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

Kennett, Steffan and Spence, Charles and Driver, Jon (2002) 'Visuo-tactile links in covert exogenous spatial attention remap across changes in unseen hand posture.' Perception & Psychophysics, 64 (7). pp. 1083-1094. ISSN 0031-5117

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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 hemifield 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.

Item Type: Article
Uncontrolled Keywords: Hand; Humans; Cues; Space Perception; Touch; Visual Perception; Attention; Posture; Vibration; Adolescent; Adult; Female; Male; Discrimination, Psychological
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health
Faculty of Science and Health > Psychology, Department of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 13 Feb 2015 20:53
Last Modified: 18 Aug 2022 10:54
URI: http://repository.essex.ac.uk/id/eprint/12589

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