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Experimental Brain Research

, Volume 127, Issue 2, pp 207–212 | Cite as

Hand deviations toward distractors Evidence for response competition

Evidence for response competition
  • T. N. Welsh
  • Digby Elliott
  • Daniel J. Weeks
Research Article

Abstract 

It has been suggested that, when movements are planned within cluttered environments, competing responses programmed to distracting stimuli are inhibited based on their relation to the action being performed. Further, as a result of this inhibition, the path of the movement made to the target object deviates away from the distractor. In contrast to the object avoidance hypothesis, the results of the present study show that, for aiming movements made in environments in which distractors are present, the path of the movement veers toward the distractor. Moreover, the effects of the distractors on the movement trajectory were independent of the direction of limb movement. These findings suggest that, when a distractor is not a potential physical barrier, a response to the distractor may be activated along with the target response and, owing to temporal advantages, cause a deviation of the movement trajectory toward the distractor.

Key words Attention Distractor interference Path deviation Horse race model Human 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • T. N. Welsh
    • 1
  • Digby Elliott
    • 1
  • Daniel J. Weeks
    • 2
  1. 1.Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada e-mail: welshtn@mcmail.cis.mcmaster.ca Tel.: +1-905-525-9140 Ext 23567, Fax: +1-905-523-6011CA
  2. 2.School of Kinesiology, Simon Fraser University, Burnaby, BC, CanadaCA

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