抄録
Emotional and social cognitive function have been reported to be impaired in Parkinson's disease (PD). Recent studies have revealed that social cognition tasks, such as facial expression recognition, mind-reading, and decision-making, are impaired in PD. PD patients show deficits in recognizing negative facial emotions, such as fear and disgust. Theory of mind ability measured by the “reading mind in the eyes” test is impaired in PD patients, and that this finding was is attributable to the visual processing of faces or the verbal comprehension of emotional adjectives. They also show disadvantageous decision-making, which is related to decreased emotional responses, as measured by skin conductance responses. Caution should be exercised because the social cognitive dysfunction is mainly non-verbal and seems to affect at a level beneath patient's awareness.
