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

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2006, v.18 no.2, pp.127-138





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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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The Korean Journal of Cognitive and Biological Psychology