Research article summary (published 30 Mar 2006):

Event-related brain potential in responses to social messages via human faces.

Full Abstract

In two experiments participants were presented a sequence of facial photographs to examine effects of pleasantness of facial expressions, namely, pleasant and unpleasant, and task relevance on P300 component of event-related brain potentials in the 3-stimulus version of the oddball task. Exp. 1 showed that, although the amplitudes of P300 were the largest in response to task-relevant target stimuli and moderate in response to task-irrelevant nontargets, the Pleasantness of stimuli did not affect the amplitudes of P300 when the stimuli were task-relevant or irrelevant. Data in Exp. 2 suggested that the emotional significance rather than physical characteristics of stimuli might be responsible for generation of P300 by task-irrelevant nontargets.

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Author information

Author/s: Ogawa, Tokihiro (T); Morioka, Yousuke (Y); Suzuki, Naoto (N);

Affiliation: National Research Institute of Police Science in Japan, Chiba. t-ogawa(-atsign-)nrips.go.jp

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Perceptual and motor skills (Percept Mot Skills), published in United States. (Language: eng)

Reference: 2006-Apr; vol 102 (issue 2) : pp 421-9

Dates: Created 2006/07/07; Completed 2006/11/09; Revised 2006/11/15;

PMID: 16826663, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adolescent Adult Arousal - physiology Cerebral Cortex - physiology Electroencephalography Emotions - physiology Event-Related Potentials, P300 - physiology Facial Expression

Facial Expression Female Humans Interpersonal Relations Male Nonverbal Communication Pattern Recognition, Visual - physiology Reaction Time - physiology

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