Abstract
Obsessive-Compulsive Disorder (OCD) patients are known to have various functional impairments in prefrontal and motor areas. For instance, larger readiness potential has been previously found among OCD patients. Here, we propose to use lateralized readiness potentials (LRP) to assess motor preparation in OCD patients. In a stimulus-response compatibility task, LRPs are used to evaluate the motor preparation processes when the compatibility between a stimulus and the expected response varies. Consistent with the literature, we hypothesized that OCD patients would show larger Gratton dip (activation of the incompatible response) and LRP peak, as well as a delayed LRP onset.
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