Location but not amount of stimulus occlusion influences the stability of visuomotor coordination

Alen Hajnal, Michael J Richardson, Steven J Harrison, R C Schmidt

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Abstract

The current study examined whether the amount and location of available movement information influenced the stability of visuomotor coordination. Participants coordinated a handheld pendulum with an oscillating visual stimulus in an inphase and antiphase manner. The effects of occluding different amounts of phase at different phase locations were examined. Occluding the 0°/180° phase locations (end-points) significantly increased the variability of the visuomotor coordination. The amount of occlusion had little or no affect on the stability of the coordination. We concluded that the end-points of a visual rhythm are privileged and provide access to movement information that ensures stable coordination. The results are discussed with respect to the proposal of Bingham (Ecol Psychol 16:45–43, 2004) and Wilson et al. (Exp Brain Res 165:351–361, 2005) that the relevant information for rhythmic visual coordination is relative direction information.
Original languageEnglish
Pages (from-to)351-355
Number of pages5
JournalExperimental brain research
Volume221
Issue number3
DOIs
Publication statusPublished - 2009
Externally publishedYes

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Keywords

  • coordination
  • coupling
  • perception

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