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| Research article summary (published 29 Apr 2003): |
Individual differences in prefrontal cortical activation on the Tower of London planning task: implication for effortful processing.
Full Abstract
Solving challenging ('effortful') problems is known to involve the dorsal and dorsolateral prefrontal cortex in normal volunteers, although there is considerable individual variation. In this functional magnetic resonance imaging study, we show that healthy subjects with different levels of performance in the Tower of London planning task exhibit different patterns of brain activation. All subjects exhibited significant bilateral activation in the dorsolateral prefrontal cortex, the anterior and posterior cingulate areas and the parietal cortex. However, 'standard performers' (performance < 70% correct) and 'superior performers' (performance >70% correct) differed in the patterns of activation exhibited. Superior performers showed a significantly more spatially extended activation in the left dorsolateral prefrontal cortex than did standard performers, whereas the latter group tended to show increased activation of the anterior cingulate region.
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Author information
Author/s: Cazalis, F (F); Valabrègue, R (R); Pélégrini-Issac, M (M); Asloun, S (S); Robbins, T W (TW); Granon, S (S);
Affiliation: INSERM U.483, 9 quai Saint-Bernard, 75005, Paris, France.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: The European journal of neuroscience (Eur J Neurosci), published in France. (Language: eng)
Reference: 2003-May; vol 17 (issue 10) : pp 2219-25
Dates: Created 2003/06/05; Completed 2003/07/28; Revised 2006/11/15;
PMID: 12786989, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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