Word processing in Parkinson's disease is impaired for action verbs but not for concrete nouns.
Identifieur interne : 000D19 ( PubMed/Corpus ); précédent : 000D18; suivant : 000D20Word processing in Parkinson's disease is impaired for action verbs but not for concrete nouns.
Auteurs : Véronique Boulenger ; Laura Mechtouff ; Stéphane Thobois ; Emmanuel Broussolle ; Marc Jeannerod ; Tatjana A. NazirSource :
- Neuropsychologia [ 0028-3932 ] ; 2008.
English descriptors
- KwdEn :
- Aged, Analysis of Variance, Antiparkinson Agents (therapeutic use), Case-Control Studies, Cues, Female, Humans, Language Disorders (complications), Language Disorders (diagnosis), Language Disorders (drug therapy), Levodopa (therapeutic use), Male, Middle Aged, Motor Cortex (drug effects), Motor Cortex (physiology), Motor Cortex (physiopathology), Motor Skills, Parkinson Disease (complications), Parkinson Disease (drug therapy), Parkinson Disease (physiopathology), Reaction Time (drug effects), Reaction Time (physiology), Reference Values, Semantics, Terminology as Topic.
- MESH :
- chemical , therapeutic use : Antiparkinson Agents, Levodopa.
- complications : Language Disorders, Parkinson Disease.
- diagnosis : Language Disorders.
- drug effects : Motor Cortex, Reaction Time.
- drug therapy : Language Disorders, Parkinson Disease.
- physiology : Motor Cortex, Reaction Time.
- physiopathology : Motor Cortex, Parkinson Disease.
- Aged, Analysis of Variance, Case-Control Studies, Cues, Female, Humans, Male, Middle Aged, Motor Skills, Reference Values, Semantics, Terminology as Topic.
Abstract
Recent studies have demonstrated that processing of action words recruits cortical motor regions that are also involved in the planning and execution of the actions words refer to. The functional role of these regions in word understanding remains, however, to be clarified. The present study investigates this issue by examining the impact of Parkinson's disease (PD) on lexical decision performance for action words, relative to concrete nouns, in a masked priming paradigm. Priming effects for the two word categories were measured in non-demented PD patients off and on dopaminergic treatment, and in healthy participants. Our results revealed that although overall performances did not differ between verbs and nouns, priming effects showed a clear dissociation between word categories. While priming for concrete nouns was not affected by Levodopa intake, it dissociated as a function of treatment for action verbs. No priming was actually obtained for action verbs in PD patients off dopaminergic treatment. Following Levodopa intake, this deficit recovered, however, because priming effects for verbs became comparable to those for concrete nouns and similar to performance of healthy participants. Overall, this study thus brings compelling evidence that processing lexico-semantic information about action words depends on the integrity of the motor system.
DOI: 10.1016/j.neuropsychologia.2007.10.007
PubMed: 18037143
Links to Exploration step
pubmed:18037143Le document en format XML
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<author><name sortKey="Boulenger, Veronique" sort="Boulenger, Veronique" uniqKey="Boulenger V" first="Véronique" last="Boulenger">Véronique Boulenger</name>
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<author><name sortKey="Mechtouff, Laura" sort="Mechtouff, Laura" uniqKey="Mechtouff L" first="Laura" last="Mechtouff">Laura Mechtouff</name>
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<author><name sortKey="Thobois, Stephane" sort="Thobois, Stephane" uniqKey="Thobois S" first="Stéphane" last="Thobois">Stéphane Thobois</name>
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<front><div type="abstract" xml:lang="en">Recent studies have demonstrated that processing of action words recruits cortical motor regions that are also involved in the planning and execution of the actions words refer to. The functional role of these regions in word understanding remains, however, to be clarified. The present study investigates this issue by examining the impact of Parkinson's disease (PD) on lexical decision performance for action words, relative to concrete nouns, in a masked priming paradigm. Priming effects for the two word categories were measured in non-demented PD patients off and on dopaminergic treatment, and in healthy participants. Our results revealed that although overall performances did not differ between verbs and nouns, priming effects showed a clear dissociation between word categories. While priming for concrete nouns was not affected by Levodopa intake, it dissociated as a function of treatment for action verbs. No priming was actually obtained for action verbs in PD patients off dopaminergic treatment. Following Levodopa intake, this deficit recovered, however, because priming effects for verbs became comparable to those for concrete nouns and similar to performance of healthy participants. Overall, this study thus brings compelling evidence that processing lexico-semantic information about action words depends on the integrity of the motor system.</div>
</front>
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<Abstract><AbstractText>Recent studies have demonstrated that processing of action words recruits cortical motor regions that are also involved in the planning and execution of the actions words refer to. The functional role of these regions in word understanding remains, however, to be clarified. The present study investigates this issue by examining the impact of Parkinson's disease (PD) on lexical decision performance for action words, relative to concrete nouns, in a masked priming paradigm. Priming effects for the two word categories were measured in non-demented PD patients off and on dopaminergic treatment, and in healthy participants. Our results revealed that although overall performances did not differ between verbs and nouns, priming effects showed a clear dissociation between word categories. While priming for concrete nouns was not affected by Levodopa intake, it dissociated as a function of treatment for action verbs. No priming was actually obtained for action verbs in PD patients off dopaminergic treatment. Following Levodopa intake, this deficit recovered, however, because priming effects for verbs became comparable to those for concrete nouns and similar to performance of healthy participants. Overall, this study thus brings compelling evidence that processing lexico-semantic information about action words depends on the integrity of the motor system.</AbstractText>
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