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| Research article summary (published 30 Dec 2001): |
Role of medial temporal lobe in extensive retrieval of task-related knowledge.
Full Abstract
The role of medial temporal lobe (MTL) in deep semantic processing was examined in a triple semantic judgment task in which subjects were asked to decide which one of the two bottom words was more semantically fit to the top word. By changing the number of bottom words that are semantically related to the top word, we can disassociate effects of reactivating the "old" semantic associations and effects of establishing "new" semantic associations on the MTL. The results of event-related fMRI analysis indicated that MTL was more activated in the retrieval of old semantic associations than in the establishment of new semantic associations. The function of MTL in this semantic judgment task was explained as subserving the process of extensive retrieval of task-related knowledge.
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Author information
Author/s: Luo, Jing (J); Niki, Kazuhisa (K);
Affiliation: Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Hippocampus (Hippocampus), published in United States. (Language: eng)
Reference: 2002-; vol 12 (issue 4) : pp 487-94
Dates: Created 2002/08/30; Completed 2003/03/05; Revised 2006/11/15;
PMID: 12201633, 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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