Sakura Arai

Profile Information

Affiliation: Postdoctoral Researcher, The University of Tokyo

ORCID iD: https://orcid.org/0000-0002-0877-6175
J-GLOBAL ID: 202301002547557736
researchmap Member ID: R000053382

Research Interests

Research Areas

Papers

Willingness to protect from violence, independent of strength, guides partner choice

Barlev, M.*, Arai, S.*, Tooby, J., & Cosmides, L. (* indicates equal contribution.)

Evolution and Human Behavior, 46(6), Nov, 2025 Peer-reviewedLead author
The relationship between beliefs in conspiracy theories and behavioral trust : A secondary analysis

Japanese journal of social psychology, 39(2) 43-53, Nov, 2023 Peer-reviewed
Salivary Oxytocin Has Nonlinear Relationships with Trust and Reciprocity

Sakura Arai, Motoki Watabe, Kei Kanari, Qiulu Shou, Frank Krueger, Haruto Takagishi

Games, Feb 20, 2023 Peer-reviewedLead author
Why punish cheaters? Those who withdraw cooperation enjoy better reputations than punishers, but both are viewed as difficult to exploit

Sakura Arai, John Tooby, Leda Cosmides

Evolution and Human Behavior, 44(1) 50-59, Jan, 2023 Peer-reviewedLead author
Cross-cultural variation in cooperation: A meta-analysis.

Giuliana Spadaro, Caroline Graf, Shuxian Jin, Sakura Arai, Yukako Inoue, Eleanor Lieberman, Maria Isabela Rinderu, Mingliang Yuan, Caspar J. Van Lissa, Daniel Balliet

Journal of Personality and Social Psychology, Nov, 2022 Peer-reviewed
Motivations to reciprocate cooperation and punish defection are calibrated by estimates of how easily others can switch partners

Sakura Arai, John Tooby, Leda Cosmides

PLOS ONE, 17(4), Apr 19, 2022 Peer-reviewedLead author
Why the Wide Face? Androgen Receptor Gene Polymorphism does not Predict Men’s Facial Width-to-Height Ratio

Adar B. Eisenbruch, Aaron W. Lukaszewski, Zachary L. Simmons, Sakura Arai, James R. Roney

Adaptive Human Behavior and Physiology, 4(2) 138-151, Jun, 2018 Peer-reviewed
Testosterone promotes either dominance or submissiveness in the Ultimatum Game depending on players’ social rank

Yukako Inoue, Taiki Takahashi, Robert Burriss, Sakura Arai, Toshikazu Hasegawa, Toshio Yamagishi, Toko Kiyonari

Scientific Reports, 7(1), Jul 13, 2017 Peer-reviewed
Life history strategy and human cooperation in economic games

Junhui Wu, Daniel Balliet, Joshua M. Tybur, Sakura Arai, Paul A.M. Van Lange, Toshio Yamagishi

Evolution and Human Behavior, 38(4) 496-505, Jul, 2017 Peer-reviewed

Professional Memberships

Research Projects

Integrating partner choice and partner control in reciprocal cooperation: Examining psychological mechanisms and societal differences

Apr, 2024 - Mar, 2027

Sakura Arai
Design features that prevent costly errors in cheater detection: hypothesis testing from the partner choice framework

Grants-in-Aid for Scientific Research, Grant-in-Aid for Early-Career Scientists, Japan Society for the Promotion of Science, Apr, 2023 - Mar, 2026

Academic Activities

Reviewer in Evolution and Human Behavior, Japanese Psychological Research, Journal of Cross-Cultural Psychology

Peer review
Copy Editor in Letters on Evolutionary Behavioral Science

Planning, management, etc.

Profile Information

Research Interests

Research Areas

Papers

Professional Memberships

Research Projects

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