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  • Title: Stress affects hedonic responses but not reaching-grasping in Parkinson's disease.
    Author: Macht M, Brandstetter S, Ellgring H.
    Journal: Behav Brain Res; 2007 Feb 12; 177(1):171-4. PubMed ID: 17129618.
    Abstract:
    Stress can transiently increase motor symptoms of Parkinson's disease (PD), but it is unclear whether other behavioural changes associated with PD are also affected. We found that reaching-grasping was impaired in 19 PD patients compared with 19 matched controls, but these impairments were not amplified by stress. However, patients showed a stress-induced reduction of hedonic responses. Stress may amplify those impairments in PD that are not accessible to cognitive control.
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