The use of vergence information in the programming of prehension

M Mon-Williams, H C Dijkerman

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)

Abstract

Human prehension requires accurate information on the properties of an object and on the position of the object relative to the body. In principle, prehension might be more accurate with binocular rather than monocular vision. Previous studies have shown that the kinematics of prehension are altered when one eye is covered. Unfortunately, the source of the useful binocular information cannot be established using this approach. In the current study, we used a perturbation technique to explore whether the human nervous system uses a signal from vergence in prehension. Perturbing vergence caused predictable changes in the kinematics of prehension. Our results thus provide clear evidence that the nervous system uses vergence information in the programming of prehensile movement.

Original languageEnglish
Pages (from-to)578-582
Number of pages5
JournalExperimental Brain Research
Volume128
Publication statusPublished - Oct 1999

Keywords

  • prehension
  • binocular
  • vergence
  • distance perception
  • human
  • VISUAL FORM AGNOSIA
  • KINEMATIC ANALYSIS
  • DIFFERENTIAL PERSPECTIVE
  • BINOCULAR VISION
  • PERCEPTION
  • SIZE
  • MOVEMENTS
  • CUES

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