Binocular Rivalry

Binocular rivalry is a phenomenon of visual perception in which perception alternates between different images presented to each eye.

When one image is presented to one eye and a very different image is presented to the other (also known as dichoptic presentation), instead of the two images being seen superimposed, one image is seen for a few moments, then the other, then the first, and so on, randomly for as long as one cares to look. For example, if a set of vertical lines is presented to one eye, and a set of horizontal lines to the same region of the retina of the other, sometimes the vertical lines are seen with no trace of the horizontal lines, and sometimes the horizontal lines are seen with no trace of the vertical lines.

At transitions, brief, unstable composites of the two images may be seen; these are often organized. For example, the vertical lines may appear one at a time to obscure the horizontal lines from the left or from the right, or the horizontal lines may appear one at a time to obscure the vertical lines from the top or from the bottom. Binocular rivalry occurs between any stimuli that differ sufficiently, including simple stimuli like lines of different orientation and complex stimuli like different alphabetic letters or different pictures such as of a face and of a house.

Very small differences between images, however, might yield singleness of vision and stereopsis. In recent years neuroscientists have used neuroimaging techniques and single-cell recording techniques to identify neural events responsible for the perceptual dominance of a given image and for the perceptual alternations.

Read more about Binocular RivalryTypes of Binocular Rivalry, Why Binocular Rivalry Is Interesting, History of Binocular Rivalry, Early Theories of Binocular Rivalry, Empirical Studies of Binocular Rivalry: B. B. Breese (1899, 1909), Other Senses

Other articles related to "binocular rivalry, rivalry":

Flash Suppression - Relationship With Binocular Rivalry
... When this conflict is sustained without any abrupt events, binocular rivalry occurs ... In both flash suppression and binocular rivalry, perceptual conflict between the two eyes is required for the perceptual effect ... experienced, rather than flash suppression or binocular rivalry ...
Binocular Vision - Binocular Rivalry
... When very different images are shown to the same retinal regions of the two eyes, perception settles on one for a few moments, then the other, then the first, and so on, for as long as one cares to look ... This alternation of perception between the images of the two eyes is called binocular rivalry ...
William James Prize - Past Recipients
... bias which of two subsequent competing stimuli reach awareness during binocular rivalry ... activity in early visual cortex during binocular rivalry" by Sang-Hun Lee as the winning nomination ... linkage in humans between the dynamics of perceptual traveling waves experienced during binocular rivalry and the neural events in primary visual cortex (i.e ...
Neural Correlates Of Consciousness - The Neuronal Basis of Perception
... Psychologists have perfected a number of techniques – masking, binocular rivalry, continuous flash suppression, motion induced blindness, change blindness, inattentional ... A perceptual illusion that can be precisely controlled is binocular rivalry ... areas in awake macaque monkeys performing a binocular rivalry task ...
Binocular Rivalry - Other Senses
... Auditory and olfactory forms of perceptual rivalry can occur when there are conflicting and so rivaling inputs into the two ears or two nostrils ...

Famous quotes containing the word rivalry:

    It seems to me that we have to draw the line in sibling rivalry whenever rivalry goes out of bounds into destructive behavior of a physical or verbal kind. The principle needs to be this: Whatever the reasons for your feelings you will have to find civilized solutions.
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