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ID 15066
本文ファイル
著者
キーワード
Event-related potential
Voluntary action
Action effect
Orienting response
P3a
P3b
NDC
心理学
抄録(英)
Humans often get information by voluntary action. However, little is known about how stimulus processing is modulated by self-production of stimuli. In the present study, event-related brain potentials were recorded from 16 student volunteers performing an auditory three-stimulus oddball task in two conditions. In the self condition, the stimuli were triggered by participants' voluntary button presses. In the auto condition, the same stimuli were presented automatically by a computer with the same interstimulus intervals as those in the self condition. Perceptually deviant nontarget stimuli elicited a larger P3 and a larger subsequent positivity in the self condition than in the auto condition, whereas low-deviant target stimuli elicited a P3 with equally high amplitude in both conditions. The findings suggest that voluntary stimulus production enhances orienting of attention (reflected in the P3a component) and subsequent memory updating (reflected in the P3b component) for deviant stimuli, but does not affect the response to task-relevant stimuli. Voluntary action may activate the perceptual representation of its most frequent outcomes and this anticipatory activation may make deviant stimuli more salient in the context.
掲載誌名
International Journal of Psychophysiology
59巻
1号
開始ページ
15
終了ページ
21
出版年月日
2006-01
出版者
Elsevier B. V.
ISSN
0167-8760
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2006 Elsevier B. V.
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/j.ijpsycho.2005.06.008
部局名
総合科学研究科