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Persistence of visual–tactile enhancement in humans

Taylor-Clarke, Marisa and Kennett, Steffan and Haggard, Patrick (2004) 'Persistence of visual–tactile enhancement in humans.' Neuroscience Letters, 354 (1). pp. 22-25. ISSN 0304-3940

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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
Uncontrolled Keywords: touch; vision; somatosensory; perception; cross modal interaction; human
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 20:56
Last Modified: 15 Jan 2022 00:56

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