Abstract
Bodily self-consciousness has been considered a sensorimotor root of self-consciousness. If this is the case, how does sensorimotor memory, which is important for the prediction of sensory consequences of volitional actions, influence awareness of bodily self-consciousness? This question is essential for understanding the effective acquisition and recovery of self-consciousness following its impairment, but it has remained unexamined. Here, we investigated how body ownership and agency recovered following body schema distortion in a virtual reality environment along with two kinds of motor memories: memories that were rapidly updated and memories that were gradually updated. We found that, although agency and body ownership recovered in parallel, the recovery of body ownership was predicted by fast memories and that of agency was predicted by slow memories. Thus, the bodily self was represented in multiple motor memories with different dynamics. This finding demystifies the controversy about the causal relationship between body ownership and agency.
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