論文 - 寺澤　悠理

Sleep Debt Elicits Negative Emotional Reaction through Diminished Amygdala-Anterior Cingulate Functional Connectivity

Motomura, Yuki, Kitamura, Shingo, Oba, Kentaro, Terasawa, Yuri, Enomoto, Minori, Katayose, Yasuko, Hida, Akiko, Moriguchi, Yoshiya, Higuchi, Shigekazu, Mishima, Kazuo

PLOS ONE 8 （ 2 ）  2013年02月

研究論文（学術雑誌）, 査読有り,  ISSN  1932-6203

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Deficits in prospective memory following damage to the prefrontal cortex

Umeda, Satoshi, Kurosaki, Yoshiko, Terasawa, Yuri, Kato, Motoichiro, Miyahara, Yasuyuki

NEUROPSYCHOLOGIA 49 （ 8 ） 2178 - 2184 2011年07月

研究論文（学術雑誌）, 査読有り,  ISSN  0028-3932

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Association between interoception and empathy

Fukushima Hirokata, Terasawa Yuri, Umeda Satoshi

International Journal of Psychophysiology 79 （ 2 ） 259 - 265 2011年02月

ISSN  0167-8760

　概要を見る

<p>Physiological bodily states play an important role in affective experiences. This study investigated whether the neural processing of internal body state (interoception) is associated with empathy, the understanding of the affective states of others. We used the 'heartbeat-evoked potential' (HEP), a surface electroencephalography (EEG) pattern, as a neural index of interoceptive processing. The HEP is contingent on the most prominent peak (R-wave) of the electrocardiogram (ECG) and is thought to reflect cortical processing of cardiac afferent input. Twenty-one healthy adults performed empathy and control tasks while EEG and ECG were recorded, where they made judgments based on either the affective or physical aspects of images of human eyes. HEP, ECG and heart rate in each task block were calculated and compared. Results showed that cardiac activity was not significantly different between tasks. In contrast, HEP showed a significant task difference, exhibited as an increased negativity during the empathy task over frontocentral sites at a latency of approximately 250-430. ms. Furthermore, a self-reported measure of empathy was associated with mean HEP amplitude during the period of task-related differentiation. These results suggest that afferent feedback from visceral activity may contribute to inferences about the affective state of others.</p>

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Association between interoception and empathy: Evidence from heartbeat-evoked brain potential

Fukushima, Hirokata, Terasawa, Yuri, Umeda, Satoshi

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY 79 （ 2 ） 259 - 265 2011年02月

研究論文（学術雑誌）,  ISSN  0167-8760

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The reliability and validity of the Japanese version of the Levels of Emotional Awareness Scale (LEAS-J)

Igarashi Tetsuya, Komaki Gen, Lane Richard D., Moriguchi Yoshiya, Nishimura Hiroki, Arakawa Hiromi, Gondo Motoharu, Terasawa Yuri, Sullivan Corbet V., Maeda Motonari

BioPsychoSocial Medicine 5 2011年01月

　概要を見る

<p>Background: The Levels of Emotional Awareness Scale (LEAS) was developed to assess five levels of emotional awareness: bodily sensations, action tendencies, single emotions, blends of emotion, and combinations of blends. It is a paper and pencil performance questionnaire that presents 20 emotion-evoking scenes. We developed a Japanese version of the LEAS (LEAS-J), and its reliability and validity were examined.Methods: The LEAS-J level was independently assessed by two researchers who scored each response according to the LEAS scoring manual. High inter-rater reliability and internal consistency were obtained for the LEAS-J. Measures were socioeconomic status, LEAS-J, Toronto Alexithymia Scale-20 (TAS-20), Interpersonal Reactivity Index (IRI), and NEO Five-Factor Inventory (NEO-FFI). TAS-20, IRI and NEO-FFI were the measures used to explore the construct validity of LEAS-J, as it was predicted that higher scores on the LEAS-J would be related to fewer alexithymic features, greater empathetic ability, and a greater sense of cooperation with others. Questionnaires were completed by 344 university students.Results: The criterion-referenced validity was determined: a significant negative relationship was found with the externally-oriented thinking scores of TAS-20, and positive relationships were found with fantasy, perspective taking, and empathic concern on IRI and with extraversion, openness to experience, and agreeableness on NEO-FFI.Conclusions: Consistent with our expectations, the findings provide evidence that the LEAS-J has good reliability and validity. In addition, women had significantly higher scores than men on LEAS-J, showing that the gender difference identified in the original LEAS was cross-culturally consistent.</p>

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Autonomic reactivity of hypothesis-testing in decision-making

Terasawa Yuri, Umeda Satoshi

Psychologia 53 （ 3 ） 195 - 206 2010年09月

ISSN  0033-2852

　概要を見る

<p>Given the results of studies using the Iowa Gambling Task (IGT), emotion-based sensitivity to an anticipated outcome of one's own behavior has been suggested to be a significant factor in making advantageous decisions. Hypotheses-testing in performing IGT is essential for learning correct rules and elicits autonomic reactivity. In this study, participants were asked to concentrate on hypothesis-testing to learn undisclosed rules in the task which framework was similar to the IGT, rather than maximizing monetary reward. The amplitudes of skin conductance responses (SCRs) prior to card selection and following feedback were attenuated as participants came to accurately comprehend the task rules. The attenuation of SCRs resulted from reduced motivation to continue the hypotheses-testing. Our findings provide some evidence that observed autonomic responses partially reflect emotional reactions associated with the hypothesis-testing.</p>

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AUTONOMIC REACTIVITY OF HYPOTHESIS-TESTING IN DECISION-MAKING

Terasawa, Yuri, Umeda, Satoshi

PSYCHOLOGIA 53 （ 3 ） 195 - 206 2010年09月

研究論文（学術雑誌）, 査読有り,  ISSN  0033-2852

右島皮質損傷によってネガティブ表情の識別に混乱を示した一例

寺澤悠理・梅田 聡・斎藤文恵・加藤元一郎

高次脳機能研究 30 （ 2 ） 317 - 323 2010年01月

研究論文（学術雑誌）, 査読有り