Reference : Mapping the updating process: common and specific brain activations across different ...
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
http://hdl.handle.net/2268/5941
Mapping the updating process: common and specific brain activations across different versions of the running span task
English
Collette, Fabienne mailto [Université de Liège - ULg > Département des sciences cognitives > Neuropsychologie >]
Van der Linden, Martial mailto [Université de Liège - ULg > Département des sciences cognitives > Psychopathologie cognitive >]
Laureys, Steven mailto [Université de Liège - ULg > > Centre de recherches du Cyclotron > > >]
Arigoni, Flavia [> Université de Liège - ULg > > Département des Sciences Cognitives > Neuropsychologie > >]
Del Fiore, Guy [Université de Liège - ULg > Centre de Recherche du Cyclotron > > >]
Degueldre, Christian mailto [Université de Liège - ULg > > Centre de recherches du cyclotron >]
Luxen, André mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron >]
Salmon, Eric mailto [Université de Liège - ULg > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn. >]
Jan-2007
Cortex : A Journal Devoted to the Study of the Nervous System & Behavior
Masson Divisione Periodici
43
1
146-158
Yes (verified by ORBi)
International
0010-9452
Milano
[en] executive functions ; updating ; functional imaging ; frontal ; parietal
[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.
Researchers
http://hdl.handle.net/2268/5941
http://www.sciencedirect.com/science/journal/00109452
Site de la revue: http://www.elsevier.com/wps/find/journaldescription.cws_home/714334/description#description

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