스트레스 상황에서 외향적-내향적 성격 차원에 따른사건관련전위의 개인차 연구Event-related potential evidence of individual differences in the extravert-introvert personality dimension under stress
- Other Titles
- Event-related potential evidence of individual differences in the extravert-introvert personality dimension under stress
- Authors
- 황인재; 한경훈; 지상은; 김현택
- Issue Date
- 2013
- Publisher
- 한국인지및생물심리학회
- Keywords
- 외향적-내향적 성격 차원; 사회적 스트레스; 각성 수준; N2-P2 최고점간 진폭; CNV; extravert-introvert personality dimension; social stress; arousal level; N2-P2 peak-to-peak; CNV
- Citation
- 한국심리학회지: 인지 및 생물, v.25, no.4, pp.565 - 580
- Indexed
- KCI
- Journal Title
- 한국심리학회지: 인지 및 생물
- Volume
- 25
- Number
- 4
- Start Page
- 565
- End Page
- 580
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/105705
- DOI
- 10.22172/cogbio.2013.25.4.009
- ISSN
- 1226-9654
- Abstract
- The aim of the present study is to elucidate the differences in neural correlates in a vigilance task performance according to stress level between extraverts and introverts. Forty-three subjects were assigned to two groups (21 extraverts; 9 males, 22 introverts; 9 males). Subjects in the two groups performed a vigilance task either under a social stress or not during the event-related potential (ERP) recording. Results showed that the response accuracies of both groups in the stress condition were higher than those in the no-stress condition. ERPs revealed that (1) N2-P2 peak-to-peak amplitudes and contingent negative variation (CNV) mean amplitudes in the introversion group were significantly greater than those in the extraversion group, (2) the N2-P2 peak-to-peak amplitudes increased significantly at Fz site in the stress condition in the extraversion group. These results suggest that introverts may sustain higher level of arousal than extraverts, regardless of stress condition, and extraverts may show augmented arousal or attention levels, specifically in performance under stress.
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