ISSN : 1226-9654
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.
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