Risk and learning in impulsive and non-impulsive patients with Parkinson’s disease
Identifieur interne : 002D91 ( Ncbi/Curation ); précédent : 002D90; suivant : 002D92Risk and learning in impulsive and non-impulsive patients with Parkinson’s disease
Auteurs : Atbin Djamshidian [Royaume-Uni, Autriche] ; Ashwani Jha [Royaume-Uni] ; Sean S. O Ullivan [Royaume-Uni] ; Laura Silveira-Moriyama [Royaume-Uni] ; Clare Jacobson [Royaume-Uni] ; Peter Brown [Royaume-Uni] ; Andrew Lees (neurologue) [Royaume-Uni] ; Bruno B. Averbeck [Royaume-Uni]Source :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2010.
English descriptors
- KwdEn :
- MESH :
- complications : Parkinson Disease.
- etiology : Impulsive Behavior.
- physiology : Learning, Memory, Short-Term.
- Aged, Analysis of Variance, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Risk Factors.
Abstract
Relatively little is known about the interaction between behavioural changes, medication and cognitive function in Parkinson’s disease. We examined working memory, learning and risk aversion in patients with Parkinson’s disease (PD) with and without impulsive or compulsive behaviour and compared to a group of age-matched control subjects. Parkinson patients with impulsive or compulsive behaviour (PD+ ICB) had poorer working memory performance than either controls or PD patients without ICB. PD+ICB patients also showed decreased learning from negative feedback and increased learning from positive feedback off compared to on dopaminergic medication. This interaction between medication status and learning was the opposite of that found in the PD patients without a diagnosis of ICB. Finally, the PD group showed increased risk preference on medication relative to controls and the subgroup of PD+ICB patients with pathological gambling were overall more risk prone than the PD group. Thus, medication status and an impulsive behavioural diagnosis differentially affect several behaviors in PD.
Url:
DOI: 10.1002/mds.23247
PubMed: 20721918
PubMed Central: 3093055
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PMC:3093055Le document en format XML
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<front><div type="abstract" xml:lang="en"><p id="P1">Relatively little is known about the interaction between behavioural changes, medication and cognitive function in Parkinson’s disease. We examined working memory, learning and risk aversion in patients with Parkinson’s disease (PD) with and without impulsive or compulsive behaviour and compared to a group of age-matched control subjects. Parkinson patients with impulsive or compulsive behaviour (PD+ ICB) had poorer working memory performance than either controls or PD patients without ICB. PD+ICB patients also showed decreased learning from negative feedback and increased learning from positive feedback off compared to on dopaminergic medication. This interaction between medication status and learning was the opposite of that found in the PD patients without a diagnosis of ICB. Finally, the PD group showed increased risk preference on medication relative to controls and the subgroup of PD+ICB patients with pathological gambling were overall more risk prone than the PD group. Thus, medication status and an impulsive behavioural diagnosis differentially affect several behaviors in PD.</p>
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