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| Research article summary (published 30 Dec 2002): |
Common prefrontal activations during working memory, episodic memory, and semantic memory.
Full Abstract
Regions of the prefrontal cortex (PFC) are typically activated in many different cognitive functions. In most studies, the focus has been on the role of specific PFC regions in specific cognitive domains, but more recently similarities in PFC activations across cognitive domains have been stressed. Such similarities may suggest that a region mediates a common function across a variety of cognitive tasks. In this study, we compared the activation patterns associated with tests of working memory, semantic memory and episodic memory. The results converged on a general involvement of four regions across memory tests. These were located in left frontopolar cortex, left mid-ventrolateral PFC, left mid-dorsolateral PFC and dorsal anterior cingulate cortex. These findings provide evidence that some PFC regions are engaged during many different memory tests. The findings are discussed in relation to theories about the functional contribution of the PFC regions and the architecture of memory.
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Author information
Author/s: Nyberg, Lars (L); Marklund, Petter (P); Persson, Jonas (J); Cabeza, Roberto (R); Forkstam, Christian (C); Petersson, Karl Magnus (KM); Ingvar, Martin (M);
Affiliation: Department of Psychology, Umeå University, S-901 87, Umeå, Sweden. lars.nyberg(-atsign-)psy.umu.se
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuropsychologia (Neuropsychologia), published in England. (Language: eng)
Reference: 2003-; vol 41 (issue 3) : pp 371-7
Dates: Created 2002/11/29; Completed 2003/03/05; Revised 2006/11/15;
PMID: 12457761, 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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