PPI analysis with the mPFC in the task-negative DMN as the seed region. (A) Top panel: in the hearing group, mPFC in the DMN showed significantly increased functional connectivity with the other subregions in the DMN, specifically during the egocentric task, compared with the allocentric task. Bottom panel: in the deaf group, mPFC in the DMN showed significantly increased functional connectivity with the left IPL in the FPN. (B) In the hearing group, the inter-network connectivity between the mPFC in the DMN and the bilateral IPL in the FPN was significantly positively correlated with the egocentric performance (EGO_RT > ALLO_RT). The stronger the inter-network connectivity between the DMN and the FPN during the egocentric task, the slower the egocentric judgements. This correlation was not significant in the deaf group.