J-GLOBAL         Last updated: Mar 11, 2019 at 18:15
Keio University
Faculty of Letters
Job title
Associate Professor
Ph.D.(The University of Tokyo)
Research funding number
Twitter ID

Research Areas


Academic & Professional Experience

Apr 2015
Associate Professor, Faculty of Letters, Keio University
Apr 2014
Mar 2015
Associate Professor, Department of Psychology, Yasuda Women's University
Apr 2012
Mar 2014
Lecturer, Department of Psychology, Yasuda Women's University
Jan 2008
Mar 2012
Assistant Professor, Kokoro Research Center, Kyoto Univrsity
Oct 2004
Dec 2007
Assistant Professor, College of Arts and Sciences / Graduate School of Arts and Sciences, The University of Tokyo


Apr 1997
Sep 2001
Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo
Apr 1995
Mar 1997
College of Arts and Sciences, The University of Tokyo
Faculty of Liberal Arts, The University of Tokyo
Apr 1993
Mar 1995
College of Arts and Sciences, The University of Tokyo

Committee Memberships

The Japanese Cognitive Scitna Society  Steering Committee

Awards & Honors

Sep 2011
Factors affecting the formation of empathy: A gene- environment interaction model, Encouragement Paper award, The Japanese Society of Social Psychology
Sep 2007
Genetic and environmental influences on general trust: A test of a theor y of trust with behavioral genetic and evolutionar y psychological approaches, Excellent paper award, The Japanese Society of Social Psychology
Jun 1997
Human Universality: Evidence from Japan (1) Cognition Studies, 9th Annual Conference, Poster Award, Human Behavior and Evolution Society
Winner: Hasegawa, T., Hiraiwa-Hasegawa, M., & Hiraishi, K.

Published Papers

Asako Miura, Masashi Komori, Naohiro Matsumura, Kai Hiraishi
Emotion Studies   4(Si) 26-32   Mar 2019   [Refereed]
The present study explored social sharing of negative emotion on social media related to the 3.11 earth-
quake. A dataset was created from tweets that included one or more of the nuclear disaster at the Fukushima Daiichi Nuclear Power Plant (F1-NP...
Ryo Oda, Motoki Kato, Kai Hiraishi
Letters on Evolutionary Behavioral Science   9(2) 5-8   Aug 2018   [Refereed]
Prosocial lie is an interesting subject in evolutionary psychology because generosity toward others is sometimes inconsistent with adherence to norms. People use justification to tell a lie without threatening the positive self-concept. Previous s...
Hiraishi Kai
JAPANESE PSYCHOLOGICAL REVIEW   60(1) 111-115   Jul 2017   [Invited]
<p>Sometimes, we discriminate "sex differences" from "gender differences" implying that there are two types of differences between women and men: biologically based sex differences and socially constructed gender differences. One may even imply th...
Fiddick Laurence, Brase Gary L., Ho Ai Tee, Hiraishi Kai, Honma Atsushi, Smith Adam
JOURNAL OF RESEARCH IN PERSONALITY   62 6-18   Jun 2016   [Refereed]
池田 功毅, 平石 界
心理学評論   59(1) 3-14   2016   [Refereed]
Oda Ryo, Hiraishi Kai
The Japanese Journal of Personality   23(3) 193-196   2015   [Refereed]
We examined the effects of altruism in daily life and the Big Five personality traits on professional hospitality. A web-based survey was conducted with 208 participants (ages in the 20's to 50's) who have been engaged in hospitality industries. W...
Ando J, Fujisawa KK, Shikishima C, Hiraishi K, Nozaki M, Yamagata S, Takahashi Y, Ozaki K, Suzuki K, Deno M, Sasaki S, Toda T, Kobayashi K, Sugimoto Y, Okada M, Kijima N, Ono Y, Yoshimura K, Kakihana S, Maekawa H, Kamakura T, Nonaka K, Kato N, Ooki S
Twin research and human genetics : the official journal of the International Society for Twin Studies   16(1) 202-216   Feb 2013   [Refereed]
Oda R, Okuda A, Takeda M, Hiraishi K
Evolutionary psychology : an international journal of evolutionary approaches to psychology and behavior   12(5) 888-900   Oct 2014   [Refereed]
Hiraishi K, Shikishima C, Yamagata S, Ando J
Frontiers in psychology   6 373   Apr 2015   [Refereed]
Shikishima C, Hiraishi K, Yamagata S, Ando J, Okada M
Frontiers in psychology   6 1712   Nov 2015   [Refereed]
Naohiro Matsumura,Array,Masashi Komori,Kai Hiraishi
Tenth IEEE International Conference on Semantic Computing, ICSC 2016, Laguna Hills, CA, USA, February 4-6, 2016   465-470   2016   [Refereed]
Shikishima Chizuru, Hiraishi Kai, Takahashi Yusuke, Yamagata Shinji, Yamaguchi Susumu, Ando Juko
PERSONALITY AND INDIVIDUAL DIFFERENCES   121 140-146   Jan 2018   [Refereed]
Hiraishi K, Sasaki S, Shikishima C, Ando J
Archives of sexual behavior   41(3) 711-724   Jun 2012   [Refereed]
Oda Ryo, Kato Yuta, Hiraishi Kai
EVOLUTIONARY PSYCHOLOGY   13(3)    2015   [Refereed]
Nakamura Toshitake, Hiraishi Kai, Oda Ryo, Saito Atsuko, Sakaguchi Kikue, Ihobe Hiroshi, Kiyonari Toko, Takeda Mia, Hasegawa Toshikazu
The Japanese Journal of Personality   20(3) 233-235   Mar 2012   [Refereed]
This study developed a Japanese version of the Machiavellianism scale (Mach IV) and examined its reliability and validity. A questionnaire survey of university, junior college and vocational school students showed sufficient internal consistency a...
Ryo Oda, Ryo Oda, Kai Hiraishi, Yasuyuki Fukukawa, Akiko Matsumoto-Oda
Journal of Evolutionary Psychology   9 283-293   Dec 2011   [Refereed]
Possible effects of external and internal factors affecting prosociality in Japanese undergraduates were investigated. We employed social support as an external factor and helping norms, self-consciousness, other-consciousness, self-esteem, and re...
Oda Ryo, Yamauchi Shinsaku, Naganawa Takuya, Hiraishi Kai, Matsumoto-Oda Akiko
観光科学 = Journal of Tourism Sciences   3 23-33   Sep 2011
We examined usefulness of the prosocial behavior scale (Kikuchi, 1988) from a view of evolutionary cognitive science. Relationship between an actor and a recipient is important in evolutionary studies of altruistic behavior. The prosocial behavior...
Oda Ryo, Niwa Yuki, Honma Atsushi, Hiraishi Kai
EVOLUTION AND HUMAN BEHAVIOR   32(5) 372   Sep 2011   [Refereed]
Nakamura Toshitake, Moriya Jun, Hiraishi Kai, Hasegawa Toshikazu
The Japanese Journal of Personality   19(3) 278-280   Apr 2011   [Refereed]
This study investigated the construct validity of the Japanese version of the BIS/BAS scales. A dot-probe task was used, which examined the degree of attention to a fear-conditioned stimulus. The results showed that the BIS-points, which measure t...
Shikishima Chizuru, Hiraishi Kai, Yamagata Shinji, Sugimoto Yutaro, Takemura Ryo, Ozaki Koken, Okada Mitsuhiro, Toda Tatsushi, Ando Juko
INTELLIGENCE   37(3) 256-267   May 2009   [Refereed]
Oda Ryo, Machii Wataru, Takagi Shinpei, Kato Yuta, Takeda Mia, Kiyonari Toko, Fukukawa Yasuyuki, Hiraishi Kai
PERSONALITY AND INDIVIDUAL DIFFERENCES   56 206-209   Jan 2014   [Refereed]
Shikishima Chizuru, Hiraishi Kai, Yamagata Shinji, Neiderhiser Jenae M., Ando Juko
Oda R, Dai M, Niwa Y, Ihobe H, Kiyonari T, Takeda M, Kai H
Shinrigaku kenkyu : The Japanese journal of psychology   84(1) 28-36   Apr 2013   [Refereed]
Oda Ryo, Niwa Yuki, Honma Atsushi, Hiraishi Kai
EVOLUTION AND HUMAN BEHAVIOR   32(3) 166-171   May 2011   [Refereed]
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Sugimoto Yutaro, Murayama Kou, Ando Juko
INTELLIGENCE   39(2-3) 89-99   Mar 2011   [Refereed]
Japanese Journal of Social Psychology   26(3) 188-201   2011   [Refereed]
Factors contributing to individual differences of empathy were examined using behavioral genetics methodology. Data related to individual levels of empathy and parental warmth received during childhood were collected from approximately 450 pairs o...
Hiraishi Kai, Yamagata Shinji, Shikishima Chizuru, Ando Juko
EVOLUTION AND HUMAN BEHAVIOR   29(2) 79-85   Mar 2008   [Refereed]
Chizuru Shikishima, Kai Hiraishi, Juko Ando
Research in Social Psychology   22 48-57   Dec 2007   [Refereed]
With the twin method, we tested the theory of general trust. Among data collected on 1,040 twins, data from 328 pairs of identical twins and 103 pairs of same-sex fraternal twins were analyzed to examine genetic and environmental influences on the...
Oda Ryo, Hiraishi Kai, Matsumoto-Oda Akiko
EVOLUTION AND HUMAN BEHAVIOR   27(5) 366-380   Sep 2006   [Refereed]
Japanese Journal of Social Psychology   22(1) 48-57   2006   [Refereed]
With the twin method, we tested the theory of general trust. Among data collected on 1,040 twins, data from 328 pairs of identical twins and 103 pairs of same-sex fraternal twins were analyzed to examine genetic and environmental influences on the...
Kai Hiraishi, Kai Hiraishi, Kai Hiraishi, Juko Ando, Juko Ando, Yutaka Ono, Yutaka Ono, Toshikazu Hasegawa, Toshikazu Hasegawa
Psychologia   47 226-237   Dec 2004   [Refereed]
On the Wason selection task with the Sharing-rule, there are three major response patterns; 1) to select those cards that detect resource-provider's non-cooperation to in-group, 2) to select those cards that detect resource-provider's failure to e...
Hiraishi Kai
The bulletin of the Institute of Socio-Information and Communication Studies, the University of Tokyo   65 69-100   2003
認知科学 = Cognitive studies : bulletin of the Japanese Cognitive Science Society   9(4) 580-585   Dec 2002   [Invited]
Margie Wright, Eco D. Geus, Juko Ando, Michelle Luciano, Michelle Luciano, Danielle Posthuma, Yutaka Ono, Narelle Hansell, Narelle Hansell, Caroline Van Baal, Kai Hiraishi, Toshikazu Hasegawa, Glen Smith, Gina Geffen, Laurie Geffen, Shigenobu Kanba, Akira Miyake, Nick Martin, Dorret Boomsma
Twin Research   4 48-56   Feb 2001   [Refereed]
A multidisciplinary collaborative study examining cognition in a large sample of twins is outlined. A common experimental protocol and design is used in The Netherlands, Australia and Japan to measure cognitive ability using traditional IQ measure...
Kai Hiraishi, Kazusa Murasaki, Hiroyuki Okuda, Mami Yamate
Letters on Evolutionary Behavioral Science   7(1) 29-32   2016   [Refereed]


Teaching motivation and altruism: a Japanse twin study
Ando Juko, Hiraishi Kai
BEHAVIOR GENETICS   47(6) 692   Nov 2017
Replication crisis in social psychology: Why it happened and how we are confronting it.
理論心理学研究   18(1) 82-83   Mar 2017   [Invited]
Theory of mind and its relation to information superiority in reasoning : Investigation with the Amount guessing game
Tokita Mamino, Hiraishi Kai
INTERNATIONAL JOURNAL OF PSYCHOLOGY   51 579   Jul 2016   [Refereed]
Searching for a Peace of Mind: Experimental Explorations to Reduce Negative Biases towards Fukushima Products
Ikeda Koki, Nakanishi Daisuke, Yokota Kunihiro, Hiraishi Kai
INTERNATIONAL JOURNAL OF PSYCHOLOGY   51 338   Jul 2016   [Refereed]
Risk perception of radioactivity related risk factors: A web survey in Japan.
Hiraishi Kai, Nakanishi Daisuke, Yokota Kunihiro, Ikeda Koki
平石 界, 池田 功毅
生活協同組合研究   (480) 26-34   Jan 2016   [Invited]
Miura Asako, Toriumi Fujio, Komori Masashi, Matsumura Naohiro, Hiraishi Kai
Transactions of the Japanese Society for Artificial Intelligence   31(1) NFC-A_1-9   Jan 2016
In this article, we investigate "retweeting in Twitter" or information transfer behavior in social media to figure out some characteristics of our information processing behavior in emergency situation from social psychological perspective. We mad...
Development and education of formal and informal logical thinking ability: A Japanese twin study
Yamagata Shinji, Shikishima Chizuru, Hiraishi Kai, Ando Juko
BEHAVIOR GENETICS   43(6) 549   Nov 2013   [Refereed]
Genetic overlapping among intelligence, educational attainment, occupational status, marriage, and having children: Japanese female twins
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Kijima Nobuhiko, Ando Juko
BEHAVIOR GENETICS   43(6) 540-541   Nov 2013   [Refereed]
Long-term genetic effects of working memory on cognition and personality in adolescence and adulthood: A 14-year longitudinal study of twins
Ando Juko, Shikishima Chizuru, Kijima Nobuhiko, Hiraishi Kai, Takahashi Yusuke, Yamagata Shinji
BEHAVIOR GENETICS   43(6) 506   Nov 2013   [Refereed]
Genetics of decision making: A Japanese twin study using the Allais problem
Shikishima Chizuru, Hiraishi Kai, Yamagata Shinji, Ando Juko, Okada Mitsuhiro
BEHAVIOR GENETICS   42(6) 968   Nov 2012   [Refereed]
放射能汚染は感染汚染か? 福島原発事故による放射能汚染への反応の実験的検討
横田 晋大, 平石 界, 池田 功毅, 中西 大輔
日本心理学会大会発表論文集   78回 207-207   Aug 2014
Whose happiness increases, and why? A longitudinal twin analysis over a decade-long interval
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Ando Juko
BEHAVIOR GENETICS   41(6) 936   Nov 2011   [Refereed]
福島原発事故にかかわる放射能リスクの認知 行動免疫システム仮説からの検討
平石 界, 池田 功毅, 横田 晋大, 中西 大輔
日本心理学会大会発表論文集   78回 216-216   Aug 2014
時田 真美乃, 平石 界
JCSS Japanese Congnitive Science Society   512-517   2013
中村 敏健, 平石 界, 齋藤 慈子, 坂口 菊恵, 清成 透子, 武田 美亜, 長谷川 寿一
日本心理学会大会発表論文集   75回 58-58   Aug 2011
指比(2D:4D)の双生児データ分析 遺伝率、出生前ホルモン移動、性的指向との関係
平石 界, 佐々木 掌子, 敷島 千鶴, 安藤 寿康
日本心理学会大会発表論文集   75回 1059-1059   Aug 2011
【人間とは何か 霊長類の比較認知科学】 利他行動の進化理論について幾つかの補足 山本論文へのコメント
平石 界
心理学評論   53(3) 437-440   Jan 2011
Proceedings of the Japanese Society for Cognitive Psychology   2011(0) 63-63   2011
サイコパシーは、反社会的特徴を持つ人格障害であり、他者の心的状態の認知能力の障害との関連が臨床研究により示されている(Blair, 2005)。先行研究(Ali et al., 2009;2010)では非臨床群を対象に表情・視線・音声刺激が表す感情についての認知課題が用いられ、高サイコパシー傾向者が感情理解に障害を持つことが示唆された。本研究では、その拡張として、感情的側面を含まない他者の心的状態の認知にも障害が見られるかを、大学生を対象に、Dumontheilら(2010)が成人を対象に...
Genetic correlates of syllogism-solving ability
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Sugimoto Yutaro, Ando Juko
BEHAVIOR GENETICS   40(6) 812   Nov 2010   [Refereed]
Heritability of cooperative behavior on a public goods game
Hiraishi Kai, Shikishima Chizuru, Ando Juko
BEHAVIOR GENETICS   40(6) 796   Nov 2010   [Refereed]
中村 敏健, 平石 界, 清成 透子, 長谷川 寿一
日本心理学会大会発表論文集   74回 62-62   Aug 2010
Genetic and environmental factors contributing to educational attainment in Japanese society
Shikishima Chizuru, Ozaki Koken, Hiraishi Kai, Sasaki Shoko, Ando Juko
BEHAVIOR GENETICS   39(6) 680   Nov 2009   [Refereed]
井村 裕夫, 吉川 左紀子, 平石 界
こころの未来   3 2-9   2009
An International Comparison of Etiologies of Remembered Parenting Using Japanese and Swedish Twins
Shikishima Chizuru, Hiraishi Kai, Yamagata Shinji, Ono Yutaka, Ando Juko, Neiderhiser Jenae M.
BEHAVIOR GENETICS   38(6) 648   Nov 2008   [Refereed]
Associations between general intelligence and social attitudes: A Japanese twin study
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Ando Juko
BEHAVIOR GENETICS   37(6) 793-794   Nov 2007   [Refereed]
Parental warmth and empathy: familial influences reconsidered
Shikishima Chizuru, Yamagata Shinji, Hiraishi Kai, Ando Juko, Ono Yutaka
BEHAVIOR GENETICS   36(6) 985   Nov 2006   [Refereed]
Syllogism and intelligence: g (Genetic Factor) of g (General Intelligence) revisited
Ando Juko, Shikishima Chizuru, Sugimoto Yutaro, Takemura Ryo, Hiraishi Kai, Okada Mitsuhiro
BEHAVIOR GENETICS   36(6) 953-954   Nov 2006   [Refereed]
Sharing-Rule and Detection of Free-Riders in Cooperation Groups
Thinking & Reasoning   7(3)    2001
Evolutionary Psychology: Introduction of Theories and Eupirical Studies
Cognitive Sciences   5(3)    2000

Books etc

CARLS Series of Advanced Study of Logic and Sensibility vol. 3
Shikishima, C., Yamagata S., Hiraishi K., & Ando, J. (Part:Contributor, Development of a Simple Test of Syllogism Solving(pp.145-150.))
Keio University Press   2010   
Reasoning and Cognition
D. Andler, Y, Ogawa, M. Okada, and S. Watanabe (Eds.)/Ando, J., Shikichima, C., Hiraishi, K., Sugimoto, Y, Takemura, R., and Okada, M. (Part:Contributor, At the Crossroads of Logic, Psychology, and Behavioral Genetics: Development of the Deductive Reasoning Test in the Keio Twin-Baroco Project(pp.19-36.))
Keio University Press   2006   

Conference Activities & Talks

Hiraishi Kai
The Japanese Journal of Psychonomic Science   2017   
<p>Looking back at my own staggering research history, I will discuss and reflect on why and how people should forge their own identities as a researcher in psychological science.</p>
菱谷 晋介, 平石 界, 箱田 裕司, 行場 次朗
日本心理学会大会発表論文集   Aug 2013   


Keio Twin Project

Research Grants & Projects

Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2007 - 2009    Investigator(s): Kai HIRAISHI
Genetic and environmental influences on individual differences in economic game was studied with twin sample. We constructed a web-based survey system on which participants took part in a public goods game with the strategy method. The web-study w...
Evolutionary Psychological Study on Biases in Thinking
Project Year: 1997   
Behavioval Genetics Study on Individual Differences in Reasoning