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  • P-ISSN1226-9654
  • E-ISSN2733-466X
  • KCI

ISSN : 1226-9654

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논문 투고

Vol.18 No.2

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지향성 탐지기: 과제에 따른 뇌 활성화 영역 차이

The Intentionality Detector: fMRI Regional Brain Activation Differences between Goal-directed and Theory-of-Mind Task

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2006, v.18 no.2, pp.127-138
박민 (나사렛대학교)
윤효운 (대구사이버대학교)
이승복 (서울대학교)
김혜리 (충북대학교)
김소영 (충북대학교)
박민, 윤효운, 이승복, 김혜리, & 김소영. (2006). 지향성 탐지기: 과제에 따른 뇌 활성화 영역 차이. 한국심리학회지: 인지 및 생물, 18(2), 127-138.

초록

본 연구에서는 목표지향 과제와 마음이론 과제를 수행하는 동안 활성화되는 뇌 영역을 비교하기 위하여 기능적 자기공명영상 기법을 이용하였다. 마음이론의 기본적 기제로 알려진 지향성 탐지에 관여하는 뇌의 활성화 영역이 목표지향 과제와 마음이론 과제에 따라 다른지를 알아보는 것이 연구의 주된 목적이었다. 목표지향 과제 수행 시에는 좌반구의 중, 하후두회, 하전두회, 중심후회와 우반구의 방추상회가 활성화되었다. 마음이론 과제의 경우에는 좌반구의 상측두회, 해마방회, 중심후회와 우반구의 하후두회, 하두정소엽과 중전두회가 활성화되었다. 두 과제에 공통적인 영역으로 중심후회와 하후두회가 관찰되었다. 이런 결과는 목표지향과 마음이론 과제 수행 시의 뇌 활성화 영역에 차이가 있음을 시사한다. 각 활성화 영역의 기능적 의미를 마음이론과 관련하여 논의하였다.

keywords
마음이론, 지향성 탐지기, 상측두회, 하두정소엽, 하후두회, Theory of Mind, intentionality detector, superior temporal gyrus, inferior parietal lobule, inferior occipital gyrus <observation>, Theory of Mind, intentionality detector, superior temporal gyrus, inferior parietal lobule, inferior occipital gyrus <observation>

Abstract

We applied fMRI to examine brain activation differences between goal-directed (GD) and theory-of-mind (ToM) task. The main purpose of this study was to explore whether brain activation regions involved in intentionality detection (known as the basic mechanism of theory of mind) differ or not, according to task type. Left middle, inferior occipital gyrus, inferior frontal gyrus, postcentral gyrus and right fusiform gyrus were activated with GD task. In contrast, ToM task activated left superior temporal gyrus, parahippocampal gyrus, postcentral gyrus and right inferior occipital gyrus, inferior parietal lobule, middle frontal gyrus. Common activated areas between the task conditions were postcentral gyrus and inferior occipital gyrus. This finding suggests that different brain areas were activated according to task condition. The implications of these results for 'theory of mind' were discussed.

keywords
마음이론, 지향성 탐지기, 상측두회, 하두정소엽, 하후두회, Theory of Mind, intentionality detector, superior temporal gyrus, inferior parietal lobule, inferior occipital gyrus <observation>, Theory of Mind, intentionality detector, superior temporal gyrus, inferior parietal lobule, inferior occipital gyrus <observation>

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한국심리학회지: 인지 및 생물

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