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ID 21465
file
creator
Sugimoto, Sayaka
Hori, Tadao
subject
event-related potentials
affect
mood
auditory information processing
N1
P2
mismatch negativity
NDC
Psychology
abstract
To examine whether brain electrical responses to environmental stimuli were influenced by emotional contexts, event-related potentials (ERPs) elicited by nonstartle probe tones were recorded from 13 student volunteers while they were viewing emotionally positive, neutral, and negative slides of the International Affective Picture System. The auditory stimuli consisted of high-deviant (2000 Hz, p=.08), low-deviant (1050 Hz, p=.08), and standard (1000 Hz, p=.84) tones with a mean onset-to-onset interval of 600 ins. Participants were told to ignore the tones. High-deviant tones elicited a larger N1 (peaking around 100 ms) when participants were viewing negative slides than when viewing positive slides. The amplitude of the P2 elicited by standard tones (peaking around 170 ms) was smaller when participants were viewing positive slides than when viewing negative and neutral slides. The amplitude of the mismatch negativity (150-200 ms) tended to reduce during positive slide presentation, but this difference appeared to be due to reduction of the P2 elicited by standard tones. These findings suggest that visually induced emotional states have a sequential effect on auditory information processing, in that the influence of negative emotion appears at an earlier stage than that of positive emotion.
journal title
International Journal of Psychophysiology
volume
Volume 66
issue
Issue 1
start page
1
end page
9
date of issued
2007-10
publisher
Elsevier Science BV
issn
0167-8760
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright(c) 2007 Elsevier Science BV
relation is version of URL
http://dx.doi.org/10.1016/j.ijpsycho.2007.05.007
department
Graduate School of Integrated Arts and Sciences