研究者詳細 - 大平　英樹

論文 - 大平　英樹

分割表示 731 件中 361 - 380 件目／全件表示 >>

P300を指標としたGKTに対するカウンタメジャーの効果

濱本有希, 平伸二, 大平英樹

人間環境学研究 8 巻 ( 1 ) 頁： 33 - 38 2010年

Inhibitory effect of central oxytocin on acceleration of colonic motility induced by water-avoidance stress in rats

Matsunaga Masahiro, Yoneda Masashi, Kasugai Kunio, Ohira Hideki, Tsuboi Hirohito, Kaneko Hiroshi

NEUROSCIENCE RESEARCH 68 巻 ( Suppl 1 ) 頁： E395 - E395 2010年

EFFECTS OF RECALL FACILITATION ON MEMORY INTERFERNCE BETWEEN TWO MOCK CRIMES

Hamamoto, Y; Hira, S; Ohira, H

PSYCHOPHYSIOLOGY 47 巻頁： S63 - S63 2010年

EEG Evidence of Face-specific Visual Self-Representation. 査読有り

Miyakoshi, M, Kanayama, N, Iidaka, T, Ohira, H

NeuroImage 50 巻頁： 1666-1675 2010年

CARDIAC RESPONSES PREDICTING DECISION-MAKING IN SOCIALLY THREATENING SITUATIONS

Osumi, T; Ohira, H

PSYCHOPHYSIOLOGY 47 巻頁： S69 - S69 2010年

Influence of attention to somatic information on emotional and autonomic responses

Murakami H., Ohira H., Matsunaga M., Kimura K.

Perceptual and Motor Skills 108 巻 ( 2 ) 頁： 531 - 539 2009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：Perceptual and Motor Skills

The present study aimed to investigate the dissociable effects of two forms of self-focus on emotional and autonomic responses. One form is suppression, which includes the suppression of heart rate and self-evaluation of performance. The other is observation, which includes attention to one's own heart rate with no suppression and no evaluation. 26 undergraduate and graduate students from the Nagoya University campus (13 men, 13 women), ages 18 to 24 years (M = 20.7, SD=1.6) were recruited. Participants were provided with their own heart rate as feedback for 5 min., during which participants conducted a self-focus manipulation. Several days after the experimental session for one condition, the same participants conducted another experimental session for the other condition. Instruction to suppress enhanced physiological arousal and subsequent negative emotions; however, instruction to observe did not increase physiological arousal or negative emotions. © Perceptual and Motor Skills 2009.

DOI： 10.2466/PMS.108.2.531-539

Scopus

P2-13 サイコパシー特性による意思決定方略の変容 : 報酬獲得のための合理的・非合理的リスクに関する検討

大隅尚広, 大平英樹

日本パーソナリティ心理学会大会発表論文集 18 巻 ( 18 ) 頁： 152 - 153 2009年11月

Reduced recollective memory about negative items in high trait anxiety individuals: an ERP study. 査読有り

Inaba M, Ohira H.

International Journal of Psychophysiology 74 巻 ( 2 ) 頁： 106-113 2009年11月

Reduced recollective memory about negative items in high trait anxiety individuals: an ERP study. 査読有り

Inaba M, Ohira H

International Journal of Psychophysiology 74 巻 ( 2 ) 頁： 106-113 2009年11月

Polymorphism of the serotonin transporter gene modulates brain and physiological responses to acute stress in Japanese men

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

Stress 12 巻 ( 6 ) 頁： 533 - 543 2009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：Stress

A short (S) variant, compared to a long (L) variant, of the promoter region of the serotonin transporter gene-linked polymorphic region (5HTTLPR) has been related to emotional hyper-reactivity. We tested whether the 5HTTLPR could modulate acute stress responses in the brain and, the cardiovascular and neuroendocrine systems. Ten Japanese male participants carrying double copies of the S alleles and 10 Japanese males carrying S and L alleles conducted a mental arithmetic task, and their regional cerebral blood flow by 15O positron emission tomography and cardiovascular and neuroendocrine parameters were measured. During the acute stress task, the participants with the SS alleles showed stronger reactivity in blood pressure and secretion of epinephrine, compared to the participants with the SL and LL alleles. Furthermore, the SS carriers showed greater activation in stress-related brain regions such as the hypothalamus, cerebellum, midbrain, and pulvinar compared to the SL and LL carriers during the acute stress task. The present findings indicated that the S allele of the 5HTTLPR is associated with greater brain and physiological reactivity to acute stress in Japanese men. © 2009 Informa Healthcare USA, Inc.

DOI： 10.3109/10253890902787826

Scopus

Polymorphism of the serotonin transporter gene modulates brain and physiological responses to acute stress in Japanese men.

Ohira H, Matsunaga M, Isowa T, Nomura M, Ichikawa N, Kimura K, Kanayama N, Murakami H, Osumi T, Konagaya T, Nogimori T, Fukuyama S, Shinoda J, Yamada J

Stress (Amsterdam, Netherlands) 12 巻 ( 6 ) 頁： 533 - 43 2009年11月

Reduced recollective memory about negative items in high trait anxiety individuals: An ERP study

Inaba Midori, Ohira Hideki

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY 74 巻 ( 2 ) 頁： 106 - 113 2009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：International Journal of Psychophysiology

The present study investigated whether trait anxiety reduce the contribution of episodic retrieval to recognizing negative words. Behavioral and electrophysiological responses in anxious individuals were measured during an exclusion recognition task to compare with a previous report about control participants (Inaba et al., 2007). At test, participants were asked to respond "old" when an item had been included in a target study list. According to the process-dissociation framework, the difference in the waveforms for the "old" responses between target and non-target items is considered to be a measurement of recollection. It was shown to be the difference in the slow waves. As with the behavioral estimate of recollection, the difference in the slow waves at left-parietal area was smaller for negative items compared to other items in the anxiety group. This result was in contrast to a greater difference in the slow positivity for negative words in the control group. These findings suggest that excess old judgments for negative items in the anxious group might be associated with less recollective memory. © 2009 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.ijpsycho.2009.08.001

Web of Science

Scopus

PubMed

Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game 査読有り

Osumi T, Ohira H.

International Journal of Psychophysiology 74 巻 ( 1 ) 頁： 74-79 2009年10月

Profiling of serum proteins influenced by warm partner contact in healthy couples 査読有り

Matsunaga M, Sato S, Isowa T, Tsuboi H, Konagaya T, Kaneko H, Ohira H.

Neuro Endocrinol Lett 30 巻 ( 2 ) 頁： 227-236 2009年10月

Cardiac responses predict decisions: An investigation of the relation between orienting response and decisions in the ultimatum game

Osumi, T; Ohira, H

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY 74 巻 ( 1 ) 頁： 74 - 79 2009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：International Journal of Psychophysiology

Emotion-based behaviors in humans cannot be fully explained by economic rationality. Particularly, in the ultimatum game, which incorporates conflict between self-interest and fairness, negative emotions evoked by an unfair offer seem to promote an economically irrational decision. In accordance with this suggestion, the previous studies have reported that physiological arousal is associated with rejecting unfair offers. In the present study, we investigated electrocardiogram and electrodermal activities in individuals which received fair, advantageously unfair, and disadvantageously unfair offers to specify the relations of the orienting and the defensive responses with these offers and with the decisions to accept and reject them. The results indicated that when an offer that would be rejected was presented, heart rate initially decelerated more than when an offer that would be accepted was presented. Additionally, there was a linear relationship between the deceleration and unfairness of offers. On the other hand, such different patterns were not seen in late cardiac acceleration or electrodermal response. The results suggest that because of perception of disadvantage and unpleasantness in a social context, the orienting response is evoked when an offer will be rejected. In addition, these results are discussed regarding the effect of the autonomic activity in decision-making. © 2009 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.ijpsycho.2009.07.007

Web of Science

Scopus

PubMed

Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game 査読有り

Osumi T, Ohira H

International Journal of Psychophysiology 74 巻 ( 1 ) 頁： 74-79 2009年10月

Cardiac responses predict decisions: an investigation of the relation between orienting response and decisions in the ultimatum game 査読有り

Osumi T, Ohira H

International Journal of Psychophysiology 74 巻 ( 1 ) 頁： 74-79 2009年10月

Association of polymorphism in the human μ-opioid receptor <i>OPRM1</i> gene with proinflammatory cytokine levels and health perception

Matsunaga, M; Isowa, T; Murakami, H; Kasugai, K; Yoneda, M; Kaneko, H; Ohira, H

BRAIN BEHAVIOR AND IMMUNITY 23 巻 ( 7 ) 頁： 931 - 935 2009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：Brain, Behavior, and Immunity

Recent studies in psychoneuroimmunology have indicated that proinflammatory cytokines cause several diseases and behaviors that overlap symptomatically with depression. It is known that the endogenous opioid peptide β-endorphin regulates proinflammatory cytokine secretion from peripheral immune cells via μ-opioid receptor-dependent mechanisms. Therefore, it is possible that the functional polymorphism of the μ-opioid receptor gene (OPRM1, SNP: A118G) influences peripheral circulating proinflammatory cytokine levels and the health-related quality of life (QOL) even in healthy populations. In this study, we compared the serum concentrations of several proinflammatory cytokines (interleukin-2 (IL-2), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ)) and the health-related QOL between OPRM1 genotypes. Interestingly, serum concentrations of IL-6, TNF-α, and IFN-γ were significantly lower and the general health score was significantly higher in carriers of the G allele, who show a strong binding of β-endorphin to the μ-opioid receptor as compared to individuals without the G allele. Correlation analysis indicated that the general health score was negatively correlated with the IL-6 serum concentration. These results suggest that the sensitive endogenous opioid system in carriers of the G allele may suppress proinflammatory cytokine secretion from peripheral immune cells; consequently, it may influence the health perception. © 2009 Elsevier Inc. All rights reserved.

DOI： 10.1016/j.bbi.2009.03.007

Web of Science

Scopus

PubMed

Profiling of serum proteins influenced by warm partner contact in healthy couples

Matsunaga M., Sato S., Isowa T., Tsuboi H., Konagaya T., Kaneko H., Ohira H.

Neuroendocrinology Letters 30 巻 ( 2 ) 頁： 227 - 236 2009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：Neuroendocrinology Letters

OBJECTIVES: Warm physical contact may positively influence our health and well-being; however, it has not been investigated yet whether serum proteins are influenced by warm physical contact in healthy couples. In this study, we focused on psychological and physiological effects of warm partner contact in healthy couples. METHODS: When participants freely kissed and hugged their romantic partners, they were asked to subjectively evaluate their present emotions. Furthermore, changes of serum proteins were determined by using ProteinChip surface enhanced laser desorption/ionization-time-of-flight-mass spectrometry (SELDI-TOF-MS). We characterized these proteins by using biochemical techniques combined with gel filtration high performance liquid chromatography (HPLC), reverse-phase HPLC, and sequencing analyses. RESULTS: Romantic couples became happier and less irritated after kissing and hugging. Accompanying these psychological changes, SELDI-TOF-MS indicated that the intensities of 66-k Da, 11.7-k Da, and 5.9-k Da serum proteins were increased. These proteins were identified as serum albumin and β2- microglobulin, and probably fibrinogen fragment. The feeling of happiness positively correlated and the feeling of irritation negatively correlated with intensities of serum albumin and β2-microglobulin. CONCLUSION: These results suggest that psychological stress may be reduced and we may feel happiness when we kiss and hug a romantic partner. Furthermore, these results also suggest that warm partner contact influences peripheral circulating proteins, more importantly, may promote health and well-being. Copyright © 2009 Neuroendocrinology Letters.

Scopus

Transient responses of inflammatory cytokines in acute stress

Yamakawa Kaori, Matsunaga Masahiro, Isowa Tokiko, Kimura Kenta, Kasugai Kunio, Yoneda Masashi, Kaneko Hiroshi, Ohira Hideki

BIOLOGICAL PSYCHOLOGY 82 巻 ( 1 ) 頁： 25 - 32 2009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：Biological Psychology

It has been demonstrated that concentrations of pro-inflammatory cytokines such as interleukin-1β (IL-1β) and interleukin-6 (IL-6) are elevated by acute stress. Although several studies confirmed robust changes in IL-6, how acute stress affects other cytokines was less clear. Therefore, the present study simultaneously examined the effects of acute stress on several pro-inflammatory cytokines. Sixteen male participants were given the Trier Social Stress Test (TSST). Blood samples were collected at baseline, immediately after, and 30, 60, and 90 min after the TSST. IL-1β significantly increased immediately after the TSST and returned to the baseline level after 30 min. Additionally, this elevation of IL-1β was correlated with the perceived intensity of stress. These results showed that the concentration of IL-1β is rapidly regulated, and that elevation of the IL-1β level could possibly be attributed to transient mobilization of monocytes caused by sympathetic nervous activation. Moreover, a transient increase of IL-1β might be conveyed to the brain and play a role in forming negative emotional states. © 2009 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.biopsycho.2009.05.001

<大平 英樹>

論文 - 大平 英樹

<大平　英樹>

論文 - 大平　英樹