研究者詳細 - 石井　敬子

その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpr.12376

Swinging for the Fences Versus Advancing the Runner: Culture, Motivation, and Strategic Decision Making 査読有り国際共著国際誌

Chuang Roxie, Ishii Keiko, Kim Heejung S., Sherman David K.

SOCIAL PSYCHOLOGICAL AND PERSONALITY SCIENCE 13 巻 ( 1 ) 頁： 91 - 101 2022年1月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Social Psychological and Personality Science

This research investigated cross-cultural differences in strategic risky decisions in baseball—among professional baseball teams in North America and Japan (Study 1) and among baseball fans in the United States and Japan (Study 2—preregistered). Study 1 analyzed archival data from professional baseball leagues and demonstrated that outcomes reflecting high risk-high payoff strategies were more prevalent in North America, whereas outcomes reflecting low risk-low payoff strategies were more prevalent in Japan. Study 2 investigated fans’ strategic decision making with a wider range of baseball strategies as well as an underlying reason for the difference: approach/avoidance motivational orientation. European American participants preferred high risk-high payoff strategies, Japanese participants preferred low risk-low payoff strategies, and this cultural variation was explained by cultural differences in motivational orientation. Baseball, which exemplifies a domain where strategic decision making has observable consequences, can demonstrate the power of culture through the actions and preferences of players and fans alike.

DOI： 10.1177/1948550621999273

社会・文化環境と遺伝子の共進化と相互作用：これまでの成果と今後の課題

その他リンク： http://journals.sagepub.com/doi/full-xml/10.1177/1948550621999273

石井敬子

心理学評論 65 巻 ( 2 ) 頁： 186 - 204 2022年

Cultural differences in social support seeking: The mediating role of empathic concern. 査読有り国際共著国際誌

Shaofeng Zheng, Takahiko Masuda, Masahiro Matsunaga, Yasuki Noguchi, Yohsuke Ohtsubo, Hidenori Yamasue, Keiko Ishii

PLoS ONE 16 巻 ( 12 ) 頁： e0262001 2021年12月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：PLoS ONE

Prior research has found that East Asians are less willing than Westerners to seek social support in times of need. What factors account for this cultural difference? Whereas previous research has examined the mediating effect of relational concern, we predicted that empathic concern, which refers to feeling sympathy and concern for people in need and varies by individuals from different cultures, would promote support seeking. We tested the prediction in two studies. In Study 1, European Canadians reported higher empathic concern and a higher frequency of support seeking, compared to the Japanese participants. As predicted, cultural differences in social support seeking were influenced by empathic concern. In Study 2, both empathic concern and relational concern mediated cultural differences in support seeking. Japanese with lower empathic concern but higher relational concern were more reluctant than European Americans to seek social support during stressful times. Finally, loneliness, which was more prevalent among the Japanese than among the European Americans, was partially explained by social support seeking.

DOI： 10.1371/journal.pone.0262001

A Genetic Variation in the Y Chromosome Among Modern Japanese Males Related to Several Physiological and Psychological Characteristics 査読有り国際共著

Matsunaga Masahiro, Ohtsubo Yohsuke, Masuda Takahiko, Noguchi Yasuki, Yamasue Hidenori, Ishii Keiko

FRONTIERS IN BEHAVIORAL NEUROSCIENCE 15 巻頁： 774879 2021年12月

担当区分：最終著者記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Frontiers in Behavioral Neuroscience

Previous studies in population genetics have proposed that the Y-chromosomal (Y-DNA) haplogroup D ancestor likely originated from Africa. The haplogroup D branch next started Out-of-Africa migration, rapidly expanded across Eurasia, and later diversified in East Asia. Y-DNA haplogroup D-M55, one of the branches of haplogroup D, is only found in modern Japanese males, suggesting that individuals with Y-DNA haplogroup D migrated from the Eurasian continent. Based on previous observations, Y-DNA haplogroup D is expected to be associated with some male characteristics including personality. Therefore, this study investigated whether the Y-DNA haplogroup D-M55 is associated with several physiological and psychological characteristics, including exploratory motivation and human relationship-related perception. We recruited Japanese young adult males and females and investigated the association between Y-DNA haplogroup D-M55, physiological [body mass index (BMI)], and several psychological parameters [perceived number of close friends, behavioral inhibition system/behavioral activation system (BIS/BAS), perceived happiness, and perceived loneliness]. The results indicated that males with haplogroup D-M55 had a higher BMI and more close friends, compared with non-carrier males. Additional multiple regression analyses, which tested the hypothesis that haplogroup D-M55 predicts BMI and perceived number of close friends, confirmed our hypothesis, even after controlling for the potentially confounding variables of age and sex. We also analyzed the gene–gene interaction between haplogroup D-M55 and an autosomal gene polymorphism associated with BMI and human relationships, such as the dopamine D2 receptor gene (DRD2: rs1800497). Results showed gene–gene interactions between haplogroups D-M55 and DRD2 in BMI. Based on these findings, it is demonstrated that Y-DNA haplogroup D is associated with human personality.

DOI： 10.3389/fnbeh.2021.774879

なぜ人（ヒト）は協力し助け合うのか、そして文化比較研究の意義とは―新谷論文へのコメント― 招待有り

A REEXAMINATION OF THE EFFECTS OF CULTURE AND DOPAMINE D4 RECEPTOR GENE INTERACTION ON SOCIAL ORIENTATION 招待有り査読有り国際共著

Keiko ISHII, Takahiko MASUDA, Masahiro MATSUNAGA, Yasuki NOGUCHI, Hidenori YAMASUE, Yohsuke OHTSUBO

ＰＳＹＣＨＯＬＯＧＩＡ advpub 巻 ( 0 ) 2021年7月

Do Culture and Oxytocin Receptor Polymorphisms Interact to Influence Emotional Expressivity? 査読有り国際共著

Ishii K, Masuda T, Matsunaga M, Noguchi Y, Yamasue H, Ohtsubo Y

Culture and Brain 9 巻頁： 20 - 34 2021年6月

石井敬子

心理学評論 63 巻頁： 346 - 353 2021年3月

The effect of speaker-specific auditory images on reading in Japanese 査読有り国際誌

Mori Yuichi, Ishii Keiko

CURRENT PSYCHOLOGY 39 巻 ( 6 ) 頁： 2343 - 2350 2020年12月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Current Psychology

Auditory images for speech are preserved and can be accessed during reading. This research, conducted in Japan, examined whether and to what extent previous findings on the influence of speaker-specific auditory images in reading can be generalized to non-English speakers in a different cultural context. In two studies, Japanese participants were asked to read a text aloud after being informed that the text had been written by either a fast speaker or a slow speaker whose speech they were to listen to. The participants read the episode more slowly when it was attributed to a slow speaker than when it was attributed to a fast speaker. Individual differences in one’s mimicry of the speaker moderated the influence of speaker-specific auditory images in reading. The influence was confirmed only for those who consciously mimicked the speaker. In contrast, situational cues manipulated to generate affiliation with and closeness to the speakers did not influence the participants’ reading times.

DOI： 10.1007/s12144-018-9946-z

その他リンク： http://link.springer.com/article/10.1007/s12144-018-9946-z/fulltext.html

Oxytocin Receptor Gene (OXTR) and Childhood Adversity Influence Trust 査読有り国際共著国際誌

Zheng Shaofeng, Masuda Takahiko, Matsunaga Masahiro, Noguchi Yasuki, Ohtsubo Yohsuke, Yamasue Hidenori, Ishii Keiko

PSYCHONEUROENDOCRINOLOGY 121 巻頁： 104840 - 104840 2020年11月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Psychoneuroendocrinology

Early-life environments have been associated with various social behaviors, including trust, in late adolescence and adulthood. Given that the oxytocin receptor gene polymorphism (OXTR rs53576) moderates the impact of childhood experience on social behaviors, in the present study, we examined the main effect of childhood adversity through a self-report measure and its interactions with OXTR rs53576 on general trust among 203 Japanese and 200 European Canadian undergraduate students. After controlling for the effect of culture, the results indicated that childhood adversity had a negative association with general trust, and that OXTR rs53576 moderated the impact of childhood adversity on general trust. Specifically, the negative association between childhood adversity and general trust is only significant among homozygote A-allele carriers. These findings demonstrated that OXTR rs53576 moderated the relations between childhood experiences and social functioning in early adulthood.

DOI： 10.1016/j.psyneuen.2020.104840

Residential Mobility Fosters Sensitivity to the Disappearance of Happiness 査読有り国際共著国際誌

Ishii K., Komiya A., Oishi S.

International Journal of Psychology 55 巻 ( 4 ) 頁： 577 - 584 2020年8月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：International Journal of Psychology

We conducted two studies to examine the hypothesis that residential mobility would evoke anxiety and foster sensitivity to signs of disapproval, such as the disappearance of happiness. American and Japanese participants were asked to watch happy-to-neutral movies and sad-to-neutral movies and judge the point at which they thought that their initial expressions had disappeared. We found that, regardless of cultures, participants who had experienced frequent moving (Study 1) and those asked to imagine and describe a mobile lifestyle of frequent moving (Study 2) judged the disappearance of happy faces faster than those who did not experience or imagine frequent moving. Our results were also in line with the previous finding in which Japanese were more vigilant than Americans in regards to the disappearance of happy faces. Moreover, we found that imagining a mobile lifestyle made participants feel more concerned than when imagining a stable lifestyle. The implications for the social skills needed for people in the globalising world are discussed.

DOI： 10.1002/ijop.12627

その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1002/ijop.12627

My Voice Capturing My Attention to Myself: The Effects of Objective Self-Awareness on Japanese People 査読有り国際誌

Narita Asuka, Ishii Keiko

FRONTIERS IN PSYCHOLOGY 11 巻頁： 1596 2020年7月

担当区分：最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Frontiers in Psychology

Previous research has demonstrated that the presence of a mirror does not influence Japanese people’s self-evaluation and cheating behaviors, which reflects their tendency to habitually think of themselves based on their imagined perspectives of others. The present work extends the evidence by manipulating the presence of the participants’ own voices as well as that of a mirror (Study 1); it explores the effects of another participant’s voice (Study 2). Consistent with previous findings, the presence of a mirror does not influence Japanese participants’ self-esteem, moral values, and cheating behaviors. In contrast, an impact of their own voice was partially found. The exposure to their own voice decreased the participants’ moral value of fairness and discouraged the participants from cheating by drawing additional coins. Furthermore, no effect of other voices was found. Overall, we observed a limited effect of self-focusing stimuli in Japanese participants, although it should be noted that their own voices were relatively effective for capturing self-focused attention.

DOI： 10.3389/fpsyg.2020.01596