Visual spatial constancy and modularity: Does intention penetrate vision?
- Wayne WuAffiliated withCenter for the Neural Basis of Cognition, Carnegie Mellon University Email author
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Is vision informationally encapsulated from cognition or is it cognitively penetrated? I shall argue that intentions penetrate vision in the experience of visual spatial constancy: the world appears to be spatially stable despite our frequent eye movements. I explicate the nature of this experience and critically examine and extend current neurobiological accounts of spatial constancy, emphasizing the central role of motor signals in computing such constancy. I then provide a stringent condition for failure of informational encapsulation that emphasizes a computational condition for cognitive penetration: cognition must serve as an informational resource for visual computation. This requires proposals regarding semantic information transfer, a crucial issue in any model of informational encapsulation. I then argue that intention provides an informational resource for computation of visual spatial constancy. Hence, intention penetrates vision.
KeywordsConsciousness Vision Corollary discharge Modularity Informational encapsulation Spatial representation
- Visual spatial constancy and modularity: Does intention penetrate vision?
Volume 165, Issue 2 , pp 647-669
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- Corollary discharge
- Informational encapsulation
- Spatial representation
- Wayne Wu (1)
- Author Affiliations
- 1. Center for the Neural Basis of Cognition, Carnegie Mellon University, 4400 Fifth Avenue, Suite 115, Pittsburgh, PA, 15213, USA