David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
Synthese 83 (1):49-91 (1990)
In this paper we focus on the modularity of visual functions in the human visual cortex, that is, the specific problems that the visual system must solve in order to achieve recognition of objects and visual space. The computational theory of early visual functions is briefly reviewed and is then used as a basis for suggesting computational constraints on the higher-level visual computations. The remainder of the paper presents neurological evidence for the existence of two visual systems in man, one specialized for spatial vision and the other for object vision. We show further clinical evidence for the computational hypothesis that these two systems consist of several visual modules, some of which can be isolated on the basis of specific visual deficts which occur after lesions to selected areas in the visually responsive brain. We will provide examples of visual modules which solve information processing tasks that are mediated by specific anatomic areas. We will show that the clinical data from behavioral studies of monkeys (Ungerleider and Mishkin 1984) supports the distinction between two visual systems in monkeys, the 'what' system, involved in object vision, and the 'where' system, involved in spatial vision
|Keywords||Modularity Perception Science System Visual|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Victor A. F. Lamme (2006). Zap! Magnetic Tricks on Conscious and Unconscious Vision. Trends in Cognitive Sciences 10 (5):193-195.
Mohan Matthen (2007). Defining Vision: What Homology Thinking Contributes. Biology and Philosophy 22 (5):675-689.
Jeffrey S. Bowers (1999). The Visual Categories for Letters and Words Reside Outside Any Informationally Encapsulated Perceptual System. Behavioral and Brain Sciences 22 (3):368-369.
Antti Revonsuo (1998). Visual Perception and Subjective Visual Awareness. Behavioral and Brain Sciences 21 (6):769-770.
Andrew R. Whatham, Patrik Vuilleumier, Theodor Landis & Avinoam B. Safran (2003). Visual Consciousness in Health and Disease. Neurologic Clinics 21 (3):647-686.
Joel Norman (2001). Two Visual Systems and Two Theories of Perception: An Attempt to Reconcile the Constructivist and Ecological Approaches. Behavioral and Brain Sciences 25 (1):73-96.
Jean Bullier (1999). Visual Perception is Too Fast to Be Impenetrable to Cognition. Behavioral and Brain Sciences 22 (3):370-370.
Paul T. Sowden (1999). Expert Perceivers and Perceptual Learning. Behavioral and Brain Sciences 22 (3):396-397.
Added to index2009-01-28
Total downloads15 ( #88,744 of 1,005,126 )
Recent downloads (6 months)1 ( #64,743 of 1,005,126 )
How can I increase my downloads?