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Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture

Kennett, S; Spence, C; Driver, J; (2002) Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture. PERCEPT PSYCHOPHYS , 64 (7) 1083 - 1094. Green open access

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Abstract

We investigated the effect of unseen hand posture on cross-modal, visuo-tactile links in covert spatial attention. In Experiment 1, a spatially nonpredictive visual cue was presented to the left or right hemifleld shortly before a tactile target on either hand. To examine the spatial coordinates of any cross-modal cuing, the unseen hands were either uncrossed or crossed so that the left hand lay to the right and vice versa. Tactile up/down (i.e., index finger/thumb) judgments were better on the same side of external space as the visual cue, for both crossed and uncrossed postures. Thus, which hand was advantaged by a visual cue in a particular hemifield reversed across the different unseen postures. In Experiment 2, nonpredictive tactile cues now preceded visual targets. Up/down judgments for the latter were better on the same. side of external space as the tactile cue, again for both postures. These results demonstrate cross-modal links between vision and touch in exogenous covert spatial attention that remap across changes in unseen hand posture, suggesting a modulatory role for proprioception.

Type: Article
Title: Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture
Open access status: An open access version is available from UCL Discovery
Keywords: S-R COMPATIBILITY, AUDIOVISUAL LINKS, PERIARCUATE NEURONS, SUPERIOR COLLICULUS, AFFERENT PROPERTIES, MACAQUE MONKEYS, PARIETAL CORTEX, REACTION-TIME, MECHANISMS, SPACE
UCL classification: UCL > School of Life and Medical Sciences > Faculty of Brain Sciences > Psychology and Language Sciences (Division of) > Institute of Cognitive Neuroscience
UCL > School of Life and Medical Sciences > Faculty of Life Sciences
URI: http://discovery.ucl.ac.uk/id/eprint/3982
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