Between self and other in sensorimotor system

[Speaker] Asai, Tomohisa:1
1:NTT Communication Science Laboratories (Japan)

The sense of agency refers to the subjective experience of controlling one's own action. This sense is sometimes regarded as a postdictive illusion of causality. However, agency has an important function in theory. When we move our own body, we implicitly attribute that movement to ourselves and utilize that sensory information in order to correct "our own" movement. The current study examined this intrinsic relationship between self-other sensory attribution and feedback control in motor control. The current study, where the participants were asked to trace a sine wave target using a pen tablet device, examined the effect of "self or other" visual feedback on the subjective agency rating as well as on the motor performance. The result indicates that the subjective ratings and motor performance highly depend on the self-other morphing ratio of the visual feedback, suggesting the sense of agency as the coordinator within the sensorimotor dynamics.
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