Graduate studies at Western
Cognitive Science 35 (6):1076-1104 (2011)
|Abstract||David Milner and Melvyn Goodale’s dissociation hypothesis is commonly taken to state that there are two functionally specialized cortical streams of visual processing originating in striate (V1) cortex: a dorsal, action-related “unconscious” stream and a ventral, perception-related “conscious” stream. As Milner and Goodale acknowledge, findings from blindsight studies suggest a more sophisticated picture that replaces the distinction between unconscious vision for action and conscious vision for perception with a tripartite division between unconscious vision for action, conscious vision for perception, and unconscious vision for perception. The combination excluded by the tripartite division is the possibility of conscious vision for action. But are there good grounds for concluding that there is no conscious vision for action? There is now overwhelming evidence that illusions and perceived size can have a significant effect on action (Bruno & Franz, 2009; Dassonville & Bala, 2004; Franz & Gegenfurtner, 2008; McIntosh & Lashley, 2008). There is also suggestive evidence that any sophisticated visual behavior requires collaboration between the two visual streams at every stage of the process (Schenk & McIntosh, 2010). I nonetheless want to make a case for the tripartite division between unconscious vision for action, conscious vision for perception, and unconscious vision for perception. My aim here is not to refute the evidence showing that conscious vision can affect action but rather to argue (a) that we cannot gain cognitive access to action-guiding dorsal stream representations, and (b) that these representations do not correlate with phenomenal consciousness. This vindicates the semi-conservative view that the dissociation hypothesis is best understood as a tripartite division|
|Keywords||Blindsight Dorsal stream Unconscious vision Consciousness Ventral stream Perception Enactive theory of perception Vision for perception Shape processing Vision for action Color processing|
|Categories||categorize this paper)|
|Through your library||Configure|
Similar books and articles
Berit Brogaard (2011). Are There Unconscious Perceptual Processes? Consciousness and Cognition 20:449-63.
Michael Madary (2011). The Dorsal Stream and the Visual Horizon. Phenomenology and the Cognitive Sciences 10 (4):423-438.
Tony Ro (2006). The Cognitive Neuroscience of Unconscious and Conscious Vision. In Haluk Ögmen & Bruno G. Breitmeyer (eds.), The First Half Second: The Microgenesis and Temporal Dynamics of Unconscious and Conscious Visual Processes. Mit Press.
Bruno G. Breitmeyer & Petra Stoerig (2006). Neural Correlates and Levels of Conscious and Unconscious Vision. In Haluk Ögmen & Bruno G. Breitmeyer (eds.), The First Half Second: The Microgenesis and Temporal Dynamics of Unconscious and Conscious Visual Processes. Mit Press.
Bruno G. Breitmeyer & Haluk Ögmen (2006). Visual Masking: Time Slices Through Conscious and Unconscious Vision (2nd Ed.). Oxford University Press.
Berit Brogaard (2012). Vision for Action and the Contents of Perception. Journal of Philosophy 109 (10):569-587.
David A. Westwood & Melvyn A. Goodale (2001). Perception and Action Planning: Getting It Together. Behavioral and Brain Sciences 24 (5):907-908.
Nivedita Gangopadhyay, Michael Madary & Finn Spicer (eds.) (2010). Perception, Action, and Consciousness: Sensorimotor Dynamics and Two Visual Systems. Oxford University Press, Usa.
Melvyn A. Goodale (2007). Duplex Vision: Separate Cortical Pathways for Conscious Perception and the Control of Action. In Max Velmans & Susan Schneider (eds.), The Blackwell Companion to Consciousness. Blackwell.
Melvyn A. Goodale & A. David Milner (2004/2005). Sight Unseen: An Exploration of Conscious and Unconscious Vision. Oxford University Press.
Robert Briscoe (2009). Egocentric Spatial Representation in Action and Perception. Philosophy and Phenomenological Research 79 (2):423 - 460.
Bruno G. Breitmeyer & Haluk Ögmen (2006). Visual Masking Reveals Differences Between the Nonconscious and Conscious Processing of Form and Surface Attributes. In Haluk Ögmen & Bruno G. Breitmeyer (eds.), The First Half Second: The Microgenesis and Temporal Dynamics of Unconscious and Conscious Visual Processes. Mit Press.
James Danckert & Melvyn A. Goodale (2000). Blindsight: A Conscious Route to Unconscious Vision. Current Biology 10 (1):31-43.
Added to index2011-03-08
Total downloads79 ( #12,257 of 739,401 )
Recent downloads (6 months)5 ( #17,167 of 739,401 )
How can I increase my downloads?