Corollary discharge (CD) impairment has been hypothesized to be a neurophysiological mechanism involved in the development of specific psychotic symptoms.1 Corollary discharge signals are copies of motor commands used to form a prediction of the sensation from self-generated movements, thereby contributing to the sense of self-agency. In more concrete terms, individuals have a subjective experience of volitionally controlling their own acts when the predicted sensation matches the actual sensation.
Poletti M, Gebhardt E, Raballo A. Corollary Discharge, Self-agency, and the Neurodevelopment of the Psychotic Mind. JAMA Psychiatry. 2017;74(11):1169–1170. doi:10.1001/jamapsychiatry.2017.2824
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