MovDisordV3, Main, Exploration, bibRecordById, Pascal:07-0393265

Inhibitory control and spatial working memory in Parkinson's disease

Identifieur interne : 002D97 ( Main/Exploration ); précédent : 002D96; suivant : 002D98

Inhibitory control and spatial working memory in Parkinson's disease

Auteurs : Caroline Gurvich [Australie] ; Nellie Georgiou-Karistianis [Australie] ; Paul B. Fitzgerald [Australie] ; Lyn Millist [Australie] ; Owen B. White [Australie]

Source :

Movement Disorders [ 0885-3185 ] ; 2007-07-30.

RBID : ISTEX:F674BB24042908E6C16574940AECA1C584F0C8DF

Descripteurs français

Pascal (Inist)
- Mémoire spatiale, Mémoire travail, Parkinson maladie, Système nerveux pathologie.

English descriptors

KwdEn :
- Aged, Analysis of Variance, Attention (physiology), Case-Control Studies, Humans, Inhibition (Psychology), Memory, Short-Term (physiology), Middle Aged, Nervous system diseases, Neuropsychological Tests, Parkinson Disease (physiopathology), Parkinson disease, Parkinson's disease, Reaction Time (physiology), Saccades (physiology), Space Perception (physiology), Spatial memory, Working memory, inhibitory control, saccades, spatial working memory.
MESH :
- physiology : Attention, Memory, Short-Term, Reaction Time, Saccades, Space Perception.
- physiopathology : Parkinson Disease.
- Aged, Analysis of Variance, Case-Control Studies, Humans, Inhibition (Psychology), Middle Aged, Neuropsychological Tests.

Abstract

Patients with Parkinson's disease (PD) have difficulty performing tasks relying on inhibitory control and working memory, functions of the prefrontal cortex. Eye movement paradigms can be used to investigate basic sensorimotor functions and higher order cognitive aspects of motor control. This study investigated inhibitory control and spatial working memory in the saccadic system of 13 individuals with mild‐moderate PD and 13 age‐matched controls. Tasks explored suppression of reflexive saccades during qualitatively different tasks, generation of express and anticipatory saccades, and the ability to respond to occasional, unpredictable (“oddball”) targets that occurred during a sequence of well‐learned, reciprocating saccades between horizontal targets. Spatial working memory was assessed using single and two‐step (involving a visually guided saccade during the delay period) memory‐guided tasks. Results for the PD group indicated an increased percentage of response selection errors during an oddball task, reduced suppression of inappropriate reflexive saccades during memory‐guided tasks (but not during fixation or saccade‐engagement tasks), and an increased percentage of express and anticipatory saccades. Spatial working memory was preserved in the PD group during single and two‐step memory‐guided tasks. These findings are consistent with dysfunction within fronto‐striatal and prefrontal‐collicular pathways influencing suppression and selection of eye movements. © 2007 Movement Disorder Society

Url:

https://api.istex.fr/document/F674BB24042908E6C16574940AECA1C584F0C8DF/fulltext/pdf

DOI: 10.1002/mds.21510

Affiliations:

Australie

Le document en format XML

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<front><div type="abstract" xml:lang="en">Patients with Parkinson's disease (PD) have difficulty performing tasks relying on inhibitory control and working memory, functions of the prefrontal cortex. Eye movement paradigms can be used to investigate basic sensorimotor functions and higher order cognitive aspects of motor control. This study investigated inhibitory control and spatial working memory in the saccadic system of 13 individuals with mild‐moderate PD and 13 age‐matched controls. Tasks explored suppression of reflexive saccades during qualitatively different tasks, generation of express and anticipatory saccades, and the ability to respond to occasional, unpredictable (“oddball”) targets that occurred during a sequence of well‐learned, reciprocating saccades between horizontal targets. Spatial working memory was assessed using single and two‐step (involving a visually guided saccade during the delay period) memory‐guided tasks. Results for the PD group indicated an increased percentage of response selection errors during an oddball task, reduced suppression of inappropriate reflexive saccades during memory‐guided tasks (but not during fixation or saccade‐engagement tasks), and an increased percentage of express and anticipatory saccades. Spatial working memory was preserved in the PD group during single and two‐step memory‐guided tasks. These findings are consistent with dysfunction within fronto‐striatal and prefrontal‐collicular pathways influencing suppression and selection of eye movements. © 2007 Movement Disorder Society</div>
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Movement Disorders (revue)

Inhibitory control and spatial working memory in Parkinson's disease

Inhibitory control and spatial working memory in Parkinson's disease

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

	Movement Disorders (revue)
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