title: Perceptual learning: inverting the size-weight illusion.
abstract: When one lifts two objects of equal weight and appearance but different size, the smaller object usually feels heavier. New results show that this size-weight illusion can be inverted after extensive training with objects in which the natural size-weight relationship is artificially reversed.
authors.affiliation: Max Planck Institute for Biological Cybernetics, Spemannstr. 41, 72076 Tübingen, Germany. marc.ernst@tuebingen.mpg.de
authors.forename: Marc O
authors.initials: MO
authors.lastname: Ernst
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology*; D006801:Humans; D007088:Illusions / Q000502:physiology*; D007858:Learning / Q000502:physiology*; D012858:Size Perception / Q000502:physiology*; D014892:Weight Perception / Q000502:physiology*