Energetical bases of extraversion: Effort, arousal, EEG, and performance

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• 作者：André ; Beauducel ; Burkhard Brocke and Anja Leue
• 关键词：Extraversion ; P300 ; Effort ; Arousal ; Vigilance performance
• 刊名：International Journal of Psychophysiology
• 出版年：2006
• 出版时间：November 2006
• 年：2006
• 卷：62
• 期：2
• 页码：212-223
• 全文大小：746 K

文摘

This study investigates an extension of H.J. Eysenck's [Eysenck, H.J., 1967. The Biological Basis of Personality. Charles C. Thomas, Springfield, IL] arousal theory of extraversion, incorporating an effort system as a control system for different aspects of arousal. Extraverts were expected to have lower levels of reticocortical arousal than introverts, to invest more effort, and to have lower task performance in a monotonous vigilance task. In a 40-min vigilance task, participants had to react to the shorter of two 1 kHz tones presented binaurally at an event rate of 200 per 10 min. Spontaneous EEG, event-related potential, and performance data of 40 extremely introverted and 41 extremely extraverted students were available for statistical analysis. A tendency for lower arousal levels of extraverts (alpha 2 band), the expected higher effort investment (P300) and a lower performance (hits) of extraverts were found.