지향성 탐지 기제에서의 개인차: 전공에 따른 뇌 활성화 영역
Individual Differences in Intentionality Detection: Brain Activation Areas According to College Major
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본 연구에서는 마음이론의 기본적 기제로 알려진 지향성 탐지 기제에서의 개인차를 알아보기 위하여 대비되는 두 가지 전공 영역의 참가자들이 과제를 수행하는 동안 기능적 자기공명 영상을 촬영하여 뇌 활성화 영역을 비교해보았다. 공학 전공자의 경우에는 우반구의 하두정소엽과 상두정소엽이 활성화되었던(이승복 등, 2006) 반면, 동일한 지향성 탐지 과제를 수행하는 동안 심리학 전공자는 좌반구의 하전두회, 방추상회, 상측두회와 우반구의 방추상회와 변연상회가 활성화되었다. 이런 결과는 참가자의 전공 배경에 따라 지향성 탐지를 하는 동안 활성화되는 뇌 영역들에 차이가 있음을 분명히 보여준다. 지향성 탐지 과제 수행과 참가자 특성간의 관계를 논의하였다.
Abstract
We compared brain activation areas during participants drawn from contrasting two college majors performed intentionality detection (known as the basic mechanism of theory of mind) task using fMRI. The main purpose of this study was to identify whether individual differences are present in intentionality detection or not. In psychology major, the left inferior frontal gyrus, the fusiform gyrus, the superior temporal gyrus and the right fusiform gyrus, the supramarginal gyrus were activated. In engineering major, the inferior parietal lobule and the superior parietal lobule were found. This result suggests that according to participants' major, different brain areas were activated. The relations between performance of the intentionality detection task and the individual variants of participants were discussed.
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