Neural correlates of motor conversion disorder.
Conversion Disorder affects voluntary motor and sensory function and involves unexplained neurological symptoms without an organic cause. Many researchers have attempted to explain how these symptoms arise but the neural correlates associated with Conversion Disorder remain largely unknown to clinicians and neuroscientists alike. This review focuses on investigations of Conversion Disorder (with motor symptoms) when deficits in voluntary movement occur. No single consistent hypothesis has emerged regarding the underlying cortical mechanisms associated with motor Conversion Disorder. However, findings from electrophysiology, neuroimaging, and behavioral research implicate the involvement of prefrontal networks. With further research using measurement techniques precise in spatial as well as temporal resolution, the conflict associated with two views of the neural correlates of motor Conversion Disorder may be resolved. This will provide a better understanding of the impairment associated with the preparation, generation, and execution of intentional movement in Conversion Disorder.
Scott
Rebekah L
RL
School of Physical Education, and the Brain Health and Repair Research Centre, University of Otago, New Zealand.
Anson
J Gregory
JG
D001921:Brain / Q000503:physiopathology*; D001931:Brain Mapping; D003291:Conversion Disorder / Q000503:physiopathology*; D004594:Electrophysiology; D006801:Humans; D007092:Imagination; D009044:Motor Cortex / Q000503:physiopathology; D011596:Psychomotor Disorders / Q000503:physiopathology*; D014836:Volition / Q000502:physiology