Perception-action and the Müller-Lyer illusion: Amplitude or endpoint bias?

Cheryl M. Glazebrook, Victoria P. Dhillon, Katherine M. Keetch, James Lyons, Eric Amazeen, Daniel J. Weeks, Digby Elliott

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Over the past decade there has been a great deal of controversy regarding the relative impact of visual illusions on cognitive judgments and the control of goal-directed action. We report the results of two experiments indicating that perceptual biases associated with the Müller-Lyer illusion involve a misjudgment of amplitude/extent while aiming biases involve error in the specification of a movement endpoint. This dissociation of perception and action is consistent with some aspects of Milner and Goodale's two visual system model, but not others.

Original languageEnglish (US)
Pages (from-to)71-78
Number of pages8
JournalExperimental Brain Research
Issue number1
StatePublished - Jan 2005


  • Dorsal-ventral
  • Illusion
  • Müller-Lyer
  • Perception-action

ASJC Scopus subject areas

  • General Neuroscience


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