Meeting Two Minds: False Belief Processing for Two instead of One False Belief

[Speaker] Ozdem, Ceylan:1
[Co-author] Brass, Marcel:2, Van Der Cruyssen, Laurens:1, Schippers, Arjen:1, Van Overwalle, Frank:1
1:Vrije Universiteit Brussel (Belgium), 2:Gent Universiteit (Belgium)

Neuroimaging research has demonstrated that the temporo-parietal junction (TPJ) and medial prefrontal cortex (mPFC) are activated during high-level thinking about the beliefs of other people, such as false beliefs. Recent approaches (Cabezza et al., 2012) see activation of the TPJ during false belief reasoning as caused by reorientation of attention from reality to internal memory. However, it is still unclear how reorientation is accomplished: by reducing attention to the self or by increasing attention to the other's mind? To resolve this question, we asked participants to judge the false and true beliefs of one or two persons, instead of only one person. The results revealed stronger activation in the ventral mPFC during the belief formation and question phase, and in the left TPJ during the question phase only. This suggests that increasing one's attention to distinct others' mind requires increased subprocess during the understanding of false beliefs.
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