Parkinson's disease: The psychological aspects of a chronic illness.

In a review of the literature on the psychological and social aspects of Parkinson's disease, it is noted that since the discovery of the underlying neuropathology of parkinsonism, research on its psychological aspects has had a biomedical orientation and has focused almost exclusively on the depression and cognitive impairment observed in a substantial proportion of Parkinson's patients. Present evidence does not permit firm conclusions about the relative contributions of neurological and psychosocial factors to these symptoms. Methodological problems, reliance on indirect evidence, and the paucity of psychosocial data all contribute to the inconclusiveness of the findings. It is argued that a comprehensive understanding of the psychological aspects of Parkinson's disease depends on combining the investigation of how individual patients experience and adapt to their illness with the prevailing biomedical approach to research. (117 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)