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Article
The Material-weight Illusion Induced by Expectations Alone
Attention, Perception, & Psychophysics (2011)
  • Gavin Buckingham, The University of Western Ontario
  • Nathalie S. Ranger, The University of Western Ontario
  • Melvyn A. Goodale, The University of Western Ontario
Abstract

In the material-weight illusion (MWI), equally weighted objects that appear to be made from different materials are incorrectly perceived as having different weights when they are lifted one after the other. Here, we show that continuous visual experience of the lift is not a prerequisite for this compelling misperception of weight; merely priming the lifters' expectations of heaviness is sufficient for them to experience a robust MWI. Furthermore, these expectations continued to influence the load force used to lift MWI-inducing stimuli trial after trial, supporting the notion that vision plays an important role in the skillful lifting of objects.

Keywords
  • Aluminum,
  • Discrimination (Psychology),
  • Kinetics,
  • Lifting,
  • Optical Illusions,
  • Polystyrenes,
  • Proprioception,
  • Sensory Deprivation,
  • Weight Perception,
  • Wood,
  • Young Adult
Disciplines
Publication Date
January, 2011
Citation Information
Gavin Buckingham, Nathalie S. Ranger and Melvyn A. Goodale. "The Material-weight Illusion Induced by Expectations Alone" Attention, Perception, & Psychophysics Vol. 73 Iss. 1 (2011)
Available at: http://works.bepress.com/gavinbuckingham/3/