Article (Scientific journals)
Mapping the updating process: common and specific brain activations across different versions of the running span task
Collette, Fabienne; Van der Linden, Martial; Laureys, Steven et al.
2007In Cortex: A Journal Devoted to the Study of the Nervous System and Behavior, 43 (1), p. 146-158
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Keywords :
executive functions; updating; functional imaging; frontal; parietal
Abstract :
[en] Neuroimaging studies exploring the neural substrates of executive functioning have only rarely investigated whether the non-executive characteristics of the experimental executive tasks could contribute to the observed brain activations. The aim of this study was to determine cerebral activity in three different tasks involving the updating executive function. The experimental updating tasks required subjects to process strings of items (respectively letters, words, and sounds) of unknown lengths, and then to recall or identify a specific number of presented items. Conjunction and functional connectivity analyses demonstrated that the cerebral areas activated by all three experimental tasks are the left frontopolar cortex, bilateral dorsolateral prefrontal and premotor cortex, bilateral intraparietal sulcus, right inferior parietal lobule and cerebellum. Some regions of this network appear to be more specific to each updating task. These results clearly indicate that the neural substrates underlying a specific executive process (in this case, updating) are modulated by the exact requirements of the task (such as the material to process or the kind of response) and the specific cognitive processes associated with updating.
Disciplines :
Neurosciences & behavior
Author, co-author :
Collette, Fabienne  ;  Université de Liège - ULiège > Département des sciences cognitives > Neuropsychologie
Van der Linden, Martial ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Laureys, Steven  ;  Université de Liège - ULiège > Centre de recherches du Cyclotron
Arigoni, Flavia;  Université de Liège - ULiège > Département des Sciences Cognitives > Neuropsychologie
Del Fiore, Guy;  Université de Liège - ULiège > Centre de Recherche du Cyclotron
Degueldre, Christian  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron
Salmon, Eric  ;  Université de Liège - ULiège > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn.
Language :
English
Title :
Mapping the updating process: common and specific brain activations across different versions of the running span task
Publication date :
January 2007
Journal title :
Cortex: A Journal Devoted to the Study of the Nervous System and Behavior
ISSN :
0010-9452
eISSN :
1973-8102
Publisher :
Masson Divisione Periodici, Milano, Italy
Volume :
43
Issue :
1
Pages :
146-158
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Site de la revue: http://www.elsevier.com/wps/find/journaldescription.cws_home/714334/description#description
Available on ORBi :
since 10 February 2009

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