ERPを指標とした外向性研究

概要

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The purpose of this article is to review a series of extraversion studies published in the last decade, using event-related potentials (ERPs) as indices, and to comment on their implications. In Chapter 1, the relationship between the trait of extraversion and ERPs (especially P300) which were recorded during the oddball task is described. It is commonly suggested that introverts tend to produce larger P300 amplitudes than extraverts, for responses of extraverts reflect on their rapid habituation or gradual decay of attentional resources devoted to the task as the experimental progress. However, in the early part of recording session, or under conditions where habituation is minimized, extraverts tend to produce larger P300. Thus it is more required to understand difference between extraverts and introverts in habituation. Chapter 2 summarizes studies relating the trait of extraversion to ERPs elicited during some experimental tasks except oddball task. Chapter 3 deals with studies to which ERP is applied to examine Gray's theory. The relationship between extraversion and ERP still remains some points that should be considered. Therefore, it is necessary to study more systematically, and to re-exmaine Eysenck's theory.
広島修道大学の論文
1998-09-30