It is all me

The effect of viewpoint on visual-vestibular recalibration

Judith Schomaker, Joachim Tesch, Heinrich Bulthoff, Jean Pierre Bresciani

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Participants performed a visual-vestibular motor recalibration task in virtual reality. The task consisted of keeping the extended arm and hand stable in space during a whole-body rotation induced by a robotic wheelchair. Performance was first quantified in a pre-test in which no visual feedback was available during the rotation. During the subsequent adaptation phase, optical flow resulting from body rotation was provided. This visual feedback was manipulated to create the illusion of a smaller rotational movement than actually occurred, hereby altering the visual-vestibular mapping. The effects of the adaptation phase on hand stabilization performance were measured during a post-test that was identical to the pre-test. Three different groups of subjects were exposed to different perspectives on the visual scene, i.e., first-person, top view, or mirror view. Sensorimotor adaptation occurred for all three viewpoint conditions, performance in the posttest session showing a marked under-compensation relative to the pre-test performance. In other words, all viewpoints gave rise to a remapping between vestibular input and the motor output required to stabilize the arm. Furthermore, the first-person and mirror view adaptation induced a significant decrease in variability of the stabilization performance. Such variability reduction was not observed for the top view adaptation. These results suggest that even if all three viewpoints can evoke substantial adaptation aftereffects, the more naturalistic first-person view and the richer mirror view should be preferred when reducing motor variability constitutes an important issue.

Original languageEnglish
Pages (from-to)245-256
Number of pages12
JournalExperimental Brain Research
Volume213
Issue number2-3
DOIs
Publication statusPublished - 2011 Sep 1

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Sensory Feedback
Arm
Hand
Wheelchairs
Robotics

Keywords

  • Adaptation
  • Motor control
  • Sensorimotor learning
  • Vestibular
  • Visual

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

It is all me : The effect of viewpoint on visual-vestibular recalibration. / Schomaker, Judith; Tesch, Joachim; Bulthoff, Heinrich; Bresciani, Jean Pierre.

In: Experimental Brain Research, Vol. 213, No. 2-3, 01.09.2011, p. 245-256.

Research output: Contribution to journalArticle

Schomaker, Judith ; Tesch, Joachim ; Bulthoff, Heinrich ; Bresciani, Jean Pierre. / It is all me : The effect of viewpoint on visual-vestibular recalibration. In: Experimental Brain Research. 2011 ; Vol. 213, No. 2-3. pp. 245-256.
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