September 1991
Volume 32, Issue 10
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Articles  |   September 1991
Discriminating binocular fusion from false fusion.
Author Affiliations
  • R Blake
    Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
  • Y Yang
    Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
  • D Westendorf
    Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
Investigative Ophthalmology & Visual Science September 1991, Vol.32, 2821-2825. doi:
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      R Blake, Y Yang, D Westendorf; Discriminating binocular fusion from false fusion.. Invest. Ophthalmol. Vis. Sci. 1991;32(10):2821-2825.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

In a series of psychophysical experiments, observers discriminated between briefly flashed stimuli (cosine gratings, cosine plaids) that were either identical to the two eyes (dioptic) or differed between the two eyes (dichoptic). Although dioptic and dichoptic binocular stimuli were perceptually similar, they were distinguishable well above chance at exposure durations too brief for the onset of binocular rivalry. Random variations in display contrast did not alter this pattern of results. These results show that the neural events that signal false fusion of dissimilar monocular stimuli are not equivalent to those that underlie binocular fusion of matched monocular views.

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