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Persistence of visual-tactile enhancement in humans

Taylor-Clarke, M and Kennett, S and Haggard, P (2004) 'Persistence of visual-tactile enhancement in humans.' Neuroscience Letters, 354 (1). 22 - 25. ISSN 0304-3940

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Abstract

We report two experiments in which non-informative vision of the finger enhanced tactile acuity on the fingertip. The right index finger was passively lifted to contact a grating. Twelve participants judged orientations of tactile gratings while viewing either the fingertip, or a neutral object presented via a mirror at the fingertip's location. In Expt. 1, tactile orientation discrimination for near-threshold gratings was improved when viewing the fingertip, compared to viewing the neutral object. Experiment 2 examined the temporal persistence of this effect, and found significant visual-tactile enhancement when a dark interval of up to 10 s intervened between viewing the finger and tactile stimulation. These results suggest that viewing the body modulates the neural circuitry of primary somatosensory cortex, outlasting visual inputs. © 2003 Elsevier Ireland Ltd. All rights reserved.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Users 161 not found.
Date Deposited: 13 Feb 2015 20:56
Last Modified: 04 Feb 2019 11:15
URI: http://repository.essex.ac.uk/id/eprint/12579

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