著者

中谷 裕教 山口 陽子 Nakatani hironori Yamaguchi yoko

雑誌

【C】平成21年電気学会電子・情報・システム部門大会講演論文集

巻号頁・発行日

pp.211-214, 2009-09-03

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我々は外界の情報の多くを視覚を通して得ている。しかし視野内の全ての物を処理すると時間がかかり刻一刻変化する環境に対応できない。正確さを欠いたとしても、直感的にかつ瞬時に外界を認識し判断を下すには、何らかの価値観に基づいて処理すべき優先順位を事前に設定し、優先度の高いものを処理すべきである。本研究では、処理の優先順位の定量的評価から各被験者の価値観を推定し、価値観の違いによる脳活動の違いを比較した。

著者

Kawasaki Masahiro Yamada Yohei Ushiku Yosuke Miyauchi Eri Yamaguchi Yoko

出版者

Nature Publishing Group

雑誌

Scientific reports (ISSN:20452322)

巻号頁・発行日

vol.3, pp.1692, 2013-04

被引用文献数

146 9

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Behavioral rhythms synchronize between humans for communication; however, the relationship of brain rhythm synchronization during speech rhythm synchronization between individuals remains unclear. Here, we conducted alternating speech tasks in which two subjects alternately pronounced letters of the alphabet during hyperscanning electroencephalography. Twenty pairs of subjects performed the task before and after each subject individually performed the task with a machine that pronounced letters at almost constant intervals. Speech rhythms were more likely to become synchronized in human–human tasks than human–machine tasks. Moreover, theta/alpha (6–12 Hz) amplitudes synchronized in the same temporal and lateral-parietal regions in each pair. Behavioral and inter-brain synchronizations were enhanced after human–machine tasks. These results indicate that inter-brain synchronizations are tightly linked to speech synchronizations between subjects. Furthermore, theta/alpha inter-brain synchronizations were also found in subjects while they observed human–machine tasks, which suggests that the inter-brain synchronization might reflect empathy for others' speech rhythms.

著者

山口 庸子 YAMAGUCHI YOKO

出版者

名古屋大学大学院国際言語文化研究科

雑誌

言語文化論集 (ISSN:03886824)

巻号頁・発行日

vol.22, no.1, pp.175-189, 2000-10-31 (Released:2007-05-31)