研究者詳細 - 石井　敬子

Preferences for Facial Femininity/Masculinity Across Culture and the Sexual Orientation Spectrum 査読有り国際共著

Bjornsdottir, RT; Holzleitner, IJ; Ishii, K

Journal of Experimental Psychology: General 2025年1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：Journal of Experimental Psychology: General

Judgments of attractiveness have many important social outcomes, highlighting the need to understand how people form these judgments. One aspect of appearance that impacts perceptions of attractiveness is facial femininity/masculinity (sexual dimorphism). However, extant research has focused primarily on White, Western, heterosexual participants’ preferences for femininity/masculinity in White faces, limiting generalizability. Indeed, recent research indicates that these preferences vary by culture, and other work finds differences between gay/lesbian and heterosexual individuals. Aspects of identity, such as culture and sexual orientation, do not exist in isolation from one another but rather intersect, leaving a critical gap in understanding. Our research therefore bridged across these hitherto separate areas of inquiry to provide a more comprehensive understanding of facial femininity/masculinity preferences. We tested how White British and East Asian Japanese individuals’ culture and sexual orientation (including, crucially, bisexual individuals) predict their femininity/masculinity preferences for White and East Asian women’s and men’s faces, using two experimental tasks (forced-choice, interactive). Results show that individuals’ culture and sexual orientation consistently interact to predict their preferences for femininity/masculinity in women’s and men’s faces, and we furthermore reveal bisexual individuals’ preferences to differ from those of other sexual orientations. We also find differences between experimental tasks, with greater preferences for femininity emerging in the interactive task compared to the forced-choice task. Altogether, our findings highlight the importance of considering intersecting identities, consequences of methods of measurement, and shortcomings of extant explanations for preferences for facial femininity/masculinity.

DOI： 10.1037/xge0001720

Self-Enhancement in Latin America: Is It Linked to Interdependence? 査読有り国際共著 Open Access

Salvador, CE; Carlier, SI; Ishii, K; Castillo, CT; Nanakdewa, K; Segovia, FC; San Martin, A; Savani, K; Kitayama, S

Personality and Social Psychology Bulletin 頁： 1461672241309387 2025年1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：Personality and Social Psychology Bulletin

Although individuals of Latin American heritage (Latin Americans in short) are considered interdependent, they also value traits like uniqueness and positivity, like individuals of European American cultural heritage, who are considered independent. It remains unclear whether this inclination toward positivity extends to a bias in self-perception known as self-enhancement. Moreover, if Latin Americans are indeed self-enhancing, it is uncertain how these tendencies align with their interdependent cultural orientation. In this article, we report three studies (N = 1,246) with three operationalizations of self-enhancement. We found that Mexicans, Colombians, and Ecuadorians show self-enhancement that is mostly similar in magnitude to European Americans. Notably, Study 3 found that self-enhancement is related to interdependence in Latin America: Unlike European Americans, Latin Americans in Ecuador exhibited stronger self-enhancement when interdependence is primed rather than independence. Our findings suggest that among Latin American individuals, self-enhancement not only exists but also reinforces interdependence.

DOI： 10.1177/01461672241309387

The impact of online course medium on perceived learning: evidence from a retrospective panel data study of Japanese university students 査読有り

その他リンク： https://journals.sagepub.com/doi/full-xml/10.1177/01461672241309387

Utsumi, Y; Smith, A; Li, Y; Kokubun, R; Ishii, K

Educational Psychology 45 巻 ( 1 ) 頁： 43 - 66 2025年1月

掲載種別：研究論文（学術雑誌）出版者・発行元：Educational Psychology

This study investigates the impact of course delivery methods on perceived learning by analysing the shift from face-to-face to online courses among Japanese university students, using the COVID-19 pandemic as a natural experiment. Data were collected from approximately 750 students, and detailed analyses were conducted on a subset of 426 students’ data. The study controls for variations in psychological states, academic grades, and socio-economic statuses before and after the pandemic through panel data analysis. This approach minimises pandemic-related confounds, focusing on effects of online education modalities. Using random- and fixed-effects models, findings indicate asynchronous online courses significantly reduced students’ perceived learning, unlike synchronous and mixed-mode courses. This impact varied by grade level, with second year students showing the most substantial decrease. These insights highlight the need for adaptive educational policies to respond to rapid transitions to online learning, aiming to preserve quality under challenging circumstances.

DOI： 10.1080/01443410.2024.2448196

Overcoming low status or maintaining high status? A multinational examination of the association between socioeconomic status and honour 査読有り国際共著

Sanchez-Rodriguez, A; O'Dea, C; Uskul, AK; Kirchner-Häusler, A; Vignoles, V; Chobthamkit, P; Achmad, RA; Andrianto, S; Kristanto, AA; Ardi, R; Lesmana, CBJ; Castillo, VA; Chaleeraktrakoon, T; Zhi, ACH; Choompunuch, B; Cross, SE; Nguyen, SD; Fernandez, EF; Purba, FD; Reyes, MES; Yalçin, MG; Siswadi, AGP; Harb, C; Hashim, IHM; Husnu, S; Hutapea, B; Le Hoang, TH; Ishii, K; Ismail, R; Ito, K; Suryani, LK; Kaewyodthiwat, T; Kafetsios, K; Karamaouna, P; Kateri, E; Khan, A; Khieowan, N; Lufityanto, G; Macapagal, MEJ; Marappan, D; Matamoros-Lima, J; Miniesy, R; Yusoff, AM; Na, JKY; Özkan, Z; Pagliaro, S; Psaltis, C; Rabie, D; Reinhart, M; Ridfah, A; Rodriguez-Bailón, R; Ishak, MS; Teresi, M; Tengco-Pacquing, MC; Thongpibul, K; Tri, MTT; Zwagery, RV; Wisayanti, S; Hoon, CY; Uchida, Y

British Journal of Social Psychology 64 巻 ( 1 ) 頁： e12854 2025年1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：British Journal of Social Psychology

We examined the relationship between socioeconomic status (SES) and endorsement of honour. We studied the SES-honour link in 5 studies (N = 13,635) with participants recruited in different world regions (the Mediterranean and MENA, East Asian, South-East Asian, and Anglo-Western regions) using measures that tap into various different facets of honour. Findings from these studies revealed that individuals who subjectively perceived themselves as belonging to a higher (vs. lower) SES endorsed various facets of honour more strongly (i.e. defence of family honour values and concerns, self-promotion and retaliation values, masculine honour beliefs, emphasis on personal and family social image, the so-called street code). We discuss implications of these findings for the cultural dynamics linked to SES.

DOI： 10.1111/bjso.12854

Are Mediterranean Societies "Cultures of Honor?": Prevalence and Implications of a Cultural Logic of Honor Across Three World Regions 査読有り国際共著

Vignoles, VL; Kirchner-Häusler, A; Uskul, AK; Cross, SE; Rodriguez-Bailón, R; Bossom, IRL; Castillo, VA; Gezici-Yalçin, M; Harb, C; Ishii, K; Karamaouna, P; Kafetsios, K; Kateri, E; Matamoros-Lima, J; Miniesy, R; Na, J; Özkan, Z; Pagliaro, S; Psaltis, C; Rabie, D; Teresi, M; Uchida, Y; Wohl, MJA

Personality and Social Psychology Bulletin 2024年12月

掲載種別：研究論文（学術雑誌）出版者・発行元：Personality and Social Psychology Bulletin

Mediterranean societies are often labeled as “honor cultures,” in contrast with presumed “dignity” and “face” cultures of Anglo-Western and East Asian societies. We measured these cultural logics in two large-scale surveys (Studies 1 & 3: N = 2,942 students from 11 societies; Study 2: N = 5,471 adults from 14 societies). Middle Eastern and North African groups perceived honor values as the most normative in their societies, followed by Southeast European, and then Latin-European groups (who were comparable to Anglo-Western and East-Asian groups). East-Asian and Anglo-Western groups, respectively, perceived face and dignity values as most normative. Culture-level variation in perceived normative honor values, but not personal values, accounted for previously reported differences between Mediterranean and non-Mediterranean samples in several (but not all) measures of social cognitive tendencies. We conclude that a cultural logic of honor plays a role in Mediterranean societies, but labeling these societies as “honor cultures” is oversimplistic.

DOI： 10.1177/01461672241295500

その他リンク： https://journals.sagepub.com/doi/full-xml/10.1177/01461672241295500

Internationalising imperatives and decolonising aspirations: Navigating social psychology teaching in Asia 査読有り国際共著 Open Access

Hamamura, T; Clemente, JAR; English, AS; Ishii, K; Siddiqui, RN

Asian Journal of Social Psychology 27 巻 ( 4 ) 頁： 911 - 922 2024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：Asian Journal of Social Psychology

Working in a field that underrepresents populations outside Western societies, social psychologists in the Asia-Pacific region encounter challenges in conducting research and imparting knowledge about social behaviour that resonates with local contexts. This paper argues that teaching can be a pathway for social psychology to rectify this representation problem. In this study, we report the results of our survey designed to contribute to an initial understanding of how and what social psychology is currently taught. Collectively, our survey respondents teach social psychology to over 12,000 students each year across 11 societies in the region. Results indicate that social psychology is seen as a crucial part of psychology education. About 80% of the respondents agreed that students should be taught that what is known in the international literature may not apply to a local context. At the same time, about 70% of the content taught was estimated to come from Western countries. Our findings highlight an opportunity for social psychology to evolve through teaching that embraces a more inclusive approach to meet societal demands for sound psychological knowledge.

DOI： 10.1111/ajsp.12647

Open Access

Childhood adversity and health: The mediating roles of emotional expression and general trust 査読有り Open Access

Hirano, H; Ishii, K

Frontiers in Psychology 15 巻頁： 1493421 2024年11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：Frontiers in Psychology

Introduction: This study examined whether adverse childhood experiences, positive emotional expressivity in personal (i.e., expressing positive emotions when good things happened to oneself) and social settings (i.e., expressing positive emotions when good things happened to others such as friends or family), and general trust predict levels of happiness and loneliness among American and Japanese participants. We also explored whether these two types of emotional expression and general trust mediate the relationship between adverse childhood experiences and happiness/loneliness. Methods: American and Japanese participants who agreed to participate in the current study first completed the Subjective Happiness Scale. Next, they answered the Emotion Expression Questionnaire, the 5-item General Trust Scale, and the revised UCLA Loneliness Scale. They then responded to the Risky Family Questionnaire. Finally, they answered demographic questions (e.g., age, gender). We hypothesized that regardless of culture, adverse childhood experiences would be negatively (positively) associated with happiness (loneliness), while positive emotional expression in personal and social settings and general trust would be positively (negatively) related to happiness (loneliness). We also predicted that positive emotional expression in both personal and social settings, as well as general trust, would mediate the relationships between adverse childhood experiences and happiness/loneliness. Results: As expected, adverse childhood experiences were negatively (positively) associated with happiness (loneliness), while positive emotional expression in personal and social settings and general trust were positively (negatively) related to happiness (loneliness). Besides, positive emotional expression in a personal situation mediated the relationships between adverse childhood experiences and happiness/loneliness, such that greater early life adversity was negatively linked to positive emotional expressivity in a personal setting, which, in turn, predicted lower happiness and higher loneliness. Discussion: The present study advances the understanding of psychological mechanisms linking adverse childhood experiences to happiness and loneliness by highlighting the significant role of positive emotional expression in a personal situation. This result underscores the importance of developing therapeutic practices and public health strategies that foster authentic emotional expression in response to personal achievement or fortune, regardless of cultural background.

DOI： 10.3389/fpsyg.2024.1493421

Policy as normative influence? On the relationship between parental leave policy and social norms in gender division of childcare across 48 countries 査読有り国際共著

Schindler, S; Schuster, C; Olsson, MIT; Froehlich, L; Hübner, AK; Block, K; Van Laar, C; Schmader, T; Meeussen, L; van Grootel, S; Croft, A; Sun, MS; Ainsaar, M; Aarntzen, L; Adamus, M; Anderson, J; Atkinson, C; Avicenna, M; Babel, P; Barth, M; Benson-Greenwald, T; Maloku, E; Berent, J; Bergsieker, HB; Biernat, M; Birneanu, A; Bodinaku, B; Bosak, J; Bosson, J; Brankovic, M; Burkauskas, J; Cavojová, V; Cheryan, S; Choi, E; Choi, I; Contreras-Ibáñez, CC; Coogan, A; Danyliuk, I; Dar-Nimrod, I; Dasgupta, N; de Lemus, S; Devos, T; Diab, M; Diekman, AB; Efremova, M; Eisner, L; Eller, A; Erentaite, R; Fedáková, D; Franc, R; Gartzia, L; Gavreliuc, A; Gavreliuc, D; Gecaite-Stonciene, J; Germano, AL; Giovannelli, I; Diaz, RG; Gitikhmayeva, L; Gizaw, AM; Gjoneska, B; González, OM; González, R; Grijalva, ID; Güngör, D; Sendén, MG; Hall, W; Harb, C; Hassan, B; Hässler, T; Hawi, DR; Henningsen, L; Hoppe, A; Ishii, K; Jaksic, I; Jasini, A; Jurkeviciene, J; Kelmendi, K; Kirby, TA; Kitakaji, Y; Kosakowska-Berezecka, N; Kozytska, I; Kulich, C; Kundtová-Klocová, E; Kunuroglu, F; Aidy, CL; Lee, A; Lindqvist, A; López-López, W; Luzvinda, L; Maricchiolo, F; Martinot, D; McNamara, RA; Meister, A; Melka, TL; Mickuviene, N; Miranda-Orrego, MI; Mkamwa, T; Morandini, J; Morton, T; Mrisho, D; Nikitin, J; Otten, S; Pacilli, MG; Page-Gould, E; Perandrés-Gómez, A; Pizarro, J; Pop-Jordanova, N; Pyrkosz-Pacyna, J; Quta, S; Ramis, T; Rani, N; Redersdorff, S; Régner, I; Renström, EA; Rivera-Rodriguez, A; Esmeralda, RST; Ryabichenko, T; Saab, R; Sakata, K; Samekin, A; Sánchez-Pacheco, T; Scheifele, C; Schulmeyer, MK; Sczesny, S; Sirlopú, D; Smith-Castro, V; Soo, K; Spaccatini, F; Steele, JR; Steffens, MC; Sucic, I; Vandello, J; Velásquez-Díaz, LM; Vink, M; Vives, E; Warkineh, TZ; Zezelj, I; Zhang, XX; Zhao, X; Koc, Y; Kocak, ÖE; Martiny, SE

British Journal of Social Psychology 2024年10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：British Journal of Social Psychology

In the present work, we addressed the relationship between parental leave policies and social norms. Using a pre-registered, cross-national approach, we examined the relationship between parental leave policies and the perception of social norms for the gender division of childcare. In this study, 19,259 students (11,924 women) from 48 countries indicated the degree to which they believe childcare is (descriptive norm) and should be (prescriptive norm) equally divided among mothers and fathers. Policies were primarily operationalized as the existence of parental leave options in the respective country. The descriptive and prescriptive norms of equal division of childcare were stronger when parental leave was available in a country – also when controlling for potential confounding variables. Moreover, analyses of time since policy change suggested that policy change may initially affect prescriptive norms and then descriptive norms at a later point. However, due to the cross-sectional nature of the data, drawing causal inferences is difficult.

DOI： 10.1111/bjso.12806

Personal Relative Deprivation and Locus of Control 査読有り国際共著 Open Access

Callan, MJ; Sutton, RM; Chobthamkit, P; Yeung, VWL; Leung, FYN; Asano, R; Beattie, P; Bernardo, ABI; Boonroungrut, C; Chang, JH; Chaudhuri, A; Chien, CL; Choi, HS; Cui, LX; Du, HF; English, AS; Fuji, K; Hitokoto, H; Iida, J; Ishii, K; Jiang, DY; Jogdand, Y; Lee, HJ; Mifune, N; Murayama, A; Na, J; One, K; Park, J; Sato, K; Shah, PN; Sharma, S; Suh, EM; Tipandjan, A; Wu, MS; Skylark, WJ

Journal of Personality 2024年10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：Journal of Personality

Objective: We investigated the relationship between personal relative deprivation (PRD)—resentment from the belief that one is worse off than people who are similar to oneself—and locus of control. Background: Research has yet to comprehensively investigate whether PRD is associated with a tendency to favor external (vs. internal) explanations for self- and other-relevant outcomes. Method: Eight studies (Ntotal = 6729) employed cross-sectional, experimental, and (micro)longitudinal designs and used established trait and state measures of PRD and loci of control. Results: Participants higher in PRD adopted more external (vs. internal) explanations for others' outcomes while controlling for socio-demographics (e.g., socioeconomic status; Studies 1–4). This relationship was mediated by a lowered sense of personal control (Study 1) and evident in a cross-national sample of participants in Asia (Study 2). PRD is more robustly associated with external than internal explanations for self and other-relevant outcomes (Studies 5–8), and within-person changes in PRD are positively associated with within-person changes in external explanations (month-to-month and day-to-day; Studies 7–8). Conclusions: PRD is positively associated with external locus of control independent of socioeconomic status, within and between people, and across cultures. This research highlights the implications of PRD for people's construal of the causal forces that govern their lives.

DOI： 10.1111/jopy.12980

Empathic Concern Promotes Social Support-Seeking: A Cross-Cultural Study 査読有り

Zheng, SF; Tanaka, R; Ishii, K

Emotion 2024年10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：Emotion

Previous research has suggested that empathic concern may affect cultural differences in social support-seeking. However, neither the mechanisms through which empathic concern promotes support-seeking nor the explanations for cultural differences in empathic concern are clear. This study attempted to address these questions by conducting three studies in Japan and the United States. The results showed that Japanese participants reported having lower trait-empathic concern and seeking less social support in dealing with stress than European Americans. Study 1 found that trait-empathic concern mediated the cultural differences in support-seeking by increasing beliefs about others’ prosocial willingness. Using a controlled set of stressful scenarios, Study 2 replicated the results of Study 1. Additionally, Study 2 showed that Japanese participants reported greater endorsement of the causal repressive suffering construal than European Americans, partly accounting for cultural differences in trait-empathic concern. Using an experimental design, Study 3 showed that primed empathic concern increased support-seeking in coping with follow-up stress across cultures. These findings contribute to our understanding of the role of empathic concern in support-seeking and cultural differences in empathic concern.

DOI： 10.1037/emo0001451

Subjective well-being can be predicted by caudate volume and promotion focus. 査読有り

Matsunaga M, Ohtsubo Y, Ishii K, Tsuboi H, Suzuki K, Takagishi H

Brain structure & function 229 巻頁： 2315 - 2326 2024年7月

Exploring emotion regulation and coping across cultures: Implications for happiness and loneliness 査読有り

Hirano, H; Ishii, K

Asian Journal of Social Psychology 27 巻頁： 613 - 625 2024年4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：Asian Journal of Social Psychology

Previous studies have documented cultural gaps in levels of well-being, particularly within the contexts of individualistic and collectivistic nations. However, the underlying mechanisms responsible for the disparities remain incompletely understood. Therefore, the primary objective of this study was to explore how cross-cultural differences in the use of emotion regulation (cognitive reappraisal and expressive suppression) and coping (problem-focused and avoidant coping) predict health outcomes, specifically happiness and loneliness. As expected, the results of structural equation modelling demonstrated that American participants were more likely to use reappraisal and problem-focused coping, both of which were positively associated with happiness but negatively linked to loneliness. In contrast, Japanese participants tended to lean toward suppression and avoidant coping, resulting in lower happiness and greater loneliness. Overall, the present findings affirm the substantial influence of cultural norms and values on regulatory strategies individuals employ in response to daily stressors, which are inextricably tied to human functioning.

DOI： 10.1111/ajsp.12619

Empathy and need for closure are linked to moral foundations and political orientation: A replication study in Japan 査読有り

Goun Park, Keiko Ishii

実験社会心理学研究 63 巻 ( 2 ) 頁： 61 - 66 2024年3月

The Misandry Myth: An Inaccurate Stereotype About Feminists' Attitudes Toward Men 査読有り国際共著

Hopkins-Doyle, A; Petterson, AL; Leach, S; Zibell, H; Chobthamkit, P; Rahim, SBA; Blake, J; Bosco, C; Cherrie-Rees, K; Beadle, A; Cock, V; Greer, H; Jankowska, A; Macdonald, K; English, AS; Yeung, VWL; Asano, R; Beattie, P; Bernardo, ABI; Boonroungrut, C; Chaudhuri, A; Chien, CL; Choi, HS; Cui, LX; Du, HF; Fuji, K; Hitokoto, H; Iida, J; Ishii, K; Jiang, DY; Jogdand, Y; Lee, HJ; Mifune, N; Moon, C; Murayama, A; Na, J; One, K; Park, J; Sato, K; Sharma, S; Suh, EM; Tipandjan, A; Sutton, RM

Psychology of Women Quarterly 48 巻 ( 1 ) 頁： 8 - 37 2024年3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：Psychology of Women Quarterly

In six studies, we examined the accuracy and underpinnings of the damaging stereotype that feminists harbor negative attitudes toward men. In Study 1 (n = 1,664), feminist and nonfeminist women displayed similarly positive attitudes toward men. Study 2 (n = 3,892) replicated these results in non-WEIRD countries and among male participants. Study 3 (n = 198) extended them to implicit attitudes. Investigating the mechanisms underlying feminists’ actual and perceived attitudes, Studies 4 (n = 2,092) and 5 (nationally representative UK sample, n = 1,953) showed that feminists (vs. nonfeminists) perceived men as more threatening, but also more similar, to women. Participants also underestimated feminists’ warmth toward men, an error associated with hostile sexism and a misperception that feminists see men and women as dissimilar. Random-effects meta-analyses of all data (Study 6, n = 9,799) showed that feminists’ attitudes toward men were positive in absolute terms and did not differ significantly from nonfeminists'. An important comparative benchmark was established in Study 6, which showed that feminist women's attitudes toward men were no more negative than men's attitudes toward men. We term the focal stereotype the misandry myth in light of the evidence that it is false and widespread, and discuss its implications for the movement.

DOI： 10.1177/03616843231202708

その他リンク： http://journals.sagepub.com/doi/full-xml/10.1177/03616843231202708

Proximal and distal honor fit and subjective well‐being in the Mediterranean region 査読有り国際共著

Alexander Kirchner‐Häusler, Felix D. Schönbrodt, Ayse K. Uskul, Vivian L. Vignoles, Rosa Rodríguez‐Bailón, Vanessa A. Castillo, Susan E. Cross, Meral Gezici‐Yalçın, Charles Harb, Shenel Husnu, Keiko Ishii, Panagiota Karamaouna, Konstantinos Kafetsios, Evangelia Kateri, Juan Matamoros‐Lima, Rania Miniesy, Jinkyung Na, Zafer Özkan, Stefano Pagliaro, Charis Psaltis, Dina Rabie, Manuel Teresi, Yukiko Uchida

Journal of Personality 92 巻 ( 1 ) 頁： 38 - 54 2024年2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：Journal of Personality

Objective: People's psychological tendencies are attuned to their sociocultural context and culture-specific ways of being, feeling, and thinking are believed to assist individuals in successfully navigating their environment. Supporting this idea, a stronger “fit” with one's cultural environment has often been linked to positive psychological outcomes. The current research expands the cultural, conceptual, and methodological space of cultural fit research by exploring the link between well-being and honor, a central driver of social behavior in the Mediterranean region. Method: Drawing on a multi-national sample from eight countries circum-Mediterranean (N = 2257), we examined the relationship between cultural fit in honor and well-being at the distal level (fit with one's perceived society) using response surface analysis (RSA) and at the proximal level (fit with one's university gender group) using profile analysis. Results: We found positive links between fit and well-being in both distal (for some, but not all, honor facets) and proximal fit analyses (across all honor facets). Furthermore, most fit effects in the RSA were complemented with positive level effects of the predictors, with higher average honor levels predicting higher well-being. Conclusions: Our findings highlight the interplay between individual and environmental factors in honor as well as the important role honor plays in well-being in the Mediterranean region.

DOI： 10.1111/jopy.12803

Did Descriptive and Prescriptive Norms About Gender Equality at Home Change During the COVID-19 Pandemic? A Cross-National Investigation 国際誌

その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jopy.12803

Saxler, FM; Dorrough, AR; Froehlich, L; Block, K; Croft, A; Meeussen, L; Olsson, M; Schmader, T; Schuster, C; van Grootel, S; Van Laar, C; Atkinson, C; Benson-Greenwald, T; Birneanu, A; Cavojova, V; Cheryan, S; Chung, ALK; Danyliuk, I; Dar-Nimrod, I; de Lemus, S; Diekman, A; Eisner, L; Estevan-Reina, L; Fedáková, D; Gavreliuc, A; Gavreliuc, D; Germano, A; Haessler, T; Henningsen, L; Ishii, K; Klocová, EK; Kozytska, I; Kulich, C; Aidy, CL; López, WL; Morandini, J; Ramis, T; Scheifele, C; Steele, J; Steffens, MC; Díaz, LMV; Venegas, M; Martiny, SE

PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 頁： 1461672231219719 - 1461672231219719 2024年1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：Personality and Social Psychology Bulletin

Using data from 15 countries, this article investigates whether descriptive and prescriptive gender norms concerning housework and child care (domestic work) changed after the onset of the COVID-19 pandemic. Results of a total of 8,343 participants (M = 19.95, SD = 1.68) from two comparable student samples suggest that descriptive norms about unpaid domestic work have been affected by the pandemic, with individuals seeing mothers’ relative to fathers’ share of housework and child care as even larger. Moderation analyses revealed that the effect of the pandemic on descriptive norms about child care decreased with countries’ increasing levels of gender equality; countries with stronger gender inequality showed a larger difference between pre- and post-pandemic. This study documents a shift in descriptive norms and discusses implications for gender equality—emphasizing the importance of addressing the additional challenges that mothers face during health-related crises.

DOI： 10.1177/01461672231219719

Gender Gap in Parental Leave Intentions: Evidence from 37 Countries 査読有り国際共著

Maria I. T. Olsson, Sanne van Grootel, Katharina Block, Carolin Schuster, Loes Meeussen, Colette Van Laar, Toni Schmader, Alyssa Croft, Molly Shuyi Sun, Mare Ainsaar, Lianne Aarntzen, Magdalena Adamus, Joel Anderson, Ciara Atkinson, Mohamad Avicenna, Przemysław Bąbel, Markus Barth, Tessa M. Benson‐Greenwald, Edona Maloku, Jacques Berent, Hilary B. Bergsieker, Monica Biernat, Andreea G. Bîrneanu, Blerta Bodinaku, Janine Bosak, Jennifer Bosson, Marija Branković, Julius Burkauskas, Vladimíra Čavojová, Sapna Cheryan, Eunsoo Choi, Incheol Choi, Carlos C. Contreras‐Ibáñez, Andrew Coogan, Ivan Danyliuk, Ilan Dar‐Nimrod, Nilanjana Dasgupta, Soledad de Lemus, Thierry Devos, Marwan Diab, Amanda B. Diekman, Maria Efremova, Léïla Eisner, Anja Eller, Rasa Erentaite, Denisa Fedáková, Renata Franc, Leire Gartzia, Alin Gavreliuc, Dana Gavreliuc, Julija Gecaite‐Stonciene, Adriana L. Germano, Ilaria Giovannelli, Renzo Gismondi Diaz, Lyudmila Gitikhmayeva, Abiy Menkir Gizaw, Biljana Gjoneska, Omar Martínez González, Roberto González, Isaac David Grijalva, Derya Güngör, Marie Gustafsson Sendén, William Hall, Charles Harb, Bushra Hassan, Tabea Hässler, Diala R. Hawi, Levke Henningsen, Annedore Hoppe, Keiko Ishii, Ivana Jakšić, Alba Jasini, Jurgita Jurkevičienė, Kaltrina Kelmendi, Teri A. Kirby, Yoko Kitakaji, Natasza Kosakowska‐Berezecka, Inna Kozytska, Clara Kulich, Eva Kundtová‐Klocová, Filiz Kunuroglu, Christina Lapytskaia Aidy, Albert Lee, Anna Lindqvist, Wilson López‐López, Liany Luzvinda, Fridanna Maricchiolo, Delphine Martinot, Rita Anne McNamara, Alyson Meister, Tizita Lemma Melka, Narseta Mickuviene, María Isabel Miranda‐Orrego, Thadeus Mkamwa, James Morandini, Thomas Morton, David Mrisho, Jana Nikitin, Sabine Otten, Maria Giuseppina Pacilli, Elizabeth Page‐Gould, Ana Perandrés, Jon Pizarro, Nada Pop‐Jordanova, Joanna Pyrkosz‐Pacyna, Sameir Quta, TamilSelvan Ramis, Nitya Rani, Sandrine Redersdorff, Isabelle Régner, Emma A. Renström, Adrian Rivera‐Rodriguez, Sánchez Tania, Esmeralda Rocha, Tatiana Ryabichenko, Rim Saab, Kiriko Sakata, Adil Samekin, Tracy Sánchez‐Pachecho, Carolin Scheifele, Marion K. Schulmeyer, Sabine Sczesny, David Sirlopú, Vanessa Smith‐Castro, Kadri Soo, Federica Spaccatini, Jennifer R. Steele, Melanie C. Steffens, Ines Sucic, Joseph Vandello, Laura Maria Velásquez‐Díaz, Melissa Vink, Eva Vives, Turuwark Zalalam Warkineh, Iris Žeželj, Xiaoxiao Zhang, Xian Zhao, Sarah E. Martiny

Political Psychology 44 巻 ( 6 ) 頁： 1163 - 1192 2023年12月

Exploratory research on genetic polymorphisms associated with positive empathy and trait forgivingness among the Japanese 査読有り国際誌

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

NEUROENDOCRINOLOGY LETTERS 44 巻 ( 8 ) 頁： 506 - 516 2023年12月

Association between internet addiction, brain structure, and social capital in adolescents 査読有り

Matsunaga, M; Ohtsubo, Y; Ishii, K; Tsuboi, H; Suzuki, K; Takagishi, H

SOCIAL NEUROSCIENCE 18 巻 ( 6 ) 頁： 355 - 364 2023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：Social Neuroscience

Of late, internet addiction among adolescents has become a serious problem, with increased internet use. Previous research suggests that the more people become addicted to the internet, the more they isolate themselves from society. Conversely, it has been suggested that abundant social capital (the networks of relationships among people who live and work in a particular society) protects people from becoming addicted to the internet. This study focused on the brain structure of typical adolescents (10–18 years of age) and hypothesized that the size of the left dorsolateral prefrontal cortex (DLPFC), which is thought to be associated with self-control ability, is associated with both internet addiction and social capital. Voxel-based morphometry analysis indicated that left DLPFC volume was negatively correlated with the severity of internet addiction and positively correlated with social capital. Furthermore, correlation analysis demonstrated that the severity of internet addiction and social capital were negatively correlated. The statistical association between them was no longer significant when left DLPFC volume was used as a control variable. These results suggest that the left DLPFC may mediate the relationship between social capital and internet addiction in adolescents.

DOI： 10.1080/17470919.2023.2264543

Cultural Fit of Emotions and Subjective Well-Being: Replicating Comparative Evidence and Extending it to the Mediterranean region 査読有り国際共著

Alexander Kirchner-Häusler, Jozefien De Leersnyder, Ayse K. Uskul, Fattana Mirzada, Vivian L. Vignoles, Rosa Rodríguez-Bailón, Vanessa A. Castillo, Susan E. Cross, Meral Gezici-Yalçın, Charles Harb, Shenel Husnu, Keiko Ishii, Panagiota Karamaouna, Konstantinos Kafetsios, Evangelia Kateri, Juan Matamoros-Lima, Rania Miniesy, Jinkyung Na, Zafer Özkan, Stefano Pagliaro, Charis Psaltis, Dina Rabie, Manuel Teresi, Yukiko Uchida

Current Research in Ecological and Social Psychology 5 巻頁： 100171 - 100171 2023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：Current Research in Ecological and Social Psychology

Greater “emotional fit” with one's cultural group is often associated with positive psychological and relational outcomes. However, the few empirical studies on this link have been limited to the comparison of Anglo-Western, independent, and East Asian, interdependent cultural contexts. In the current paper, we conceptually replicated findings from three studies on the link between emotional fit and well-being in Anglo-Western and East Asian contexts, using different methods and more comprehensive samples. Moreover, we expanded emotional fit research to the understudied Mediterranean region, characterized by an emphasis on “honor” and a distinct blend of independence and interdependence. We collected data from N = 3,097 participants from 12 countries and asked participants to report their emotional experience in 10 hypothetical situations and to rate their well-being in different domains. Our results largely replicated established positive links between emotional fit and well-being in the Anglo-West and East-Asia, as i) experiencing more culturally valued emotions (from which we infer cultural fit) was linked to better general well-being; ii) actual, calculated emotional fit in relationship-focused situations predicted better relational well-being; and iii) only in East Asia calculated emotional fit in culturally central contexts predicted psychological well-being and thriving. Our exploratory analyses on the Mediterranean region showed a non-homogenous pattern: while general well-being was consistently most strongly predicted by the intensity of disengaging emotions, relational and psychological well-being were differentially predicted by calculated emotional fit in relationship-focused situations across different Mediterranean sub-regions. The current work consolidates insights into how our well-being is shaped by the interplay between culture and emotional fit and strengthens evidence that there may be ‘universalism without uniformity’.

DOI： 10.1016/j.cresp.2023.100171

Emotionally Expressive Interdependence in Latin America: Triangulating Through a Comparison of Three Cultural Zones 査読有り国際共著国際誌

Salvador, CE; Carlier, SI; Ishii, K; Castillo, CT; Nanakdewa, K; San Martin, A; Savani, K; Kitayama, S

EMOTION 2023年10月

Editorial: Psychological Science of Interoception 招待有り

Ishii, K; Ohira, H

JAPANESE PSYCHOLOGICAL RESEARCH 65 巻 ( 4 ) 頁： 275 - 276 2023年10月

Neither Eastern nor Western: Patterns of Independence and Interdependence in Mediterranean Societies 査読有り国際共著

Uskul, AK; Kirchner-Häusler, A; Vignoles, VL; Rodriguez-Bailón, R; Castillo, VA; Cross, SE; Yalçin, MG; Harb, C; Husnu, S; Ishii, K; Jin, SX; Karamaouna, P; Kafetsios, K; Kateri, E; Matamoros-Lima, J; Liu, DQ; Miniesy, R; Na, J; Özkan, Z; Pagliaro, S; Psaltis, C; Rabie, D; Teresi, M; Uchida, Y

JOURNAL OF PERSONALITY AND SOCIAL PSYCHOLOGY 125 巻 ( 3 ) 頁： 471 - 495 2023年9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：Journal of Personality and Social Psychology

Social science research has highlighted “honor” as a central value driving social behavior in Mediterranean societies, which requires individuals to develop and protect a sense of their personal self-worth and their social reputation, through assertiveness, competitiveness, and retaliation in the face of threats. We predicted that members of Mediterranean societies may exhibit a distinctive combination of independent and interdependent social orientation, self-construal, and cognitive style, compared to more commonly studied East Asian and Anglo-Western cultural groups. We compared participants from eight Mediterranean societies (Spain, Italy, Greece, Turkey, Cyprus [Turkish Cypriot and Greek Cypriot communities], Lebanon, Egypt) to participants from East Asian (Korea, Japan) and Anglo-Western (the United Kingdom, the United States) societies, using six implicit social orientation indicators, an eight-dimensional self-construal scale, and four cognitive style indicators. Compared with both East Asian and Anglo-Western samples, samples from Mediterranean societies distinctively emphasized several forms of independence (relative intensity of disengaging [vs. engaging] emotions, happiness based on disengaging [vs. engaging] emotions, dispositional [vs. situational] attribution style, self-construal as different from others, self-directed, self-reliant, self-expressive, and consistent) and interdependence (closeness to in-group [vs. out-group] members, self-construal as connected and committed to close others). Our findings extend previous insights into patterns of cultural orientation beyond commonly examined East–West comparisons to an understudied world region.

DOI： 10.1037/pspa0000342

Cultural differences in explicit and implicit support provision and underlying motivations for self-esteem, closeness, and relational concerns 査読有り

Rina Tanaka, Shaofeng Zheng, Keiko Ishii

FRONTIERS IN PSYCHOLOGY 14 巻頁： 1202729 2023年8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

This research explores how culture influences the motivations underlying explicit (emotional and instrumental) and implicit (companionship and attentiveness) support provision. Two studies (N = 1,106) compared the responses of European Americans and Japanese individuals to a close other’s stressful event. The results showed that European Americans were more likely than Japanese to provide explicit support and more motivated to increase the close other’s self-esteem and feeling of closeness. Conversely, Japanese individuals were more likely to provide attentiveness support, motivated by concern for an entire group and a friend. These findings support the motivation as a mediator hypothesis. On the other hand, the culture as a moderator hypothesis applied to the association between concern for an entire group motivation and implicit support provision. Specifically, concern for an entire group motivation predicted companionship support provision only in Japanese, while it predicted attentiveness support provision mainly in European Americans.

DOI： 10.3389/fpsyg.2023.1202729

クリニカルトピックス音楽運動療法とパルス温熱療法の併用が高齢者の認知機能に与える影響

松永昌宏, 清水暢子, 梅村朋弘, 冨成祐介, 山田恭子, 坪内善仁, 本多伸行, 長谷川昇, 加藤真弓, 望月美也子, 石井敬子, 堀礼子, 若山怜, 成定明彦, 坪井宏仁, 鈴木孝太

BIO Clinica 38 巻 ( 5 ) 頁： 441 - 444 2023年5月

記述言語：日本語出版者・発行元：(株)北隆館

近年,高齢化にともなう認知症の増加は社会問題となっている。本研究では,高齢者の認知機能を改善させるための介入方法として,鳴子を用いた音楽運動療法(Music-Movement Therapy:MMT)とパルス温熱療法の併用に着目し,その効果を検証した。実験の結果,MMTとパルス温熱療法を併用することにより,高齢者の認知機能を効率的に改善させることができる可能性が示唆された。(著者抄録)

Cultural Differences in the Perception of Daily Stress Between European Canadian and Japanese Undergraduate Students 査読有り国際共著

Hajin Lee, Takahiko Masuda, Keiko Ishii, Yuto Yasuda, Yohsuke Ohtsubo

PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 49 巻頁： 571 - 584 2023年4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：Personality and Social Psychology Bulletin

The current research examines cross-cultural differences in people’s daily stress experiences and the role of social orientations in explaining their experiences. Using a situation sampling method, Study 1 collected European Canadian and Japanese undergraduates’ examples of stressful interpersonal and non-interpersonal situations they experienced, measuring participants’ perception of the intensity and frequency of each type of situation. Studies 2 and 3 examined the effects of culture on participants’ reports of stress symptoms under the situations. Study 3 assessed the mediating effects of independence and interdependence between culture and perceived stress. These studies indicated that the situational context moderates the effect of culture on perceptions of stress, showing a different amount of stress from interpersonal situations between Japanese and European Canadian undergraduates. Mediational analyses revealed that independent orientation partially explains the relationship between culture and stress from interpersonal situations. The implications of these results for culture and daily stress are discussed.

DOI： 10.1177/01461672211070360

その他リンク： http://journals.sagepub.com/doi/full-xml/10.1177/01461672211070360

Disgust sensitivity relates to attitudes toward gay men and lesbian women across 31 nations 査読有り国際共著

Florian van Leeuwen;Yoel Inbar;Michael Bang Petersen;Lene Aarøe;Pat Barclay;Fiona Kate Barlow;Mícheál de Barra;D. Vaughn Becker;Leah Borovoi;Jongan Choi;Nathan S. Consedine;Jane Rebecca Conway;Paul Conway;Vera Cubela Adoric;Ekin Demirci;Ana María Fernández;Diogo Conque;Seco Ferreira;Keiko Ishii;Ivana Jakšić;Tingting Ji;Inga Jonaityte;David M. G. Lewis;Norman P. Li;Jason C. McIntyre;Sumitava Mukherjee;Justin H. Park;Boguslaw Pawlowski;David Pizarro;Pavol Prokop;Gerasimos Prodromitis;Markus J. Rantala;Lisa M. Reynolds;Bonifacio Sandin;Barış Sevi;Narayanan Srinivasan;Shruti Tewari;Jose C. Yong;Iris Žeželj;Joshua M. Tybur

Group Processes & Intergroup Relations 26 巻頁： 629 - 651 2023年4月

Cross-cultural adaptation of Chinese international students: Effects of distant and close support-seeking 査読有り

Zheng Shaofeng, Ishii Keiko

FRONTIERS IN PSYCHOLOGY 14 巻頁： 1133487 2023年3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：Frontiers in Psychology

Introduction: Social support-seeking is considered to be an effective way for international students to cope with their acculturative stress and contribute to cross-cultural adaptation. In addition to support from people in the host country (close support), the ease of online communication now allows international students to receive additional support from people back in their home country (distant support). However, little research has investigated whether distant support works as effectively as close support. In two studies, we examined the differential effect of distant and close support-seeking on the psychological adaptation of Chinese international students in the host country and how acculturation orientations relate to the use of these two types of support. Methods: Chinese international students in Japan (Study 1; N = 172) and the United States (Study 2; N = 118) completed an online survey that assessed participants’ host/home culture orientation, distant emotional/instrumental support-seeking, close emotional/instrumental support-seeking, and psychological adaptation. Results: Results showed that distant emotional support-seeking negatively predicted psychological adaptation in the host country. Nevertheless, distant emotional support-seeking alleviated feelings of loneliness in Chinese international students as close emotional support-seeking did (Study 2). Also, the results showed that international students with higher home-culture orientation sought more distant support, whereas those with higher host-culture orientation sought more close support. Further, Chinese-culture orientation increased distant emotional support-seeking, decreasing psychological adaptation as well as loneliness. Discussion: These findings highlight the importance of considering the source and types of support when discussing the implications of social support for the cross-cultural adaptation of international students.

DOI： 10.3389/fpsyg.2023.1133487

研究者の最新動向音楽運動療法と局所的・遠隔的虚血コンディショニングの併用が高齢者の認知機能に与える影響

松永昌宏, 清水暢子, 梅村朋弘, 冨成祐介, 石井敬子, 堀礼子, 若山怜, 成定明彦, 坪井宏仁, 鈴木孝太

Precision Medicine 5 巻 ( 13 ) 頁： 1220 - 1223 2022年12月

記述言語：日本語出版者・発行元：(株)北隆館

近年,高齢化にともなう認知症の増加は社会問題となっている。本研究では,高齢者の認知機能を改善させるための介入方法として,鳴子を用いた音楽運動療法(MMT)と局所的・遠隔的虚血コンディショニング(RIC)の併用に着目し,その効果を検証した。実験の結果,MMTとRICを併用することにより,血管機能の改善を通じて高齢者の認知機能を効率的に改善させることができる可能性が示唆された。(著者抄録)

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招待有り査読有り

石井敬子

心理学評論 65 巻 ( 2 ) 頁： 186 - 204 2022年12月

Individual costs and community benefits: Collectivism and individuals’ compliance with public health interventions 査読有り国際共著

Suyi Leong, Kimin Eom, Keiko Ishii, Marion C. Aichberger, Karolina Fetz, Tim S. Müller, Heejung S. Kim, David K. Sherman

PLOS ONE 17 巻 ( 11 ) 頁： e0275388 - e0275388 2022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：PLoS ONE

Differences in national responses to COVID-19 have been associated with the cultural value of collectivism. The present research builds on these findings by examining the relationship between collectivism at the individual level and adherence to public health recommendations to combat COVID-19 during the pre-vaccination stage of the pandemic, and examines different characteristics of collectivism (i.e., concern for community, trust in institutions, perceived social norms) as potential psychological mechanisms that could explain greater compliance. A study with a cross-section of American participants (N = 530) examined the relationship between collectivism and opting-in to digital contact tracing (DCT) and wearing face coverings in the general population. More collectivistic individuals were more likely to comply with public health interventions than less collectivistic individuals. While collectivism was positively associated with the three potential psychological mechanisms, only perceived social norms about the proportion of people performing the public health interventions explained the relationship between collectivism and compliance with both public health interventions. This research identifies specific pathways by which collectivism can lead to compliance with community-benefiting public health behaviors to combat contagious diseases and highlights the role of cultural orientation in shaping individuals’ decisions that involve a tension between individual cost and community benefit.

DOI： 10.1371/journal.pone.0275388

Mu opioid receptor gene (OPRM1) moderates the influence of perceived parental attention on social support seeking 査読有り国際共著

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

ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 8 巻 ( 3 ) 頁： 281 - 295 2022年9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：Adaptive Human Behavior and Physiology

Objective: Caring, sensitive parenting is known to be associated with higher levels of engagement in support-seeking behaviors among children and young adolescents. However, no study has yet explored the role of perceived parental attention in social support seeking in early adulthood. Growing evidence suggests that the µ-opioid receptor gene polymorphism (OPRM1 A118G) moderates one’s responsiveness to social environments. Prompted by the differential susceptibility theory of gene–environment interaction, the present study examined whether the OPRM1 polymorphism would moderate the association between perceived parental attention and social support seeking in early adulthood. Methods: Six hundred and twenty Japanese undergraduate students self-reported the amount of attention they subjectively perceived their parents to have given them during childhood and completed scales that assess support-seeking behaviors. Clippings of their fingernails were collected for genotyping. Results: The results showed that the interactive effect of perceived parental attention and OPRM1 genotypes on social support seeking was significant. Specifically, perceived parental attention only significantly and positively predicted OPRM1 GG carriers’ social support seeking in response to stress. Conclusions: The findings support the view that OPRM1 polymorphism moderates the association between early experiences and developmental outcomes.

DOI： 10.1007/s40750-022-00192-w

その他リンク： https://link.springer.com/article/10.1007/s40750-022-00192-w/fulltext.html

Neural responses to facial and vocal displays of emotion in Japanese people 査読有り

Yuichi Mori, Yasuki Noguchi, Akihiro Tanaka, Keiko Ishii

Culture and Brain 10 巻 ( 1 ) 頁： 43 - 55 2022年6月

A Brief Acting Experience Fosters Empathic Concern 招待有り査読有り

Keiko Ishii, Tomomi Kanda

Psihologijske teme 31 巻 ( 1 ) 頁： 203 - 214 2022年4月

担当区分：筆頭著者,　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：Psihologijske Teme

Acting is closely related to theory of mind and empathy, which are fundamental abilities to maintain interpersonal relationships and facilitate cooperation among people. Acting experience intervention is known as one instrument to foster theory of mind and empathy; however, empirical evidence on the effects of brief acting experience in a laboratory setting remains scarce. To obtain further evidence to support the effects, we assigned 47 Japanese participants randomly to either an acting condition where they experienced a play in a group of three people in a 60-minute session or a control condition and measured their levels of theory of mind and empathy three times (one day before the intervention, soon after the intervention, and a week after the intervention). As expected, brief acting experience improved the level of empathic concern. However, no effect of acting was found in theory of mind and the other facets of empathy. Implications for future work in applied settings are discussed.

DOI： 10.31820/pt.31.1.10

Serotonin Receptor (HTR2A) Gene Polymorphism Modulates Social Sharing of Happiness in Both American and Japanese Adults 査読有り国際共著

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

JAPANESE PSYCHOLOGICAL RESEARCH 64 巻 ( 2 ) 頁： 181 - 192 2022年4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：Japanese Psychological Research

A single nucleotide polymorphism in the serotonin 2A receptor gene (HTR2A rs6311 guanine [G] vs. adenine [A]) appears associated with positive emotional contagion (social sharing of happiness) in Japanese people. However, it remains unknown whether the HTR2A polymorphism also impacts the social sharing of happiness in Western cultures. The present study thus compared 207 Japanese university students and 200 American adults (including non-students). Social sharing of happiness was examined using a vignette-based questionnaire. Participants were asked to imagine that they were experiencing an emotionally neutral event. At the same time, they were asked to imagine that a friend was experiencing a positive valence event (presence condition), whereas in the other condition such information was not presented (absence condition). Results showed that the G allele carriers felt happier in the presence than in the absence of the friend compared with participants with the AA genotype. Although we did not specifically consider comparability between the two samples, the findings suggest that the effect of HTR2A polymorphisms on social sharing of happiness observed in Japanese populations may be applicable to American populations.

DOI： 10.1111/jpr.12389

Editorial: Culture and Health

その他リンク： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpr.12389

Ishii Keiko, Uchida Yukiko

JAPANESE PSYCHOLOGICAL RESEARCH 64 巻 ( 2 ) 頁： 85 - 89 2022年4月

Test of the Serotonin Transporter Gene × Early Life Stress Interaction Effect on Subjective Well‐Being and Loneliness Among Japanese Young Adults 査読有り国際共著国際誌

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

Japanese Psychological Research 64 巻 ( 2 ) 頁： 193 - 204 2022年4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：Wiley

This study investigated whether aspects of early life environment (quality of parental relationship, frequency of parental violence including disciplinary violence, amount of parental attention, and family income during childhood) would affect one's subjective well-being and loneliness later in life (i.e., during young adulthood). This study also investigated whether the negative influence of early life stress is greater among individuals with the SS genotype of the serotonin transporter-linked polymorphic region (5-HTTLPR) in the serotonin transporter gene. Participants were 568 university students whose genotypes were identified using nail samples. They reported their current levels of subjective well-being and loneliness as well as their recollections of their early family environments. The results showed that less stressful early life environments, such as high levels of parents' relationship quality and parental attention, were positively (negatively) associated with subjective well-being (loneliness), while frequent parental violence was negatively (positively) associated with subjective well-being (loneliness). Nevertheless, the gene × environment interaction effects were consistently non-significant—the SS genotype did not accentuate the effects of early life stress.

DOI： 10.1111/jpr.12376

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

When people avoid a product chosen by others: The effects of the need for uniqueness and the presence of others

Happiness, meaning, and psychological richness. 査読有り国際共著国際誌

Oishi, S., Choi, H., Koo, M., Galinha, I., Ishii, K., Komiya, A., Luhmann, M., Scollon, C., Shin, J., Lee, H., Suh, E. M., Vittersø, J., Heintzelman, S., Kushlev, K., Westgate, E. C., Buttrick, N., Tucker, J., Ebersole, C. R., Axt, J., Gilbert, E., Ng, B. W., Kurtz, J., & Besser, L. L.

Affective Science 1 巻 ( 2 ) 頁： 107 - 115 2020年6月

ISHII Keiko

実験社会心理学研究 59 巻 ( 2 ) 頁： 114 - 118 2020年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：日本グループ・ダイナミックス学会

<p>Previous research has demonstrated that when people have to choose a product for which they do not have a preference and can observe their partners' choices in advance, they are more likely to imitate their partners' choices when choosing privately, whereas they are likely to choose differently when they are with their partners. The present study extends this evidence by testing Japanese participants and examining individual differences in the need for uniqueness. Despite the Japanese cultural norm of interdependence, which is positively associated with conformity, less than half of the participants imitated their partners' choices, whether they chose privately or publicly. Moreover, people with a high need for uniqueness tended to choose a different option when choosing in front of their partners. Implications for the consequences of social influence are discussed.</p>

DOI： 10.2130/jjesp.1909

CiNii Research

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

石井敬子

心理学評論 63 巻 ( 3 ) 頁： 346 - 353 2020年

Is collectivistic forgiveness different from individualistic forgiveness? Dispositional correlates of trait forgivingness in Canada and Japan 査読有り国際共著

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

Canadian Journal of Behavioural Science 51 巻 ( 4 ) 頁： 290-295 2019年10月

Cultural variation in reactions to a group member’s vicarious choice and the role of rejection avoidance 査読有り国際共著

Eisen C, Ishii, K

Frontiers in Psychology 10 巻頁： 1311 2019年6月

Cultural influences in somatosensory amplification and their association with negative affectivity 査読有り

Keiko Ishii

Asian Journal of Social Psychology 22 巻 ( 1 ) 頁： 106-112 2019年3月

Culture and cannabinoid receptor gene polymorphism interact to influence the perception of happiness. 査読有り国際共著

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

PloS one 13 巻 ( 12 ) 頁： e0209552 2018年12月

Ishii K, Eisen C

Frontiers in psychology 9 巻頁： 1426 2018年8月

Culture and Decision Making: Influence of Analytic Versus Holistic Thinking Style on Resource Allocation in a Fort Game 査読有り国際共著

Liman Man Wai Li, Takahiko Masuda, Takeshi Hamamura, Keiko Ishii

Journal of Cross-Cultural Psychology 49 巻頁： 1066 - 1080 2018年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

© 2018, The Author(s) 2018. People have to make different decisions every day, in which culture affects their strategies. This research examined the role of analytic versus holistic thinking style on resource allocation across cultures. We expected that, analytic thinking style, which refers to a linear view about the world where objects’ properties remain stable and separate, would make people concentrate their resource allocation corresponding to the current demand, whereas holistic thinking style, which refers to a nonlinear view that people perceive change to be a constant phenomenon and the universe to be full of interconnected elements, would encourage people to spread out their resource allocation. In Study 1, Hong Kong Chinese, a representative group of holistic cultures, and European Canadians, a representative group of analytic cultures, completed a resource allocation task (i.e., fort game). The results showed that the allocation pattern of European Canadians was more concentrated than that of Hong Kong Chinese and holistic thoughts predicted a less concentrated allocation pattern. To test causality, thinking styles were manipulated in Study 2, in which mainland Chinese were primed with either holistic thinking style or analytic thinking style. The results showed that the allocation pattern was more concentrated in the analytic condition than that in the holistic condition, which was explained by greater perceived predictability in the analytic condition. Implications of these findings on cross-cultural decision-making research and applied research were discussed.

DOI： 10.1177/0022022118778337

A polymorphism of serotonin 2A receptor (5-HT<inf>2A</inf>R) influences delay discounting 査読有り

Keiko Ishii, Masahiro Matsunaga, Yasuki Noguchi, Hidenori Yamasue, Misaki Ochi, Yohsuke Ohtsubo

Personality and Individual Differences 121 巻頁： 193 - 199 2018年1月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

© 2017 Elsevier Ltd. The present study investigated the association between a polymorphism of the serotonin 2A receptor (5-HT 2A R) gene and the form of impulsive choice known as delay discounting. Using a hypothetical situation, we asked Japanese participants to choose between receiving (or paying) a different amount of money immediately or with a specified delay (one week, two weeks, one month, six months, one year, five years, or 25years), and estimated the parameters of intertemporal choice models (exponential, hyperbolic, hyperbolic with exponent, and quasi-hyperbolic). Regardless of the genotypes, the hyperbolic with exponent model, which always indicated minimum AICc (Akaike Information Criterion with small sample correction), fitted better the observed data than the other models. Future gains were discounted more steeply than future losses. Moreover, as expected, individuals with the AA genotype of the 5-HT 2A R A-1438G polymorphism discounted the future more steeply than did individuals with the GG genotype, although this effect was limited to only gains. The findings implied individual differences based on the A-1438G polymorphism in the modulation of serotonin in the reward valuation underlying delay discounting.

DOI： 10.1016/j.paid.2017.03.011