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ID 18531
file
title alternative
An ERP study on the quantitative relation between conflict and response inhibition
creator
Takezawa, Tomohiro
Nakao, Mizuki
Shiraishi, Maiko
subject
競合検出処理
反応抑制
偏側性準備電位
P300
フランカー課題
conflict detection process
response inhibition
lateralized readiness potential
flanker task
NDC
Psychology
abstract
This study examined the hypothesis (Jones, Cho, Nystrom, Cohen, & Braver, 2002) that the amount of conflict raised by incongruent stimuli in a flanker task affects subsequent response inhibition, using eventrelated potentials. Eleven participants responded selectively with their hands to the stimuli that consisted of a target arrow neighbored by congruent or incongruent distractor arrows. The amount of conflict was manipulated by varying the number of incongruent distractors (i.e. the stimuli included two incongruent distractor arrows for small-conflict condition or four incongruent distractor arrows for large-conflict). The results showed the response times were longer for the large-conflict incongruent stimuli, followed by the small conflict, and then the congruent, suggesting more conflict in large-conflict stimuli. The response times (RTs) in congruent condition became longer when the conflict has been occurred in the preceding trial. But the RTs were almost the same regardless of whether the preceding trial was small-conflict or large-conflict trial. The latency of lateralized readiness potential which can be a measure of response preparation, for congruent condition also showed the delay by presence of conflict in preceding trial, but was not sensitive to the amount of conflict. P300 latency for congruent condition became longer after the conflict trial. These findings suggest that (1) there was no ERP evidence suggesting the quantitative relation between conflict and response inhibition, and (2) response inhibition triggered by conflict detection could contribute to the prolongation of the evaluation time for the stimuli.
journal title
Bulletin of the Graduate School of Education, Hiroshima University. Part. Ⅲ, Education and Human Science
issue
Issue 53
start page
285
end page
290
date of issued
2005-03-28
publisher
広島大学大学院教育学研究科
国立情報学研究所
issn
1346-5562
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Education
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