Tactile interference in visually guided reach-to-grasp movements.

Full Abstract

This study addresses the issue of cross-modal links in goal-directed actions and specifically the influence of non-relevant tactile information on visually guided reach-to-grasp movements. Right-handed participants reached for and grasped with either their left or right hand a visually presented, midsagitally placed target. The target was presented alone, or was accompanied by an unseen, tactile distractor placed in the non-reaching hand. The tactile distractor was either smaller than, the same size as or larger than the target. Significant alterations in kinematic parameterisation were restricted to the grasp component of the movement, and specifically to the reaching right hand. More importantly, the size of the unseen tactile distractors in the left hand altered the grasp parameterisation of the right hand. These findings are discussed in the context of current theories of the control of action by perceptual processes.

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Author information

Author/s: Kritikos, Ada (A); Beresford, Michael (M);

Affiliation: School of Behavioural Science, Department of Psychology, University of Melbourne, Victoria 3010, Australia. a.kritikos(-atsign-)psych.unimelb.edu.au

Journal and publication information

Publication Type: Journal Article

Journal: Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale (Exp Brain Res), published in Germany. (Language: eng)

Reference: 2002-May; vol 144 (issue 1) : pp 1-7

Dates: Created 2002/04/26; Completed 2002/07/12; Revised 2008/02/15;

PMID: 11976754, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

Comments and Corrections

ErratumIn: Exp Brain Res 2002 May;144(1):140.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adolescent
Adult
Attention - physiology
Biomechanics
Brain - physiology
Feedback - physiology
Female
Functional Laterality - physiology
Hand - innervation; physiology

Hand Strength - physiology
Humans
Male
Movement - physiology
Photic Stimulation
Psychomotor Performance - physiology
Reaction Time - physiology
Space Perception - physiology
Touch - physiology

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