Twenty-one Parkinsonian patients were tested in on and off phases during chronic levodopa therapy for cognitive function, affective status, and evaluation of motor performance with reaction and movement times. A worsening ofmood was observed from the on to the off phase. No variation in cognitive performance was observed from the on to the off phase in spite of evident motor changes. Mood changes during on-off variations may reflect involvement of mesocortical and mesolimbic dopaminergic systems.
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Neuropsychology and Physiological Psychology
- Psychiatry and Mental health