2007
DOI: 10.3138/cja.26.3.227
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Problème d'accès ou déficit de stockage ? Apport du niveau de complexité de la tâche à l'étude des troubles sémantiques lors du vieillissement pathologique : le cas de la maladie d'Alzheimer

Abstract: This study investigates three principal aspects of semantic memory processing in Alzheimer's disease: word finding, knowledge of the specific and generic attributes of concepts. Semantic memory is assessed by a range of verbal and visual tasks differentiated according to their level of complexity. Our hypothesis is that the processing of these types of information is modulated by the degree of effortful processing required by the tasks. The AD patients show more important difficulties on the tasks of high leve… Show more

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Cited by 5 publications
(3 citation statements)
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“…Thus, it appears that syntactic properties of the sentence can facilitate the abilities of HOA and those with mild AD to carry out operations such as those involved in retrieval of target information [ 66 ]. There is data which indicates that patients with mild AD retain their knowledge of semantic features, but they have difficulty voluntarily accessing it because the information is disorganized [ 67 ]. The results of the present study suggest that, first of all, these individuals' performance is improved in encoding because the sentence context and picture generate sets of feature restrictions that serve to organize and integrate the words and allow the formation of a comprehensive mental image [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
“…Thus, it appears that syntactic properties of the sentence can facilitate the abilities of HOA and those with mild AD to carry out operations such as those involved in retrieval of target information [ 66 ]. There is data which indicates that patients with mild AD retain their knowledge of semantic features, but they have difficulty voluntarily accessing it because the information is disorganized [ 67 ]. The results of the present study suggest that, first of all, these individuals' performance is improved in encoding because the sentence context and picture generate sets of feature restrictions that serve to organize and integrate the words and allow the formation of a comprehensive mental image [ 15 ].…”
Section: Discussionmentioning
confidence: 99%
“…Par ailleurs, bien que dans ce travail, l’intercorrélation perceptivo-fonctionnelle ait été contrôlé, l’étude s’est centrée sur le traitement des traits perceptifs sans en évaluer explicitement le traitement des traits fonctionnels. Or, il semblerait que les traits fonctionnels soient également importants dans la structuration des connaissances (Mandler, 2000; Rico Duarte, Syssau, Launay, Jiménez & Terrier, 2007). À ce titre, la distinction en fonction de l’information qui véhicule le trait (perceptif par opp.…”
Section: Discussionunclassified
“…percevoir, les différences de complexité et de nature des processus cognitifs sous-tendant les deux types de tâches sont imputables aux tâches elles-mêmes et non à l'âge (elles pourraient, tout aussi bien, se manifester chez des sujets âgés : Rico Duarte et al, 2007). Nous remercions Liliana Rico Duarte pour ces précisions sur les corrélats cognitifs des activités soumises aux élèves.…”
Section: Bilan Et Perspectivesunclassified