Abstract
Instrumental measurement of response assets and movement behaviour gained importance as addition to rating procedures to determine the efficacy of therapeutic interventions in patients with Parkinson's disease. Objectives were to determine the response to standardised 100mg levodopa application with repeat performance of complex and simple instrumental tests in relation to scored motor behaviour in 53 previously treated patients. Levodopa improved rating scores of motor impairment, execution of complicated movement patterns and complex reaction time. Computed improvements in these instrumental test results correlated with each other. Execution of the simple reaction time paradigm and of plain movement sequences did not ameliorate after levodopa. The changes of these simple test results were not associated to each other. These different response patterns result from the higher cognitive demand of dopamine sensitive association areas of the prefrontal cortex and mesolimbic system for the complex test execution in contrast to the simple task performance.
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Schedule a callMore From: Journal of neural transmission (Vienna, Austria : 1996)
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