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PLoS One. 2012;7(4):e34880. doi: 10.1371/journal.pone.0034880. Epub 2012 Apr 24.

Influence of motor planning on distance perception within the peripersonal space.

Author information

  • 1Department of Psychology, University of Würzburg, Würzburg, Germany. kirsch@psychologie.uni-wuerzburg.de

Abstract

We examined whether movement costs as defined by movement magnitude have an impact on distance perception in near space. In Experiment 1, participants were given a numerical cue regarding the amplitude of a hand movement to be carried out. Before the movement execution, the length of a visual distance had to be judged. These visual distances were judged to be larger, the larger the amplitude of the concurrently prepared hand movement was. In Experiment 2, in which numerical cues were merely memorized without concurrent movement planning, this general increase of distance with cue size was not observed. The results of these experiments indicate that visual perception of near space is specifically affected by the costs of planned hand movements.

PMID:
22545092
PMCID:
PMC3335827
DOI:
10.1371/journal.pone.0034880
[PubMed - indexed for MEDLINE]
Free PMC Article
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