Misjudgment of direction contributes to curvature in movements towards haptically defined targets

M.C.W. van der Graaff, E. Brenner, J.B.J. Smeets

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    The trajectories of arm movements toward visually defined targets are curved, even if participants try to move in a straight line. A factor contributing to this curvature may be that participants systematically misjudge the direction to the target, and try to achieve a straight path by always moving in the perceived direction of the target. If so, the relation between perception of direction and initial movement direction should not only be present for movements toward visually defined targets, but also when making movements toward haptically defined targets. To test whether this is so, we compared errors in the initial movement direction when moving as straight as possible toward haptically defined targets with errors in a pointer setting task toward the same targets. We found a modest correlation between perception of direction and initial movement direction for movements toward haptically defined targets. The amount of correlation depended on the geometry of the task. © 2013 American Psychological Association.
    Original languageEnglish
    Pages (from-to)802-812
    JournalJournal of Experimental Psychology: Human Perception and Performance
    Volume40
    Issue number2
    Early online date23 Dec 2013
    DOIs
    Publication statusPublished - 2014

    Fingerprint Dive into the research topics of 'Misjudgment of direction contributes to curvature in movements towards haptically defined targets'. Together they form a unique fingerprint.

  • Cite this