Representation of Bodily Self in the Multimodal Parieto-Premotor Network
In this paper, we discussed multimodal bodily self-represention in the brain. We mainly emphasized that the parieto-premotor network for sensory-guided motor control also contributes to corporeal awareness. The network integrates dynamic multimodal information about the body. Some of multisensory areas in this network showed visual RFs in the pripersonal space and somatosensory RFs on the congruent body parts encoding body parts centered frame of reference. This is a basis of bodily self-recognition. Sense of ownership and sense of agency are two main components of the bodily self. Multisensory parietal areas VIP, PEa, and PFG/PF have connections with each other and also premotor cortex. We suggest that the streams to the parietal areas VIP, PFG, and PEa from the premotor cortex form node processing for sense of ownership and sense of agency. The parieto-premotor network may be involved in the social cognitive process, as suggested by mirror neuron. We propose that distinction of bodily self and others in the parieto-premotor network is a fundamental process of the social cognitive function.
KeywordsParietal Cortex Mirror Neuron Premotor Cortex Efference Copy Inferior Parietal Cortex
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