Movement Disorders (revue)

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Visuomotor skill learning on serial reaction time task in patients with early Parkinson's disease

Identifieur interne : 004921 ( Main/Exploration ); précédent : 004920; suivant : 004922

Visuomotor skill learning on serial reaction time task in patients with early Parkinson's disease

Auteurs : Elka D. Stefanova [Yougoslavie] ; Vladimir S. Kostic [Yougoslavie] ; Ljubomir Ziropadja [Yougoslavie] ; Milan Markovic [Yougoslavie] ; Gordana G. Ocic [Yougoslavie]

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RBID : ISTEX:9F1006885FB61CDEA17468360524643F2F476B93

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English descriptors

Abstract

This study tested the role of basal ganglia in visuomotor skill learning. Thirty‐nine patients early in the course of Parkinson's disease (PD) and 30 patients after operation for an aneurysm of the anterior communicating artery (ACoA) were compared with 31 matched control subjects on a Serial Reaction Time test (SRTt). The patients with PD showed impaired visuomotor skill learning across the repeating blocks, in the presence of preserved declarative knowledge of embedded sequences, in contrast to the ACoA group in whom the reverse pattern was observed. The significant correlation in patients with PD between the standard neuropsychological and motor measures and the performance observed in the skill acquisition test, in the ACoA group and control subjects was not observed. The suggestion that this learning impairment could not be attributed to a motor deficit per se was also confirmed more directly for patients with PD. Accuracy of performance after the initial learning phase on the SRTt in patients with PD was associated predominantly with visual span capacity measures. Declarative knowledge of the embedded sequence of the SRTt was correlated to general cognitive and verbal span abilities in the PD group. The impairment observed in the PD group was not the result of a general decline in cognitive functioning, mood disturbances, or the severity of the motor symptoms.

Url:
DOI: 10.1002/1531-8257(200011)15:6<1095::AID-MDS1006>3.0.CO;2-R


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">This study tested the role of basal ganglia in visuomotor skill learning. Thirty‐nine patients early in the course of Parkinson's disease (PD) and 30 patients after operation for an aneurysm of the anterior communicating artery (ACoA) were compared with 31 matched control subjects on a Serial Reaction Time test (SRTt). The patients with PD showed impaired visuomotor skill learning across the repeating blocks, in the presence of preserved declarative knowledge of embedded sequences, in contrast to the ACoA group in whom the reverse pattern was observed. The significant correlation in patients with PD between the standard neuropsychological and motor measures and the performance observed in the skill acquisition test, in the ACoA group and control subjects was not observed. The suggestion that this learning impairment could not be attributed to a motor deficit per se was also confirmed more directly for patients with PD. Accuracy of performance after the initial learning phase on the SRTt in patients with PD was associated predominantly with visual span capacity measures. Declarative knowledge of the embedded sequence of the SRTt was correlated to general cognitive and verbal span abilities in the PD group. The impairment observed in the PD group was not the result of a general decline in cognitive functioning, mood disturbances, or the severity of the motor symptoms.</div>
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