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| Research article summary (published 30 Jan 2002): |
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Face repetition effects in implicit and explicit memory tests as measured by fMRI.
Full Abstract
Recent parallels between neurophysiological and neuroimaging findings suggest that repeated stimulus processing produces decreased responses in brain regions associated with that processing--a 'repetition suppression' effect. In the present study, volunteers performed two tasks on repeated presentation of famous and unfamiliar faces during functional magnetic resonance imaging (fMRI). In the implicit task, they made fame-judgements (regardless of repetition); in the explicit task, they made episodic recognition judgements (regardless of familiarity). Only in the implicit task was repetition suppression observed:
for famous faces in a right lateral fusiform region, and for both famous and unfamiliar faces in a left inferior occipital region. Repetition suppression is therefore not an automatic consequence of repeated perceptual processing of stimuli.
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Author information
Author/s: Henson, R N A (RN); Shallice, T (T); Gorno-Tempini, M L (ML); Dolan, R J (RJ);
Affiliation: Wellcome Department of Cognitive Neurology, University College London, 17 Queen Square, London WC1N 3AR, UK. r.henson(-atsign-)ucl.ac.uk
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Cerebral cortex (New York, N.Y. : 1991) (Cereb Cortex), published in United States. (Language: eng)
Reference: 2002-Feb; vol 12 (issue 2) : pp 178-86
Dates: Created 2001/12/12; Completed 2002/03/14; Revised 2006/11/15;
PMID: 11739265, 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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