Effects of visual illusions on grasping

Volker H. Franz, Heinrich H. Bülthoff, Heinrich Bulthoff, Karl R. Gegenfurtner

Research output: Contribution to journalArticle

Abstract

In 2 experiments, the Müller-Lyer illusion (F. C. Müller-Lyer, 1889; N = 16) and the parallel-lines illusion (W. Wundt, 1898; N = 26) clearly affected maximum preshape aperture in grasping (both ps < .001). The grasping effects were similar but not perfectly equal to the perceptual effects. Control experiments show that these differences can be attributed to problems in matching the perceptual task and the grasping task. A model is described stating the assumptions that are needed to compare the grasping effects and the perceptual effects of visual illusions. Further studies on the relationship between perception and grasping are reviewed. These studies provide no clear evidence for a dissociation between perception and grasping and therefore do not support the action versus perception hypothesis (A. D. Milner & M. A. Goodale, 1995).

Original languageEnglish
Pages (from-to)1124-1144
Number of pages21
JournalJournal of Experimental Psychology: Human Perception and Performance
Volume27
Issue number5
DOIs
Publication statusPublished - 2001 Oct 1
Externally publishedYes

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Visual Illusion
Illusion
Experiment
Wilhelm Wundt
Dissociation

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Experimental and Cognitive Psychology

Cite this

Effects of visual illusions on grasping. / Franz, Volker H.; Bülthoff, Heinrich H.; Bulthoff, Heinrich; Gegenfurtner, Karl R.

In: Journal of Experimental Psychology: Human Perception and Performance, Vol. 27, No. 5, 01.10.2001, p. 1124-1144.

Research output: Contribution to journalArticle

Franz, Volker H. ; Bülthoff, Heinrich H. ; Bulthoff, Heinrich ; Gegenfurtner, Karl R. / Effects of visual illusions on grasping. In: Journal of Experimental Psychology: Human Perception and Performance. 2001 ; Vol. 27, No. 5. pp. 1124-1144.
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