Article (Scientific journals)
Preserved artificial grammar learning in Parkinson's disease
Meulemans, Thierry; Peigneux, Philippe; Van der Linden, Martial
1998In Brain and Cognition, 37 (1), p. 109-112
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Keywords :
implicit learning; artificial grammars; Parkinson's Disease; apprentissage implicite; grammaires artificielles; maladie de Parkinson
Abstract :
[en] Parkinson's disease (PD) patients and matched control subjects were compared in an artificial grammar learning task. The test strings were constructed in such a way that grammaticality judgments could not be based on some superficial features of the learning strings: the grammatical and nongrammatical test strings did not differ according to different measures of chunk strength (based on the frequency with which their bigrams and trigrams appear in the learning strings). Results show that PD patients and controls performed at the same level during the first presentation of the test strings series, which suggests that the striatum is not (crucially) implicated in the ability to abstract rules implicitly from exemplars generated by a finite-state grammar. However, and contrary to control subjects, the classification performance of PD patients was at chance during the second presentation of the test strings. We argue that this latter result could be the consequence of the attentional deficit of PD patients.
Disciplines :
Neurosciences & behavior
Author, co-author :
Meulemans, Thierry ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Peigneux, Philippe ;  Université de Liège - ULiège > Département des sciences cognitives > Département des sciences cognitives
Van der Linden, Martial ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Language :
English
Title :
Preserved artificial grammar learning in Parkinson's disease
Publication date :
1998
Journal title :
Brain and Cognition
ISSN :
0278-2626
eISSN :
1090-2147
Publisher :
Academic Press (Elsevier)
Volume :
37
Issue :
1
Pages :
109-112
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 06 January 2009

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