Faculty Profiles - OHIRA, Hideki

Papers - OHIRA, Hideki

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Psychological and physiological responses accompanying positive emotions elicited on seeing favorite persons

Matsunaga M., Yamauchi T., Nogimori T., Konagaya T., Ohira H.

Journal of Positive Psychology Vol. 3 ( 3 ) page： 192 - 201 2008.7

Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Positive Psychology

Positive emotions are evoked on seeing one's favorite person. To investigate the psychological and physiological responses accompanying these positive emotions, we simultaneously recorded various parameters such as the mood state, heart rate, skin conductance level (SCL), serum levels of catecholamines, and proportions of T cells and natural killer (NK) cells among the lymphocytes while participants viewed films featuring their favorite persons. The participants reported that they felt better and invigorated; in addition, SCL and proportion of NK cells in peripheral blood increased significantly, and these physiological changes were positively correlated. These results suggest that positive emotions elicited on seeing a favorite person may lead to psychological and physiological activation and, more importantly, may promote health.

DOI： 10.1080/17439760801999560

Scopus

*Imaging brain and immune association accompanying cognitive appraisal of an acute stressor. Reviewed

Ohira, H., Isowa, T., Nomura, M., Ichikawa, N., Kimura, K., Miyakoshi, M., Iidaka, T., Fukuyama, S., Nakajima, T., Yamada, J.

Neuroimage Vol. 22 ( 3 ) page： 408-417 2008.3

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Activities of brain, cardiovascular, endocrine, and immune systems were measured simultaneously and their functional association was examined during an acute stress task where controllability of the stressor was manipulated experimentally. Results revealed that neural network in the orbitofrontal and medial prefrontal cortices is involved in evaluation of controllability and top down modulation over peripheral physiological responses.

Associations among central nervous, endocrine, and immune activities when positive emotions are elicited by looking at a favorite person.

Matsunaga M, Isowa T, Kimura K, Miyakoshi M, Kanayama N, Murakami H, Sato S, Konagaya T, Nogimori T, Fukuyama S, Shinoda J, Yamada J, Ohira H

Brain, behavior, and immunity Vol. 22 ( 3 ) page： 408 - 17 2008.3

Associations among central nervous, endocrine, and immune activities when positive emotions are elicited by looking at a favorite person Reviewed

Masahiro Matsunaga, Tokiko Isowa, Kenta Kimura, Makoto Miyakoshi, Noriaki Kanayama, Hiroki Murakami, Sayaka Sato, Toshihiro Konagaya, Tsuyoshi Nogimori, Seisuke Fukuyama, Jun Shinoda, Jitsuhiro Yamada, Hideki Ohira

BRAIN BEHAVIOR AND IMMUNITY Vol. 22 ( 3 ) page： 408 - 417 2008.3

Language：English Publishing type：Research paper (scientific journal) Publisher：ACADEMIC PRESS INC ELSEVIER SCIENCE

Recent studies on psychoneuroimmunology have indicated that positive psychological events are related to immune functions; however, limited information is available regarding associations among the central nervous, endocrine, and immune systems when positive emotions are elicited. In the present study, we demonstrated associations among these systems by simultaneously recording brain, endocrine, and immune activities when positive emotions were evoked in participants as they watched films featuring their favorite persons. Interestingly, the activity of peripheral circulating natural killer cells and the peripheral dopamine level were elevated while participants experienced positive emotions, and these values were positively correlated. The following brain regions were significantly activated in the positive condition relative to the control condition: medial prefrontal cortex, thalamus, hypothalamus, subcallosal gyrus, posterior cingulate cortex, superior temporal gyrus, and cerebellum. Further, covariate analyses indicated that these brain regions were temporally associated with endocrine and immune activities. These results suggest that while an individual experiences positive emotions, the central nervous, endocrine, and immune systems may be interrelated and attraction for favorite persons may be associated with the activation of the innate immune function via the dopaminergic system. (c) 2007 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.bbi.2007.09.008

Web of Science

Associations among central nervous, endocrine, and immune activities when positive emotions are elicited by looking at a favorite person

Matsunaga M., Isowa T., Kimura K., Miyakoshi M., Kanayama N., Murakami H., Sato S., Konagaya T., Nogimori T., Fukuyama S., Shinoda J., Yamada J., Ohira H.

Brain, Behavior, and Immunity Vol. 22 ( 3 ) page： 408 - 417 2008.3

Language：English Publishing type：Research paper (scientific journal) Publisher：Brain, Behavior, and Immunity

DOI： 10.1016/j.bbi.2007.09.008

Scopus

Associations among central nervous, endocrine, and immune activities when positive emotions are elicited by looking at a favorite person

Matsunaga Masahiro, Isowa Tokiko, Kimura Kenta, Miyakoshi Makoto, Kanayama Noriaki, Murakami Hiroki, Sato Sayaka, Konagaya Toshihiro, Nogimori Tsuyoshi, Fukuyama Seisuke, Shinoda Jun, Yamada Jitsuhiro, Ohira Hideki

BRAIN BEHAVIOR AND IMMUNITY Vol. 22 ( 3 ) page： 408 - 417 2008.3

Imaging brain and immune association accompanying cognitive appraisal of an acute stressor Reviewed

Hideki Ohira, Tokiko Isowa, Michio Nomura, Naho Ichikawa, Kenta Kimura, Makoto Miyakoshi, Tetsuya Lidaka, Seisuke Fukuyama, Toshihiko Nakajima, Jitsuhiro Yamada

NEUROIMAGE Vol. 39 ( 1 ) page： 500 - 514 2008.1

Language：English Publishing type：Research paper (scientific journal) Publisher：ACADEMIC PRESS INC ELSEVIER SCIENCE

Acute stress elicits multiple responses in autonomic, endocrine, and immune systems. Cognitive appraisal is believed to be one important modulator of such stress responses. To investigate brain substrates of crosstalks between the homeostasis-maintaining systems accompanying appraisal of stressor controllability, we simultaneously recorded regional cerebral blood flow (rCBF) using O-15-water positron emission tomography, cardiovascular indices (heart rate (HR) and blood pressure (BP)), neuroendocrine indices (concentrations of epinephrine, norepinephrine, and adrenocorticotropic hormone (ACTH) in blood), and immune indices (proportions of subsets of lymphocytes (NK cells, helper T cells, cytotoxic T cells, and B cells) in blood), in 11 male subjects who performed a mental arithmetic task with either high controllability (HC) and low controllability (LC). The LC task resulted in less sense of control in subjects than the HC task. Significant increases of rCBF in the medial and lateral orbitofrontal cortices (OFC), and in the medial and lateral prefrontal cortices (MPFC, LPFC) were observed by subtracting the HC task from the LC task. More importantly, significant positive correlations between rCBF and HR, BP, and NK cells were commonly found in the OFC and MPFC during the LC tasks, but not during the HC tasks. The present results showed for the first time that the prefrontal neural network including the OFC and MPFC might be one pivotal region for bi-directional functional association between the brain and peripheral autonomic and immune activities accompanying appraisal of an acute stressor. (C) 2007 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.neuroimage.2007.08.017

Web of Science

Scopus

PubMed

感情鈍磨現象の2様態 : 離人症状とサイコパシーにおける感情鈍磨現象の検討 Reviewed

金山範明 , 大隅尚広 , 飯村里沙 , 余語真夫 , 大平英樹

パーソナリティ研究 Vol. 17 ( 1 ) page： 104-107 2008

Associations among central nervous, endocrine, and immune activities when positive emotions are elicited by looking at a favorite person. Reviewed

Matsunaga, M., Isowa, T., Kimura, K., Miyakoshi, M., Kanayama, N., Murakami, H., Sato, S., Konagaya, T., Nogimori, T., Fukuyama, S., Shinoda, J., Yamada, J., & Ohira, H.

Brain Behavior and Immunity ( 22 ) page： 408-417 2008

Psychological and physiological responses accompanying positive emotions elicited on seeing favorite persons. Reviewed

Matsunaga, M., Yamauchi, T., Nogimori, T., Konagaya, T., & Ohira, H.

The Journal of Positive Psychology ( 3 ) page： 192-201 2008

Sleep processes in good sleeper and poor sleeper

Yamakawa Kaori, Mizuta Toshiro, Fujisawa Kiyoshi, Ohira Hideki

Journal of Human Environmental Studies Vol. 6 ( 2 ) page： 57 - 63 2008

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

In this study, we investigated sleep profiles in good sleeper and poor sleeper classified by subjective report of daily sleep state. Auditory evoked potentials (AEP), N300 and N550, were measured in order to clarify the relationship between modulation of arousal level and attentional system during sleep. Six healthy undergraduate students participated in this experiment. Based on a questionnaire of sleep latency, three subjects with easy sleep initiation (good sleeper: GS, > 20 minutes) and another three subjects with difficult sleep initiation (poor sleeper: PS, < 30 minutes) were selected. We conducted three nights' experiments after one night sleep for habituating to experimental environment: the first night is control condition, the second night is the first stimulation condition, and the third night is the second stimulation condition. The stimulus used in this study was pure tone (60dB, 1000Hz) lasting 0.1 sec at 10 sec SOA. The sleep polygraph was recorded in all condition, and AEP was also recorded in two stimulation conditions. The data until the end of the first sleep cycle were analyzed. As the result, we observed that sleep latency was shorter and the appearance rate of deep sleep was lower in GS group compared to PS group. In addition, greater N550 amplitude in GS group suggests that subjects in GS group strongly pay attention to stimulus from outwards. Therefore we revealed the possibility that GS group has difficulty to maintain deep sleep by hyperactivity of attentional system, although the sleep latencies of GS group subjects were short.

DOI： 10.4189/shes.6.2_57

CiNii Research

Depersonalization, Psychopathy, and Two Types of Emotional Deficiency

Kanayama Noriaki, Osumi Takahiro, Iimura Risa, Yogo Masao, Ohira Hideki

The Japanese Journal of Personality Vol. 17 ( 1 ) page： 104 - 107 2008

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Personality Psychology

Emotional process at times goes awry. For instance, depersonalization disorder includes emotional detachment, which is evoked sometimes by stressful events, just like a common symptom of acute stress disorder. Similarly, psychopathy is characterized by weak emotional responses. However, although they appear to have something in common, these phenomena are not completely the same, and each has some different function for or influence on behavior. We investigated the differences between emotional detachment in depersonalization and weakened emotion in psychopathy, using Emotional Processing Scale (EPS). Path analysis revealed that emotional malfunctions in depersonalization could be separated into dissociation, which was common with primary psychopathy, and suppression, uncontrollability, and confusion, which were common with secondary psychopathy.

DOI： 10.2132/personality.17.104

CiNii Research

感情鈍磨現象の2様態-離人症状とサイコパシーにおける感情鈍磨現象の検討パーソナリティ研究 Reviewed

余語真夫, 大平英樹

17 page： 104 - 107 2008

感情鈍磨現象の2様態 : 離人症状とサイコパシーにおける感情鈍磨現象の検討 Reviewed

金山範明, 大隅尚広, 飯村里沙, 余語真夫, 大平英樹

パーソナリティ研究 Vol. 17 ( 1 ) page： 104-107 2008

Implicit change detection: Evidence from event-related brain potential

Kimura Motohiro, Katayama Junichi, Ohira Hideki

INTERNATIONAL JOURNAL OF PSYCHOLOGY Vol. 43 ( 3-4 ) page： 318 - 318 2008

Functional association of brain and somatic activities accompanying reversal learning

Ohira Hideki, Nomura Michio, Matsunaga Masahiro, Isowa Tokiko, Kimura Kenta, Kanayama Noriaki, Murakami Hiroki, Osumi Takahiro

PSYCHOPHYSIOLOGY Vol. 45 page： S96 - S96 2008

Functional association of brain and somatic activities accompanying reversal learning Reviewed

Hideki Ohira, Michio Nomura, Masahiro Matsunaga, Tokiko Isowa, Kenta Kimura, Noriaki Kanayama, Hiroki Murakami, Takahiro Osumi

PSYCHOPHYSIOLOGY Vol. 45 page： S96 - S96 2008

Dissociative experience and mood-dependent memory Reviewed

Kanayama N, Sato A, Ohira H

Cognition and Emotion Vol. 22 ( 5 ) page： 881 - 896 2008

Language：English Publishing type：Research paper (scientific journal)

Amnesia is the main phenomenon in dissociative experiences. The present study investigated whether amnesia in participants with frequent dissociative experiences depended on state-dependent memory. Undergraduates scoring high (n = 32) or low (n = 32) on the Dissociative Experiences Scale Version-II (DES-II) participated in this experiment. Mood induction and a remember/know task were used in a typical mood-independent memory design. In the inconsistent mood state condition, participants in the high DES group showed decreased memory performance compared to the low DES group. These results were attributed to the recollection components of recognition and not to the familiarity component. Therefore we concluded that the normal population with highly frequent dissociative experiences showed strong state-dependent memory and had a memory bias in the recollection component of memory.

DOI： 10.1080/02699930701541674

Web of Science

Scopus

Other Link： http://orcid.org/0000-0002-5576-4791

Regulation of lymphocytes redistribution via autonomic nervous activity during stochastic learning.

Kimura K, Ohira H, Isowa T, Matsunaga M, Murashima S

Brain, behavior, and immunity Vol. 21 ( 7 ) page： 921 - 34 2007.10

Regulation of lymphocytes redistribution via autonomic nervous activity during stochastic learning Reviewed

Kenta Kimura, Hideki Ohira, Tokiko Isowa, Masahiro Matsunaga, Seikou Murashima

BRAIN BEHAVIOR AND IMMUNITY Vol. 21 ( 7 ) page： 921 - 934 2007.10

Language：English Publishing type：Research paper (scientific journal) Publisher：ACADEMIC PRESS INC ELSEVIER SCIENCE

Several studies reported that redistribution of lymphocyte subsets, especially CD3-CD16+CD56+ natural killer (NK) cells, was elicited by acute psychological stress tasks. It is known that lymphocyte redistribution was regulated based on active or passive emotional coping strategies, which can be elicited dependent on controllability of a stressor. Controllability can be evaluated gradually by learning of a contingency between actions and outcomes. Therefore, lymphocyte redistribution can be determined by learning of the contingency. To examine this issue, we used a stochastic learning task as an acute stress task and divided twenty healthy participants into reinforcement or yoked groups. Between the two groups, only whether they could learn the contingency was manipulated. As a result, patterns of changes in the NK cell numbers differed between the groups; NK cells remarkably increased at first and then gradually decreased to the baseline in the reinforcement group while the yoked group showed a moderate but sustained increase of NK cells. These patterns of changes in the NK cells were completely parallel with changes of the cardiovascular parameters but not with secretion of catecholamines. The present results suggest that cardiovascular and immune reactivity can be modulated along with progresses of adaptation for an acute stressor. (C) 2007 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.bbi.2007.03.004

Web of Science

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Papers - OHIRA, Hideki