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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30


조현형 인격 성향을 가진 대학생의 정서적 신체언어 인식 결함에 관한 사건관련전위연구

Deficits of emotional body language recognition in college students with schizotypal traits: an event-related potential study

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2017, v.29 no.3, pp.261-286
이다흰 (성신여자대학교)
김명선 (성신여자대학교)
  • 다운로드 수
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본 연구는 조현병 인격 성향을 가지는 대학생의 정서인식의 결함을 신체정서 변별과제와 사건관련전위를 사용하여 알아보고자 하였다. Schizotypal personality questionnaire의 점수에 근거하여 조현형 인격 성향군(n=20)과 정상통제군(n=20)을 선정하였다. 신체정서 변별과제는 긍정적, 부정적 및 중립적인 신체자극의 정서가를 판단하는 과제로서, 연구 참여자에게는 각 정서가에 해당하는 버튼을 누르는 것이 요구되었다. 행동자료 분석 결과, 반응 정확률의 경우 두 집단 간 유의한 차이가 관찰되지 않았으며, 반응시간의 경우 긍정조건과 부정조건에서는 집단 간 차이가 관찰되지 않았지만, 중립조건에서 정상통제군에 비해 조현형 인격 성향군이 유의하게 느린 반응시간을 보였다. 또한 사건관련전위 요소를 분석한 결과, 정상통제군은 N170과 P250 모두에서 중립자극과 정서자극(긍정 및 부정자극) 간의 유의한 진폭 차이를 보인 반면, 조현형 인격 성향군에서는 정서자극과 중립자극 간의 유의한 진폭 차이가 관찰되지 않았다. 즉 정상통제군은 신체를 구조적으로 부호화하는 단계(N170)에서부터 정서자극과 중립자극을 적절하게 변별하였으며, 보다 세부적인 요소들을 처리하는 단계(P250)에서도 세부적인 처리가 요구되는 중립자극에 인지적 노력을 더 기울인 반면, 조현형 인격 성향군은 이러한 일련의 처리과정에서 정상통제군에 비해 저하된 신경 생리적 기능을 보였다. 따라서 본 연구의 결과는 정상통제군에 비해 조현형 인격 성향군이 신체정서의 인식에 관여하는 신경 생리적 기능의 결함을 가지고 있을 가능성을 시사한다.

schizotypal-trait, Emotional body language recognition, ERP, N170, P250, 조현형 인격 성향군, 정서적 신체언어, 사건관련전위, N170, P250


This study investigated the deficits of emotional body language recognition in college students with schizotypal traits using emotional body language recognition task and event-related potentials (ERPs). Based on the scores of Schizotypal Personality Questionnaire(SPQ), the normal control group (n=20) and the schizotypal-trait group (n=20) were selected. To examine the emotional body language recognition ability, participants were instructed to judge the emotional value conveyed by the presented stimulus, which could be either negative, positive or neutral. Behavioral results of the emotional body language recognition task showed that the control and schizotypal-trait group did not differ significantly in terms of error rate. However, schizotypal-trait group showed significantly delayed response time in neutral condition compared to the control group. In terms of event-related potentials, the control group showed significantly different N170 and P250 amplitudes between emotional stimuli (positive and negative) and neutral ones, whereas schizotypal-trait group did not show these differences between emotional and neutral stimuli. These results indicate that the controls could rapidly discriminate the emotion conveyed by body postures in body configurational encoding stage (N170), and efficiently made the cognitive effort using the stored emotional representations in specific perception stage (P250), whereas individuals with schizotypal traits had difficulties in these emotional processing. These findings suggest that individuals with schizotypal traits have deficits of emotional body language recognition, which could be a trait marker of schizophrenia.

schizotypal-trait, Emotional body language recognition, ERP, N170, P250, 조현형 인격 성향군, 정서적 신체언어, 사건관련전위, N170, P250



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