Vergence eye movements in response to binocular disparity without depth perception
Article Abstract:
Researchers examined vergence eye movement responses to binocular disparity with no depth perception. Earlier research showed how corrective eye movements occur when binocular misalignments are imposed in steps on large random-dot patterns at ultrashort latencies. The same technique applied to dense anticorrelated patterns, in which black dots for one eye match white dots for the other eye, produces vergence responses which are similar, but in the opposite direction. This indicates that vergence eye movements are due to locally matched binocular features, and occur due to cortical processing at an earlier stage than that causing depth perception.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Radial optic flow induces vergence eye movements with ultra-short latencies
Article Abstract:
Research demonstrates that horizontal vergence eye movements in humans can be elicited by radial optic flow with latencies of about 80 ms. The vergence angle decreases as a result of centripetal flow, while the angle increases due to centrifugal flow. A restricted view of the flow pattern to one eye's temporal hemifield still produces vergence eye movements, suggesting that the responses are due to a process whereby the radial flow pattern is sensed. Flow-induced vergence may belong to a rapid ocular reflex family.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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A role for stereoscopic depth cues in the rapid visual stabilization of the eyes
Article Abstract:
Vision of primates are aided by their built-in tracking systems which aid in stabilizing the eyes against its surroundings. The image motion on the retina is influenced by the three-dimensional structure of the environment as the observer travels through it. It is claimed that the most immediate tracking responses are derived only from moving objects within the nearest plane of fixation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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