Responses of primary visual cortical neurons to binocular disparity without depth perception
Article Abstract:
Researchers studied the response of neurons in cortical area V1 to disparity of signals from the retinas, with no depth perception in the disparity. They used anticorrelated random-dot stereograms to study this response. They found that single, disparity-selective neurons responded to the disparity, which shows that single neurons in the V1 area cannot account for the perception of depth in the visual picture. These neurons may have some function in guiding vergence eye movements, and there may be a combination of neuron responses which must occur outside V1.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
Activity changes in early visual cortex reflect monkeys' percepts during binocular rivalry
Article Abstract:
Interaction between binocular neurons during various visual pathways produces binocular rivalry in monkeys. A quantitative analysis of various responses reveal that a distinct level of cells exhibits distinct responses to rivalrous and congruent stimuli. Analysis of perception-associated modulation in visual cortical areas V1, V2 and V4 of monkeys indicates that the V4 visual cortex area exhibits patterns of suppression and dominance of one stimulus.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
What is rivalling during binocular rivalry?
Article Abstract:
The competition for perceptual dominance during binocular rivalry occurs between the two stimuli in the eyes rather than between the eyes themselves. The perceptual changes caused by quickly alternating rival stimuli between the two eyes is similar to the temporal dynamic of stationary objects. There is a single phase of dominance for multiple changes in the stimuli. Thus, binocular rivalry is a general multistable phenomena.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Vergence eye movements in response to binocular disparity without depth perception. A role for stereoscopic depth cues in the rapid visual stabilization of the eyes
- Abstracts: House backs curb on genetic information. Ethical terms set for breast cancer test. Panel softens cancer gene test warning