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| Research article summary (published 29 Jun 2002): |
Crossmodal links in spatial attention are mediated by supramodal control processes: evidence from event-related potentials.
Full Abstract
Crossmodal links in spatial attention were studied in an experiment where participants had to detect peripheral tactile or visual targets on the attended side, while ignoring all stimuli on the unattended side and in the currently irrelevant modality. Both relevant locations and relevant modalities were specified on a trial-by-trial basis by auditory precues. Spatial orienting in the cue-target interval was reflected in anterior negativities and occipital positivities contralateral to the cued side, either when vision or touch was cued as relevant. These effects resembled previously reported ERP modulations during shifts of visual attention, implicating supramodal mechanisms in the control of spatial attention and demonstrating their independence of cue modality. Early effects of spatial attention on somatosensory and visual ERPs were of equivalent size for currently relevant and irrelevant modalities. Results support the idea that crossmodal links in spatial attention are mediated by supramodal control mechanisms.
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Author information
Author/s: Eimer, Martin (M); Van Velzen, José (J);
Affiliation: Department of Psychology, Birkbeck College, University of London, United Kingdom. m.eimer(-atsign-)bbk.ac.uk
Journal and publication information
Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't
Journal: Psychophysiology (Psychophysiology), published in United States. (Language: eng)
Reference: 2002-Jul; vol 39 (issue 4) : pp 437-49
Dates: Created 2002/09/05; Completed 2002/10/01; Revised 2006/11/15;
PMID: 12212636, 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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