On the relationship between interocular suppression in the primary visual cortex and binocular rivalry
David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
Brain and Mind 2 (1):39-54 (2001)
Both classical psychophysical work and recentfunctional imaging studies have suggested acritical role for the primary visual cortex(V1) in resolving the perceptual ambiguitiesexperienced during binocular rivalry. Here weexamine, by means of single-cell recordings andoptical imaging of intrinsic signals, thespatial characteristics of suppression elicitedby rival stimuli in cat V1. We find that the interocular suppression field of V1 neuronsis centred on the same position in space and isslightly larger (by a factor of 1.3) than theminimum response field, measured through thesame eye. Suppression is always strongest at asingle position corresponding very closely tothe centre of the classical receptive field,and reduces responses through the other eye byup to 90% but typically around 40%. Thespatial pattern of interocular suppression, asrevealed by optical imaging, closely matchesthe cortical representation of the stimulus,which is being suppressed, both in terms of itsorientation and the eye of origin. Theseresults indicate that interocular suppressionis directly related to the functionalarchitecture of V1; it is probably caused bydirect inhibitory interactions betweenneighbouring cortical columns of oppositeocular dominance.
|Keywords||No keywords specified (fix it)|
|Categories||categorize this paper)|
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library|
References found in this work BETA
No references found.
Citations of this work BETA
No citations found.
Similar books and articles
Fumihiko Taya & Ken Mogi (2005). Spatio-Temporal Dynamics of the Visual System Revealed in Binocular Rivalry. Neuroscience Letters 381 (1-2):63-68.
Frank Tong (2001). Competing Theories of Binocular Rivalry: A Possible Resolution. [REVIEW] Brain and Mind 2 (1):55-83.
Naotsugu Tsuchiya & Christof Koch (2005). Continuous Flash Suppression Reduces Negative Afterimages. Nature Neuroscience 8 (8):1096-1101.
Stephen L. Macknik & Susana Martinez-Conde (2004). Dichoptic Visual Masking Reveals That Early Binocular Neurons Exhibit Weak Interocular Suppression: Implications for Binocular Vision and Visual Awareness. Journal of Cognitive Neuroscience 16 (6):1049-1059.
Ilona Kovacs, Thomas Papathomas, Ming Yang & Akos Feher (1997). When the Brain Changes its Mind: Interocular Grouping During Binocular Rivalry. Investigative Ophthalmology and Visual Science 38 (4):2249-2249.
R. R. Blake (2001). A Primer on Binocular Rivalry, Including Current Controversies. Brain and Mind 2 (1):5-38.
Pascal Fries, Pieter R. Roelfsema, Andreas K. Engel & Wolf Singer (1997). Synchronization of Oscillatory Responses in Visual Cortex Correlates with Perception in Interocular Rivalry. Proceedings of the National Academy of Sciences Usa 94:12699-12704.
John D. Pettigrew (2001). Searching for the Switch: Neural Bases for Perceptual Rivalry Alternations. [REVIEW] Brain and Mind 2 (1):85-118.
Added to index2009-01-28
Total downloads6 ( #302,951 of 1,699,833 )
Recent downloads (6 months)2 ( #269,935 of 1,699,833 )
How can I increase my downloads?