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ID 16252
file
title alternative
Event-related brain potentials in a mental rotation task with different probabilities of normal and mirror-image letter stimuli
creator
Nagano, Makiko
subject
心的回転
事象関連脳電位
処理関連陰性電位
P3b
Mental rotation
Event-related brain potentials
Processing-related negativity
P3b
NDC
Psychology
abstract
The aim of this experiment was to evaluate a scalp distribution of processing-related negativity that was thought as an electrophysiological correlate of the mental rotation process. Event-related brain potentials (ERPs) were recorded from 16 subjects who performed a mental rotation task (to decide whether the letter presented in one of nine different orientations was in normal or mirror-reversed format). The probability of normal stimuli was manipulated between conditions to reduce the effects of P3b that was simultaneously superimposed on the rotation-related negativity. The results showed that the increase of mental rotation demand caused negative shifts of the ERPs between 400 and 800 ms latency range. Although the probability of the normal stimuli did not change the amplitudes of P3b, some differences of topography were observed between the rotation-related negativity and the P3b.
journal title
Bulletin of the Graduate School of Education, Hiroshima University. Part 3, Education and human science
issue
Issue 51
start page
187
end page
194
date of issued
2003-03-28
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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