Sensory Systems | Cognitive Neuroscience | Motor Systems | Cerebrovascular Disease
Preservation of size constancy for action, but not perception, in a patient with bilateral occipital lesions
Irene Sperandio*, Robert L Whitwell, Philippe A Chouinard, Melvyn A Goodale
*Corresponding author: Irene Sperandio
Department of Psychology, University of Western Ontario, London, Canada
F1000Posters 2012, 3: 799 (poster) [English]
Poster [2.13 MB]
Vision Sciences Society Annual Meeting 2012, 11 - 16 May 2012, 43.418
Size constancy is a scaling mechanism that permits our visual system to treat an object of a given size as remaining the same size under different viewing conditions. The neural mechanisms that underlie size constancy for perception and action are poorly understood. We therefore carried out a size constancy study on patient M.C., who has large bilateral occipital lesions that include V1.
Our results strongly suggest that the neural mechanisms that underlie size constancy for perception and action are distinct, and lend further support to the hypothesis that V1 plays an important role in conscious visual perception.
No relevant competing interests disclosed.
OMRI , R0124A15
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