Faculty Profiles - OHIRA, Hideki

Papers - OHIRA, Hideki

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Prolonged effects of acute stress on decision-making under risk : A human psychophysiological study Reviewed

Yamakawa, K., Matsunaga, M., Ohira, H. & Isowa, T.

Frontiers in Human Neuroscience Vol. 10 2016

Mechanism underlying synchronization of brain activity: Comments on Sadato’s article

Ohira Hideki

JAPANESE PSYCHOLOGICAL REVIEW Vol. 59 ( 3 ) page： 283 - 291 2016

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：JAPANESE PSYCHOLOGICAL REVIEW

<p>Studies using hyperscanning have reported coordination of behaviors among 2 persons who performed interactive tasks. Synchronization of brain activity is an underlying mechanism of behavioral coordination. This article proposes a mathematical model (the “Kuramoto model”) which describes a phenomenon called entrainment of oscillator to explain how synchronization of brain activity emerges and which factors affect brain synchronization. A model, including 4 oscillators (inferior frontal gyri and middle temporal gyri in 2 persons) suggested that 1) similarity of oscillation frequencies in brain regions is critical for synchronization of brain activity, 2) patients on the autism spectrum might have different oscillation frequencies in their brain regions resulting in impairment of fluent communication, and 3) learning of important pathways from one person to another person can facilitate synchronization of brain activity, and thus probably can improve communication and behavioral coordination.</p>

DOI： 10.24602/sjpr.59.3_283

CiNii Research

幸福感を高める心理学的介入による心身の健康の増進

松永昌宏, 小林章雄, 柴田英治, 大竹恵子, 大平英樹

Medical Science Digest Vol. 42 ( 1 ) page： 2 - 5 2016

Language：Japanese Publishing type：Research paper (other academic) Publisher：(株)ニュー・サイエンス社

本研究では、幸福感を高めるような心理学的介入の心身の健康状態に対する効果を検証した。実験の結果、毎日起きた出来事について、その時感じた自分の感情を素直に記述して一日を振り返るという、感情体験の自己開示を1週間行うことにより、幸福感の上昇、うつ症状の減少、身体的活性化(交感神経活動の上昇)を促すことが示された。また、幸福感の変化と唾液中CRP濃度(炎症マーカー)・sIgA濃度(免疫機能マーカー)との間に相関が認められた。本研究により、筆記による感情体験の自己開示は心身の健康状態を増進させることが示された。(著者抄録)

Decision-making and physiological responses in public goods game

Saito Natsuki, Ando Yuki, Ohira Hideki

Journal of Human Environmental Studies Vol. 14 ( 1 ) page： 17 - 22 2016

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Society for Human Environmental Studies

A social dilemma has been defined as a situation in which (a) each group member receives a higher payoff for defecting than for cooperative behaviors, and (b) all group members receive a lower payoff if they all defect than if they all cooperate (Dawes, 1980). The free-rider problem is associated with this social dilemma. The public goods game (PGG) is a decision-making task simulating the above social dilemma, and a number of previous studies have indicated that introducing punishment increases cooperation in the PGG. Although many studies have indicated that physiological responses affected by participants' behaviors when performing punishment-related tasks, this association has not been investigated to date in relation to PGG. Therefore, we investigated physiological responses in the PGG to elucidate the association between physiological responses and choices in the PGG. Participants performed both an ordinary PGG and a PGG that included probabilistic punishment. Heart rate (HR) responses were compared when participants contributed and did not contribute in the two types of PGGs. Results indicated that when others' choices were presented in the ordinary PGG, peak HR acceleration was higher after participants choose a non-cooperative behavior than a cooperative behavior, whereas when others' choices were presented in PGG with punishment, HR decelerated after participants choose a non-cooperative behavior than a cooperative behavior. These results suggest that cooperative behaviors in PGG with punishment are associated with punishment given to others, whereas cooperative behaviors in the PGG without punishment are associated with larger rewards without costs. These findings extend our understanding of the relationship between cooperative behaviors and physiological responses associated with social dilemmas.

DOI： 10.4189/shes.14.17

CiNii Research

Value, prediction, and error: Decision-making systems underlying social mind Reviewed

Ohira Hideki

Emotion Studies Vol. 2 ( 1 ) page： 46 - 55 2016

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society for Research on Emotions

<p>Though brain regions which are related to social behaviors and social affects have been widely elucidated, the mechanisms how those regions determine social mind are not understood. Here I suggest that a theoretical framework inspired by research on decision-making and reinforcement learning might be useful to consider the mechanisms underlying human’s social mind. Specifically, it has been argued that three systems of decision-making, the Pavlovian system, goal-directed system, and habit system interact, based on evaluation of values, to determine wide ranges of behaviors of humans and animals. The present article proposes that such framework can be expanded to social behaviors and social affect, to shed new lights on interpretations of significance of the social phenomena and to draw new hypotheses for future empirical studies.</p>

DOI： 10.20797/ems.2.1_46

CiNii Research

Prolonged Effects of Acute Stress on Decision-Making under Risk: A Human Psychophysiological Study.

Yamakawa K, Ohira H, Matsunaga M, Isowa T

Frontiers in human neuroscience Vol. 10 page： 444 2016

A psychobiological perspective on cognition and decision making: views from neuroendocrinological studies

Kimura Kenta, Izawa Shuhei, Ryoke Rie, Yamakawa Kaori, Hakamata Yuko, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： SS-041 - SS-041 2015.9

The physiological response in Public Goods Game with punishment

Saito Natsuki, Ando Yuki, Hayashi Hiroki, Kamide Momoko, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 3EV-031 - 3EV-031 2015.9

Computational science and psychology

Ohira Hideki, Bai Yu, Suzuki Reiji, Ohira Toru

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： IS-008 - IS-008 2015.9

The effect of relative incentive value in anticipating phase

Toyama Asako, Tanabe Hiroki, Ishizuka Akira, Isoda Haruo, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 3AM-057 - 3AM-057 2015.9

Effect of heart rate variability biofeedback on psychophysiological responses following acute stress task

Sugiura Yuko, Matsunaga Masahiro, Sakakibara Masahito, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 2AM-059 - 2AM-059 2015.9

The computational profile of learning in psychopathy.

Oba Takeyuki, Katahira Kentaro, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 3EV-005 - 3EV-005 2015.9

Effects of empathy for in-group on behavioral and psychophysiological responses

Ando Yuki, Saito Natsuki, Hayashi Hiroki, Kamide Momoko, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 3EV-025 - 3EV-025 2015.9

Inverse relationship between empathy and subjective happiness

Matsunaga Masahiro, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： 2EV-103 - 2EV-103 2015.9

Frontiers of study on rumination: some contribution by Japanese researchers

Hasegawa Akira, Nishimura Haruki, Kunisato Yoshihiko, Ohira Hideki

The Proceedings of the Annual Convention of the Japanese Psychological Association Vol. 79 ( 0 ) page： SS-063 - SS-063 2015.9

Serotonin transporter gene polymorphism modulates inflammatory cytokine responses during acute stress

Kaori Yamakawa, Masahiro Matsunaga, Tokiko Isowa, Hideki Ohira

SCIENTIFIC REPORTS Vol. 5 page： 13852 2015.9

Language：English Publishing type：Research paper (scientific journal) Publisher：NATURE PUBLISHING GROUP

Cytokines are important mediators of various stress-related modulations of immune function. A major genetic factor determining inter-individual differences in stress reactivity is polymorphisms of the serotonin (5-hydroxytryptamine, 5HT) transporter (5HTT) gene. A short (S) variant, compared with a long (L) variant, of the promoter region of the 5HTT gene-linked polymorphic region (5HTTLPR) has been related to emotional and stress hyper-reactivity. The present study examined whether the 5HTTLPR can modulate responses of inflammatory cytokines under acute stress. Nine Japanese male participants carrying two copies of the S alleles and nine Japanese males carrying S and L alleles underwent the Trier Social Stress Test (TSST). Inflammatory cytokines, endocrine parameters, heart rate and subjective stress were measured before, during and after the task. The participants carrying the SS alleles, but not those carrying the SL alleles, showed a significant increase of IL-1 beta immediately after TSST. This hyper-reactivity to acute stress in individuals with the SS alleles was also observed in their heart rate and cortisol levels. These results suggest that the S allele of the 5HTTLPR is consistently associated with stress reactivity in multi-level stress-related biological systems.

DOI： 10.1038/srep13852

Web of Science

Scopus

PubMed

Insular neural system controls decision-making in healthy and methamphetamine-treated rats.

Mizoguchi H, Katahira K, Inutsuka A, Fukumoto K, Nakamura A, Wang T, Nagai T, Sato J, Sawada M, Ohira H, Yamanaka A, Yamada K

Proceedings of the National Academy of Sciences of the United States of America Vol. 112 ( 29 ) page： E3930 - 9 2015.7

Insular neural system controls decision-making in healthy and methamphetamine-treated rats

Mizoguchi H., Katahira K., Inutsuka A., Fukumoto K., Nakamura A., Wang T., Nagai T., Sato J., Sawada M., Ohira H., Yamanaka A., Yamada K.

Proceedings of the National Academy of Sciences of the United States of America Vol. 112 ( 29 ) page： E3930 - E3939 2015.7

Language：English Publishing type：Research paper (scientific journal) Publisher：Proceedings of the National Academy of Sciences of the United States of America

Patients suffering from neuropsychiatric disorders such as substance-related and addictive disorders exhibit altered decision-making patterns, which may be associated with their behavioral abnormalities. However, the neuronal mechanisms underlying such impairments are largely unknown. Using a gambling test, we demonstrated that methamphetamine (METH)-treated rats chose a high-risk/high-reward option more frequently and assigned higher value to high returns than control rats, suggestive of changes in decision-making choice strategy. Immunohistochemical analysis following the gambling test revealed aberrant activation of the insular cortex (INS) and nucleus accumbens in METH-treated animals. Pharmacological studies, together with in vivo microdialysis, showed that the insular neural system played a crucial role in decision-making. Moreover, manipulation of INS activation using designer receptor exclusively activated by designer drug technology resulted in alterations to decision-making. Our findings suggest that the INS is a critical region involved in decision-making and that insular neural dysfunction results in risk-taking behaviors associated with altered decision-making.

DOI： 10.1073/pnas.1418014112

Scopus

Insular neural system controls decision-making in healthy and methamphetamine-treated rats

Mizoguchi Hiroyuki, Katahira Kentaro, Inutsuka Ayumu, Fukumoto Kazuya, Nakamura Akihiro, Wang Tian, Nagai Taku, Sato Jun, Sawada Makoto, Ohira Hideki, Yamanaka Akihiro, Yamada Kiyofumi

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Vol. 112 ( 29 ) page： E3930 - E3939 2015.7

Insular neural system controls decision-making in healthy and methamphetamine-treated rats. Reviewed

2015.7

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Papers - OHIRA, Hideki