Van Velzen, Jose L.; Forster, Bettina and Eimer, Martin. 2002. Temporal dynamics of lateralized ERP components elicited during endogenous attentional shifts to relevant tactile events. Psychophysiology, 39(6), pp. 874-878. ISSN 0048-5772 [Article]

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Abstract or Description

To investigate the temporal dynamics of lateralized event-related brain potential (ERP) components elicited during covert shifts of spatial attention, ERPs were recorded in a task where central visual symbolic cues instructed participants to direct attention to their left or right hand in order to detect infrequent tactile targets presented to that hand, and to ignore tactile stimuli presented to the other hand, as well as all randomly intermingled peripheral visual stimuli. In different blocks, the stimulus onset asynchrony (SOA) between cue and target was 300 ms, 700 ms, or 1,100 ms. Anterior and posterior ERP modulations sensitive to the direction of an attentional shift were time-locked to the attentional cue, rather than to the anticipated arrival of a task-relevant stimulus. These components thus appear to reflect central attentional control rather than the anticipatory preparation of sensory areas. In addition, attentional modulations of ERPs to task-irrelevant visual stimuli were found, providing further evidence for crossmodal links in spatial attention between touch and vision.

Item Type:	Article
Identification Number (DOI):	https://doi.org/10.1111/1469-8986.3960874
Departments, Centres and Research Units:	Psychology
Dates:	Date Event November 2002 Published
Item ID:	5500
Date Deposited:	01 Apr 2011 09:00
Last Modified:	04 Jul 2017 13:54
Peer Reviewed:	Yes, this version has been peer-reviewed.
URI:	https://research.gold.ac.uk/id/eprint/5500

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