Schizophrenia and Corollary Discharge: A Neuroscientific Overview and Translational Implications
10.9758/cpn.2019.17.2.170
- Author:
Rujuta PARLIKAR
1
;
Anushree BOSE
;
Ganesan VENKATASUBRAMANIAN
Author Information
1. WISER Program, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, India. gvs@nimhans.ac.in
- Publication Type:Review
- Keywords:
Corollary discharge;
Efference copy;
Motor activity;
Auditory hallucination;
Transcranial direct current stimulation
- MeSH:
Animals;
Discrimination (Psychology);
Hallucinations;
Motor Activity;
Psychopathology;
Schizophrenia;
Transcranial Direct Current Stimulation
- From:Clinical Psychopharmacology and Neuroscience
2019;17(2):170-182
- CountryRepublic of Korea
- Language:English
-
Abstract:
Corollary discharge mechanism refers to the suppression of sensory consequences of self-generated actions; a process that serves to distinguish between self and non-self based on discrimination of origination of action. It explains, say for example, why we cannot tickle ourselves. This review discusses how corollary discharge model is an essential neural integration mechanism central to the motor functioning of animal kingdom. In this article, research conducted in the field of corollary discharge has been reviewed to understand the neuroanatomical and neurophysiological basis of corollary discharge and gain insight into the biochemical basis of its dysfunction. This review article also explores the role of corollary discharge and its dysfunction in the presentation of symptoms of schizophrenia, discussing the findings from corollary discharge studies on schizophrenia population. Lastly, the link between schizophrenia psychopathology and corollary discharge dysfunction has been highlighted, and an attempt has been made to establish a case for correction of corollary discharge deficit in schizophrenia through neuromodulation.
