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From the Department of Neurology, University of Florida College of Medicine, and the Veterans Administration Medical Center, Gainesville, FL.
Supported by the Memory Disorders Clinics, Department of Elder Affairs of the State of Florida; the Department of Veterans Affairs Research Service; and grant RO1MH48861.
Received November 1, 1994. Accepted in final form February 3, 1995.
Address correspondence and reprint requests to Dr. Daniel H. Jacobs, Department of Neurology, New England Medical Center, 750 Washington Street, Boston, MA 02111.
Patients with Parkinson's disease (PD) may be impaired at expressing emotional faces and perceiving emotional facial affect.We tested the hypothesis that patients with PD may be impaired at imaging emotional faces. We first compared 12 patients with PD and 30 control subjects on perceptual and imagery tasks. Patients were significantly impaired on a task of emotional facial imagery but not on a control task of object imagery. Patients were also impaired on a task of perceiving emotional faces. Subsequently, we found that PD patients were impaired relative to controls on making emotional faces. Performance on both the perceptual and motor tasks of facial expression significantly correlated with performance on the emotional facial imagery task. We suggest that the basal ganglia, together with the right hemisphere, are part of a neural network subserving emotional facial tasks.
NEUROLOGY 1995;45: 1696-1702
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