Article (Scientific journals)
Effects of incidental and intentional feature binding on recognition: a behavioural and PET activation study
Lekeu, Françoise; Van der Linden, Martial; Collette, Fabienne et al.
2002In Neuropsychologia, 40 (2), p. 131-144
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Keywords :
PET; Episodic memory; Context; Colour
Abstract :
[en] Using Positron Emission Tomography (PET), we investigated cerebral regions associated with the episodic recognition of words alone and words bound to contextual colours. Two modes of colour encoding were tested: incidental and intentional word-to-colour binding. Word-only recognition was associated with brain activation in a lexico-semantic left middle temporal region and in the cerebellum following an incidental colour encoding, and with brain activation in the left posterior middle frontal gyrus, right anterior cingulate and right inferior frontal gyrus following an intentional encoding. Recognition of bound features was associated with activation in left prefrontal and superior parietal regions following an incidental colour encoding, and with preferential right prefrontal cortex activation following an intentional colour encoding. Our results are in line with the hypothesis of a parietal involvement in context processing, and prefrontal areas in monitoring retrieval processes. Our results also support the hypothesis of a 'cortical asymmetry for reflective activity' (CARA).
Disciplines :
Neurosciences & behavior
Author, co-author :
Lekeu, Françoise ;  Centre Hospitalier Universitaire de Liège - CHU > Neurologie Sart Tilman
Van der Linden, Martial ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Collette, Fabienne  ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Degueldre, Christian ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Del Fiore, Guy
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron
Franck, Georges ;  Université de Liège - ULiège > Relations académiques et scientifiques (Médecine)
Moonen, Gustave  ;  Université de Liège - ULiège > Département des sciences cliniques > Neurologie - Doyen de la Faculté de Médecine
Salmon, Eric  ;  Université de Liège - ULiège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn.
Language :
English
Title :
Effects of incidental and intentional feature binding on recognition: a behavioural and PET activation study
Publication date :
2002
Journal title :
Neuropsychologia
ISSN :
0028-3932
eISSN :
1873-3514
Publisher :
Elsevier, Oxford, United Kingdom
Volume :
40
Issue :
2
Pages :
131-144
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 February 2009

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