された。本年度に実施した実験では、実験室における参加者の交渉過程を観察することで、人々がこの「良き交渉者」戦略を実際に用いているのか検討された。実験の結果は、上記のアイデアを支持するものであり、多くの被験者が、「良き交渉者」戦略に従って、資源分配をめぐる交渉を行っていたことが観察された。昨年の結果とあわせ、本実験に基づいた英語論文を執筆し、現在投稿中である。また、本年度は、交渉過程において重要な役割を果たす、社会的動機についても実証的検討をおこなった。社会的動機に関する実験の一部は昨年も実施されたが、本年度は新たな実験を実施し、これの成果に基づき、学会発表×1を行い、英語論文×1を執筆中である。特に、本年度は、社会的動機の発達過程にも注目し、児童を使った実験を行った。この研究成果に基づいて、学会発表×3をおこない、さらに、英語論文×1が投稿中である。
  Japanese Society for the Promotion o Sciences, 特別研究員奨励費, 北海道大学, Principal investigator, Competitive research funding, 02J00039
• Summer Institute in Behavioural Economics
  Selected participant
  Aug. 2003 - Aug. 2003
  TAKEZAWA Masanori
  University of Trento, Italy, Principal investigator, Competitive research funding
• Evolutionary social psychological investigations on the origin of property rights and resource sharing
  Grant-in-Aid for JSPS Fellows
  Apr. 1999 - Mar. 2001
  TAKEZAWA Masanori
  Japanese Society for the Promotion of Sciences, 特別研究員奨励費, 北海道大学, Principal investigator, Competitive research funding, 99J05573

• Ad-hoc Reviewer
  National Science Foundation (ad-hoc reviewer),
  European Science Foundation (grant reviewer),
  Adaptive Behavior,
  Asian Journal of Social Psychology,
  Developmental Psychology,
  Developmental Science,
  Evolution and Human Behavior,
  Field Methods,
  Frontiers in Artificial Intelligence,
  Frontiers in Psychology,
  Group Processes and Intergroup Relations,
  Human Nature,
  Japanese Psychological Research,
  Journal of Behavioral Decision Making,
  Journal of Evolutionary Psychology,
  Journal of Experimental Child Psychology,
  Journal of Experimental Psychology: General,
  Journal of Personality and Social Psychology: Attitudes and Social Cognition,
  Journal of Theoretical Biology,
  Letters on Evolutionary Behavioral Science,
  Nature Communications,
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  New Ideas in Psychology,
  Organizational Behavior and Human Decision Processes,
  Personality and Social Psychology Review,
  PLOS ONE,
  Progress in Asian Social Psychology,
  Rationality and Society,
  Research in Human Development,
  Scientific Reports,
  社会心理学研究,
  心理学研究,
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