国際誌論文データベース

Ogihara, Y. (荻原祐二), & Ito, A. (伊藤篤希) (2022).
Unique names increased in Japan over 40 years: Baby names published in municipality newsletters show a rise in individualism, 1979-2018.
個性的な名前は40年間にわたって増加している：地方自治体の広報誌に掲載された新生児の名前は個人主義傾向の増加を示している, 1979-2018
Current Research in Ecological and Social Psychology, 3, 100046.
https://doi.org/10.1016/j.cresp.2022.100046 

We examined whether Japanese culture became more individualistic by investigating baby names published in municipality newsletters for 40 years between 1979 and 2018. Previous research has shown that the rates of unique names increased in Japan between 2004 and 2018, suggesting a rise in uniqueness-seeking and individualism. However, it was unclear whether the trend after the 2000s was found before the 2000s. To discuss cultural changes, it is desirable to examine trends over longer periods of time. Unlike in the U.S., databases of names given to newborns in previous years did not exist in Japan. Thus, we collected baby names published in municipality newsletters. Results showed that over the 40 years, unique names increased in all of the municipalities examined, indicating an increase in uniqueness-seeking and individualism in Japan. The current research investigated cultural changes for a longer time period and presented further evidence of rising individualism in Japan.

Wang, K., Goldenberg, A., Miller, J. K. et al. (2021).
A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic.
[Registered Report] 新型コロナウィルス感染症流行下におけるネガティブ情動に対する情動制御方略の効果：超多国間実験による検証
Nature Human Behaviour, 5, 1089-1110. 
https://doi.org/10.1038/s41562-021-01173-x

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world.

調査票の日本語訳および日本データの収集を山田祐樹（九州大学）・石井辰典（日本女子大学）・国里愛彦（専修大学）・角南直幸（Delaware Data Innovation Lab）・井隼経子（福岡工業大学）が担当した。この活動に際し、日本心理学会の「新型コロナウイルス感染拡大に関連した実践活動及び研究」の助成を受けた。

Psychological Science Accelerator Self-Determination Theory Collaboration (2022).
A global experiment on motivating social distancing during the COVID-19 pandemic.
社会的距離拡大方略を動機づけるものは何か？新型コロナウィルス流行下における超多国間実験
Proceedings of the National Academy of Sciences, 119(22), e2111091119.
https://doi.org/10.1073/pnas.2111091119

Finding communication strategies that effectively motivate social distancing continues to be a global public health priority during the COVID-19 pandemic. This cross-country, preregistered experiment (n = 25,718 from 89 countries) tested hypotheses concerning generalizable positive and negative outcomes of social distancing messages that promoted personal agency and reflective choices (i.e., an autonomy-supportive message) or were restrictive and shaming (i.e., a controlling message) compared with no message at all. Results partially supported experimental hypotheses in that the controlling message increased controlled motivation (a poorly internalized form of motivation relying on shame, guilt, and fear of social consequences) relative to no message. On the other hand, the autonomy-supportive message lowered feelings of defiance compared with the controlling message, but the controlling message did not differ from receiving no message at all. Unexpectedly, messages did not influence autonomous motivation (a highly internalized form of motivation relying on one’s core values) or behavioral intentions. Results supported hypothesized associations between people’s existing autonomous and controlled motivations and self-reported behavioral intentions to engage in social distancing. Controlled motivation was associated with more defiance and less long-term behavioral intention to engage in social distancing, whereas autonomous motivation was associated with less defiance and more short- and long-term intentions to social distance. Overall, this work highlights the potential harm of using shaming and pressuring language in public health communication, with implications for the current and future global health challenges.

調査票の日本語訳および日本データの収集を山田祐樹（九州大学）・石井辰典（日本女子大学）・国里愛彦（専修大学）・角南直幸（Delaware Data Innovation Lab）・井隼経子（福岡工業大学）が担当した。またこの活動に際し、日本心理学会「新型コロナウイルス感染拡大に関連した実践活動及び研究」の助成を受けた。

Ishii, T.（石井辰典）, & Watanabe, K. (2022).
Do empathetic people have strong religious beliefs? Survey studies with large Japanese samples.
共感的な人々は固い宗教的信念を持つだろうか？：大規模日本人サンプルを用いた検証
The International Journal for the Psychology of Religion.
http://dx.doi.org/10.1080/10508619.2022.2057059

The exploration of personality factors to explain individual differences in religiosity has demonstrated a link between empathic concern and religious beliefs using the Empathic Concern subscale of the Interpersonal Reactivity Index (IRI-EC). Research in the cognitive science of religion emphasized the role of empathizing ability related to mentalizing in acquisition of religious belief and has demonstrated the relationship between the Empathy Quotient (EQ) and religious belief. The current study was designed to compare the strength of relationships between religious belief and two representative measures of empathy (the IRI-EC and the EQ). Study 1 aimed to statistically evaluate the strength of the relationship between the EQ/IRI-EC and religious belief with four Japanese samples (Ns = 207, 155, 208, 183). The mini meta-analysis results with random effect model indicated that the effect size (semi partial correlation, r_sp) of the IRI-EC (r_sp = .120, 95%CI [.0002, .237]) was larger than that of the EQ (r_sp = .074, 95%CI [−.0001, .147]). Moreover, these results were confirmed by Study 2 (N = 1440). Thus, the present study provided reliable evidence of the link between empathy and religious belief in non-Western samples. We discuss how empathic concern and mentalizing-related empathy contribute to acquiring religious beliefs.

Lee, S. (李受珉), Shimizu, H., & Nakashima, K. I (中島健一郎). (2022). 
Shift-and-Persist Strategy: Tendencies and Effect on Japanese Parents and Children's Mental Health.
Shift-and-Persist Strategy: 日本人親子の類似性とメンタルヘルスへの影響
Japanese Psychological Research
https://doi.org/10.1111/jpr.12421

Low socioeconomic status has various adverse effects on health, which can be mitigated through the shift-and-persist (S-P) strategy. Studies have focused on how this strategy can affect health in the face of adversity. However, that children learn this strategy from positive role models, such as parents, is an unexamined precondition of the theory. This study presents one bit of supporting evidence for this precondition by examining the similarity in S-P among parent–child dyads using the actor-partner interdependence model. We also examine parent and child strategies related to depressive tendencies based on mixed results in relevant research. The results from 309 parent–child pairs indicate that shifting and persisting tendencies and depressive tendencies were similar among the parent–child pairs. Furthermore, regardless of their socioeconomic status, the parents’ and children’s persisting scores predicted lower levels of depressive tendencies as actor effects. Although this study does not fully support S-P theory, it provides important insights regarding similar patterns of strategic tendencies between parents and children and highlights the importance of positive role models.

Shimizu, Y. (清水佑輔), Osaki, S., Hashimoto, T. (橋本剛明), & Karasawa, K. (唐沢かおり) (2022).
Social acceptance of smart city projects: Focus on the Sidewalk Toronto case.
スマートシティにおける社会的受容：トロントのケースに着目して
Frontiers in Environmental Science, 10, 898922. 
https://doi.org/10.3389/fenvs.2022.898922

We focused on Sidewalk Toronto, where the lack of trust in the business operators declined the social acceptance of the project. There are two main reasons for selecting Sidewalk Toronto as the focus of this research. First, Sidewalk Toronto has been extensively discussed in previous studies as a representative example of a large-scale smart city project whose decline in social acceptance may have caused its cancellation. Second, although Sidewalk Toronto is a public utility, the development involved the sister company of Google, a global data giant with a head office outside of Canada. As a result, to increase the social acceptance of smart city projects, we found that business operators should rigorously handle individual data, transparently implement projects, and provide an appropriate scope for the public authority. This research provides new perspectives for a wide range of research areas (e.g., environmental science, urban planning, and psychology) that aim to enhance the social acceptance of smart city projects. This research is also meaningful for business operators who work with the community. Future research will compare a variety of cases using interviews with citizens residing in cities with failed/successful smart city projects.

Kanemasa, Y. (金政祐司), Miyagawa, Y. (宮川裕基), & Arai, T. (荒井崇史). (2022).
Do the Dark Triad and psychological intimate partner violence mutually reinforce each other? An examination from a four-wave longitudinal study.
Dark Triad と心理的IPV は相互に強化し合うのか？4 波の縦断調査からの検討
Personality and Individual Differences. 196, 111714. 
https://doi.org/10.1016/j.paid.2022.111714

Although cross-sectional research showed a correlation between the Dark Triad and intimate partner violence (IPV), it was unclear whether the Dark Triad facilitated violence toward partners or whether violent acts fostered the dark personality traits. We aimed to statistically clarify the causal relationships between the Dark Triad traits and psychological IPV perpetration in romantic relationships. We conducted a longitudinal study every four months for one year across four waves in a sample of individuals who were currently in romantic relationships. A total of 1392 individuals (Mage = 29.73, SDage = 5.92) who dated the same partners throughout completed the four waves of surveys that measured the Dark Triad traits, psychological IPV, and demographic variables. Cross-lagged panel models revealed consistent patterns in the associations between each of the Dark Triad traits and psychological IPV perpetration throughout the four waves. Machiavellianism and psychological IPV perpetration increased each other. Psychological IPV perpetration reinforced the tendency for psychopathy, but not vice versa. Narcissism promoted future psychological IPV perpetration, but not vice versa. Our study illustrates how the Dark Triad traits accelerate psychological violence toward romantic partners and how such violence fosters the dark side of personality.

Naito, A. (内藤碧), Katahira, K. & Kameda, T. (亀田達也) (2022).
Insights about the common generative rule underlying an information foraging task can be facilitated via collective search.
情報探索課題を生成する共通法則の理解は、集団での探索によって促進される
Scientific Reports, 12, 8047.
https://doi.org/10.1038/s41598-022-12126-3

Social learning is beneficial for efficient information search in unfamiliar environments (“within-task” learning). In the real world, however, possible search spaces are often so large that decision makers are incapable of covering all options, even if they pool their information collectively. One strategy to handle such overload is developing generalizable knowledge that extends to multiple related environments (“across-task” learning). However, it is unknown whether and how social information may facilitate such across-task learning. Here, we investigated participants’ social learning processes across multiple laboratory foraging sessions in spatially correlated reward landscapes that were generated according to a common rule. The results showed that paired participants were able to improve efficiency in information search across sessions more than solo participants. Computational analysis of participants’ choice-behaviors revealed that such improvement across sessions was related to better understanding of the common generative rule. Rule understanding was correlated within a pair, suggesting that social interaction is a key to the improvement of across-task learning.

Shimizu, Y. (清水佑輔), Hashimoto, T. (橋本剛明), & Karasawa, K. (唐沢かおり) (2022). 
Decreasing anti-elderly discriminatory attitudes: Conducting a 'Stereotype Embodiment Theory'-based intervention. 
高齢者に対する差別的態度の軽減：ステレオタイプ・エンボディメント理論に基づいた介入の実施
European Journal of Social Psychology, 52(1), 174-190. 
https://doi.org/10.1002/ejsp.2823

Stereotype Embodiment Theory (SET) implies that people who hold negative attitudes towards the elderly are more likely to experience a decline in various cognitive/physical functions themselves. Anti-elderly discriminatory attitudes, which negatively affect the elderly’s health status, could be reduced by communicating the contents of SET to non-elderly people. To weaken anti-elderly discriminatory attitudes, in Study 1, we had participants read about SET and related empirical findings (SET intervention), which intended to increase their self-interested motives for avoiding anti-elderly discrimination. In Study 2, we conducted an ‘integrated intervention’ containing a SET intervention and one selected aspect of educational intervention (i.e., presenting some information about some commonly misunderstood aspects of the elderly). Consequently, the integrated/SET interventions reduced participants’ anti-elderly discriminatory attitudes and these effects persisted for at least 1 week. Our new interventions will be useful for those who work with the elderly.

Kameda, T. (亀田達也), Toyokawa, W., & Tindale, R.S. (2022). 
Information aggregation and collective intelligence beyond the wisdom of crowds. 
Nature Reviews Psychology.
「群衆の知恵」を超える情報統合と集合的知性
https://doi.org/10.1038/s44159-022-00054-y

In humans and other gregarious animals, collective decision-making is a robust behavioural feature of groups. Pooling individual information is also fundamental for modern societies, in which digital technologies have exponentially increased the interdependence of individual group members. In this Review, we selectively discuss the recent human and animal literature, focusing on cognitive and behavioural mechanisms that can yield collective intelligence beyond the wisdom of crowds. We distinguish between two group decision-making situations: consensus decision-making, in which a group consensus is required, and combined decision-making, in which a group consensus is not required. We show that in both group decision-making situations, cognitive and behavioural algorithms that capitalize on individual heterogeneity are the key for collective intelligence to emerge. These algorithms include accuracy or expertise-weighted aggregation of individual inputs and implicit or explicit coordination of cognition and behaviour towards division of labour. These mechanisms can be implemented either as ‘cognitive algebra’, executed mainly within the mind of an individual or by some arbitrating system, or as a dynamic behavioural aggregation through social interaction of individual group members. Finally, we discuss implications for collective decision-making in modern societies characterized by a fluid but auto-correlated flow of information and outline some future directions.

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