A5060905403- Experimental Behavioral Economics Studies
- Evolutionary Game Theory and Cooperation
- Social and Intergroup Psychology
- Psychology of Moral and Emotional Judgment
- Evolutionary Psychology and Human Behavior
- Cultural Differences and Values
- Multiple Sclerosis Research Studies
- Forgiveness and Related Behaviors
- Powdery Mildew Fungal Diseases
- Psychological Well-being and Life Satisfaction
- Emotions and Moral Behavior
- Grief, Bereavement, and Mental Health
- Decision-Making and Behavioral Economics
- Death Anxiety and Social Exclusion
- Mental Health Research Topics
- Health disparities and outcomes
- Leadership, Behavior, and Decision-Making Studies
- Environmental Education and Sustainability
- Migration, Health and Trauma
- Conflict Management and Negotiation
- Asian Geopolitics and Ethnography
- Behavioral Health and Interventions
- Emotional Intelligence and Performance
- Social Power and Status Dynamics
- Education, Safety, and Science Studies
Kochi University of Technology
2015-2024
Kwansei Gakuin University
2023
Hiroshima Bunka Gakuen University
2014
Kobe University
2011-2014
Hokkaido University
2007-2011
Japan Society for the Promotion of Science
2011
Japan Society for the Promotion of Science London
2011
Nagano University
2010
Flinders University
2010
The strong reciprocity model of the evolution human cooperation has gained some acceptance, partly on basis support from experimental findings. observation that unfair offers in ultimatum game are frequently rejected constitutes an important piece evidence for reciprocity. In present study, we have challenged idea rejection response provides assumption held by theorists negative observed is inseparably related to positive as two sides a preference fairness. prediction inseparable...
Two explanations of why shared group membership promotes cooperation in social dilemmas were compared. According to the fear—greed model identity proposed by Simpson (2006), reduces greed but not fear and, thus, should promote altruistic behavior toward in-group members absence fear. heuristic Yamagishi and colleagues, is a `ticket' enter generalized exchange system; people are predicted behave altruistically when it made salient that no system operates group. We tested these models dictator...
People to be born in the future have no direct influence on current affairs. Given disconnect between people who are currently living and those will inherit planet left for them, individuals alive tend more oriented toward present, posing a fundamental problem related sustainability. In this study, we propose new framework reconciling present whereby some generation serve as an imaginary that negotiates with real-world present. Through laboratory-controlled intergenerational sustainability...
We extend the logic of Haselton and Buss's (2000) error management theory to domain social exchange propose that a psychological mechanism, referred as heuristic (SEH), produces certain cognitive biases affect how individuals manage these errors. predicted SEH would remain dormant in who failed realize they were situation involved exchange. In first experiment ( n = 78), PD players had chance, before played game, think both about nature game playing their partner's choice less cooperative...
Japanese participants in Study 1 exhibited a self‐effacing tendency when no reason for their self‐evaluation was provided. However, they self‐enhancing were offered monetary reward the correct evaluation. In 2, Americans, especially American men, whereas making evaluation presented. This cultural difference disappeared provided with correctly evaluating performance level. These results support view that modesty observed among is ‘default strategy’ to avoid offending others.
The mere presence of a potential threat attack was found to be sufficient lead significant proportion participants engage in preemptive attacks toward threats; this response occurred even without an incentive for either party the other. We developed new experimental game—the strike game (PSG)—to demonstrate tendency defensive aggression. also that rate at which attacked individual representing not influenced by their minimal group membership; were no less likely preemptively member own and...
Cognitive impairment could affect quality of life for patients with multiple sclerosis (MS), and cognitive function may be correlated several factors such as depression fatigue. This study aimed to evaluate in Japanese MS the association between apathy, fatigue, depression. The Brief Repeatable Battery Neuropsychological tests (BRB-N) was performed 184 163 healthy controls matched age, gender, education. Apathy Scale (AS), Fatigue Questionnaire (FQ), Beck Depression Inventory Second Edition...
According to the theory of bounded generalized reciprocity (BGR), intergroup contexts afford individuals assumption that indirect is by group membership, and this shapes ingroup favouritism in cooperation. The hypothesized result favouritisms via two pathways: it leads people behave ways earn maintain a positive reputation eyes ingroup, but not outgroup, members (the management hypothesis), expect other be more cooperative than outgroup expectation hypothesis). In words, BGR offers parallel...
Japanese ( N = 48) and New Zealander 55) participants were first assigned to one of two minimal groups, then played a prisoner's dilemma game twice with an ingroup member outgroup member. In the games they (or outgroup) member, their partner knew another's group memberships (mutual‐knowledge condition). unilateral‐knowledge condition, only membership partner, but did not know participant. Ingroup bias in cooperation emerged mutual‐knowledge condition both countries; no emerged. Mediational...
The Brief International Cognitive Assessment for MS (BICAMS) is a practical battery measuring cognitive function in multiple sclerosis (MS).We aimed to validate Japanese version of the BICAMS patients with and healthy controls.The Symbol Digit Modalities Test (SDMT), California Verbal Learning Test-Second Edition (CVLT2) Visuospatial Memory Revised (BVMTR) were administered 156 126 controls (HCs). was re-administered subset 27 30 HCs.The mean (±SD) raw scores HC groups as follows: SDMT: 47.9...
Recent experimental studies have accumulated evidence about self-punishment.In accordance with the evolutionary perspective that shame has a reputation-maintenance function, we speculated would promote self-punishment.Accordingly, tested whether proneness to predict first phase of experiment, 98 undergraduates completed Test Self-Conscious Affect (TOSCA), standard measure and guilt.About two months later, 50 original participants took part in self-punishment which they all unintentionally...
Using a recently created preemptive strike game (PSG) with 176 participants, we investigated if the motivations of spite and/or fear promotes aggression that requires small cost to aggressor and imposes larger on opponent, confirmed earlier finding does but not promote intergroup when groups are characterized as minimal groups; additionally, rate did vary according group membership opponent. The PSG represents situation in which both can logically drive players choose an option against...
In six studies, we examined the accuracy and underpinnings of damaging stereotype that feminists harbor negative attitudes toward men. Study 1 ( n = 1,664), feminist nonfeminist women displayed similarly positive 2 3,892) replicated these results in non-WEIRD countries among male participants. 3 198) extended them to implicit attitudes. Investigating mechanisms underlying feminists’ actual perceived attitudes, Studies 4 2,092) 5 (nationally representative UK sample, 1,953) showed (vs....
Abstract The target article offers a game-theoretical analysis of primitive intergroup aggression (i.e., raiding) and discusses difficulties in achieving peace. We argue the does not capture actual strategy space, missing out “do-nothing.” Experimental evidence robustly shows people prefer doing nothing against out-group members over cooperating with/attacking them. Thus, overestimates likelihood aggression.
Stress hormones have been associated with temporal discounting. Although time-discount rate is shown to be stable over a long term, no study date examines whether individual differences in stress could predict individuals' rates the relatively distant future (e.g., six month later), which of interest neuroeconomics stress-addiction association.We assessed 87 participants' salivary hormone (cortisol, cortisone, and alpha-amylase) levels hyperbolic discounting delayed rewards consisting three...
Abstract Background To improve quality of life (QOL) in patients with multiple sclerosis (MS), it is important to decrease disability and prevent relapse. The aim this study was examine the causal mutual relationships contributing QOL Japanese MS, develop path diagrams, explore interventions potential patient QOL. Methods Data 163 MS were obtained using Functional Assessment (FAMS) Nottingham Adjustment Scale-Japanese version (NAS-J) tests, as well four additional factors that affect...
In this study, we conducted a laboratory experiment to assess preemptive striking by and towards individuals or groups. the framework of strike game, set following four conditions: one person faced another person, three-person group, group an individual, group. Previous studies have revealed that greed is activated when participants belong while fear interact with further, attacking behaviors in game are driven fear. These observations led hypothesis high attack rates would be realized...