ParkinsonCanadaV1, Main, Exploration, bibRecord, 002B29

Effects of parkinson disease on two putative nondeclarative learning tasks : Probabilistic classification and gambling

Identifieur interne : 002B29 ( Main/Exploration ); précédent : 002B28; suivant : 002B30

Effects of parkinson disease on two putative nondeclarative learning tasks : Probabilistic classification and gambling

Auteurs : James G. Perretta [Canada] ; Giovanna Pari [Canada] ; Richard J. Beninger [Canada]

Source :

Cognitive and behavioral neurology [ 1543-3633 ] ; 2005.

RBID : Pascal:06-0091682

Descripteurs français

Pascal (Inist)
- Parkinson maladie, Apprentissage, Processus acquisition, Classification, Jeu hasard, Mémoire non déclarative, Cognition, Homme.
Wicri :
- topic : Classification, Homme.

English descriptors

KwdEn :
- Acquisition process, Aged, Classification, Cognition, Dementia (psychology), Disease Progression, Female, Gambling (psychology), Gambling game, Human, Humans, Learning, Learning (physiology), Male, Mental Processes (physiology), Models, Statistical, Neostriatum (physiology), Nerve Net (physiology), Neuropsychological Tests, Non declarative memory, Parkinson Disease (psychology), Parkinson disease, Prefrontal Cortex (physiology), Surveys and Questionnaires.
MESH :
- physiology : Learning, Mental Processes, Neostriatum, Nerve Net, Prefrontal Cortex.
- psychology : Dementia, Gambling, Parkinson Disease.
- Aged, Classification, Disease Progression, Female, Humans, Male, Models, Statistical, Neuropsychological Tests, Surveys and Questionnaires.

Abstract

Objective: To assess performance on two nondeclarative (implicit) memory tasks of Parkinson disease (PD) patients without dementia in the earlier or later stages of the disease (Hoehn and Yahr Scale scores of 1-2.5 or 3-4, respectively). Background: Different subtypes of nondeclarative memory appear to depend on different components of frontostriatal circuitry. Performance on a probabilistic classification learning (PCL) task was impaired by striatal damage (eg, in PD or Huntington disease) but not by circumscribed frontal lobe damage. On the other hand, performance on the Iowa Gambling Task (IGT) was impaired by damage to the prefrontal cortex. Method and Results: On the PCL, the learning of the control (age- and education-matched) group (n = 19) and the early PD group (n = 16) was comparable with each other, and both groups showed better performance than the later PD group (n = 16). On the IGT, the control group learned better than both of the PD groups. The control and early PD groups were similar on measures from the Wisconsin Card Sorting Test, Stroop Test, Mini-Mental State Examination, and Beck Depression Inventory II. Conclusions: The PCL and IGT tasks appear to rely on different parts of the frontostriatal circuitry in patients with early PD. The current finding that IGT performance was impaired in early PD implies ventromedial prefrontal cortical dysfunction early in the disease.

Affiliations:

Canada

Le document en format XML

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<front><div type="abstract" xml:lang="en">Objective: To assess performance on two nondeclarative (implicit) memory tasks of Parkinson disease (PD) patients without dementia in the earlier or later stages of the disease (Hoehn and Yahr Scale scores of 1-2.5 or 3-4, respectively). Background: Different subtypes of nondeclarative memory appear to depend on different components of frontostriatal circuitry. Performance on a probabilistic classification learning (PCL) task was impaired by striatal damage (eg, in PD or Huntington disease) but not by circumscribed frontal lobe damage. On the other hand, performance on the Iowa Gambling Task (IGT) was impaired by damage to the prefrontal cortex. Method and Results: On the PCL, the learning of the control (age- and education-matched) group (n = 19) and the early PD group (n = 16) was comparable with each other, and both groups showed better performance than the later PD group (n = 16). On the IGT, the control group learned better than both of the PD groups. The control and early PD groups were similar on measures from the Wisconsin Card Sorting Test, Stroop Test, Mini-Mental State Examination, and Beck Depression Inventory II. Conclusions: The PCL and IGT tasks appear to rely on different parts of the frontostriatal circuitry in patients with early PD. The current finding that IGT performance was impaired in early PD implies ventromedial prefrontal cortical dysfunction early in the disease.</div>
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La maladie de Parkinson au Canada (serveur d'exploration)

Effects of parkinson disease on two putative nondeclarative learning tasks : Probabilistic classification and gambling

Effects of parkinson disease on two putative nondeclarative learning tasks : Probabilistic classification and gambling

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	La maladie de Parkinson au Canada (serveur d'exploration)
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.