Abstract
A moving object was viewed in delayed, interocularly intermittent exposures of equal duration to the two eyes. A range of period-of-common view was presented in conjunction with two levels of luminance manipulated by optical filter. This approach was used to obviate the “average luminance difference” inherent in the use of unequal exposure durations to the two eyes. Apparent depth displacements of the path of the moving object were obtained for combinations of period-of-common view and luminance not specific to either the Mach-Dvořák or Pulfrich-Fertsch phenomena. Physical delay of interocular intermittence was found to be additive with interocular average luminance difference in the sense that the “dimmed eye” was equivalent to the “lead eye.” Increased apparent depth was obtained for physical delay when overall luminance was decreased. An explanation of the results based on interocular interaction is suggested.
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The data of this study were presented by the first author at the 1976 meeting of the Association for Research in Vision and Ophthalmology, Sarasota, FL, under the title “Binocular Vision—Sequential or Simultaneous?”.
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Harker, G.S., Jones, P.D. Interocular intermittence, retinal illuminance, and apparent depth displacement of a moving object. Perception & Psychophysics 37, 50–58 (1985). https://doi.org/10.3758/BF03207138
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DOI: https://doi.org/10.3758/BF03207138