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| Research article summary (published 29 Jun 2003): |
Enhanced extrastriate activation during observation of distorted finger postures.
Full Abstract
Hand and finger postures of other people are important body language cues that strongly contribute to the observer's decision about the person's intentions, thoughts, and attentional state. We compared neuromagnetic cortical activation elicited by color images of natural and distorted finger postures. The distorted postures contained computer-deformed joint angles and thereby easily caught the observer's attention. From about 260 msec onwards, extrastriate occipital areas of both hemispheres were activated more strongly by distorted than natural finger postures. We interpret this result as an early top-down effect of emotional valence on the processing of unusual hand shapes in the extrastriate visual cortex.
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Author information
Author/s: Avikainen, Sari (S); Liuhanen, Sasu (S); Schürmann, Martin (M); Hari, Riitta (R);
Affiliation: Helsinki University of Technology, Espoo, Finland. hari(-atsign-)neuro.hut.fi
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
Journal: Journal of cognitive neuroscience (J Cogn Neurosci), published in United States. (Language: eng)
Reference: 2003-Jul; vol 15 (issue 5) : pp 658-63
Dates: Created 2003/09/10; Completed 2003/10/14; Revised 2006/11/15;
PMID: 12965039, 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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