Abstract
Binocular forced-choice detection performance was measured in three stereoblind observers and four observers with normal stereopsis. Detection rates of normal observers were greater than expected from probability summation, while those of the stereoblind observers were near or at a level expected from probability. It is concluded that binocular summation is reduced or absent in stereoblind persons.
Article PDF
Similar content being viewed by others
References
Banks, M. S., Aslin, R. N., &Letsin, R. D. Critical period for the development of human binocular vision.Science, 1975,190, 673–677.
Blake, R., &Fox, R. The psychophysical inquiry into binocular summation.Perception & Psychophysics, 1973,14, 161–185.
Blake, R., &Hirsch, H. V. B. Deficits in binocular depth perception in cats after alternating monocular deprivation.Science, 1975,190, 1114–1116.
Fox, R., &Blake, R.R. Stereoscopic vision in the cat.Nature, New Biology, London, 1971,233, No. 5314, 55–56.
Green, D.M., &Swets, J. A.Signal detection theory and psychophysics. New York: Wiley, 1966.
Hohman, A., &Creutzfeldt, O. D. Squint and the development of binocularity in humans.Nature, London, 1975,254, 613–614.
Hubel, D. H., &Wiesel, T. N. Binocular interaction in striate cortex of kittens reared with artificial squint.Journal of Neurophysiology, 1965,28, 1041–1059.
Lema, S. A., &Blake, R. Binocular summation in normal and stereoblind humans.Vision Research, 1977,17, 691–695.
Matin, L. Binocular summation at the absolute threshold for peripheral vision.Journal of the Optical Society of America, 1962,52, 1276–1286.
Mitchell, D. E., Reardon, J., &Muir, D. Interocular transfer of the motion aftereffect in normal and stereoblind observers.Experimental Brain Research, 1975,22, 163–173.
Mitchell, D. E., &Ware, C. Interocular transfer of a visual aftereffect in normal and stereoblind humans.Journal of Physiology, London, 1974,236, 707–721.
Movshon, J. A., Chambers, B. E. I., &Blakemore, C. Interocular transfer in normal humans, and those who lack stereopsis.Perception, 1972,1, 483–490.
Swets, J. A.Signal detection and recognition by human observers. New York: Wiley, 1964.
Thorn, F., &Boynton, R. M. Human binocular summation at absolute threshold.Vision Research, 1974,14, 445–458.
Wade, N. J. On interocular transfer of the movement after-effect in individuals with and without normal binocular vision.Perception, 1976,5, 113–118.
Westendorf, D. H., Blake, R. R., &Fox, R. Binocular summation of equal-energy flashes of unequal duration.Perception & Psychophysics, 1972,12, 445–448.
Westendorf, D. H., &Fox, R. Binocular detection of positive and negative flashes.Perception & Psychophysics, 1974,15, 61–65.
Westendorf, D. H., &Fox, R. Binocular detection of vertical and horizontal line segments.Vision Research, 1975,15, 471–476.
Westendorf, D. H., &Fox, R. Binocular detection of disparate light flashes.Vision Research, 1977,17, 697–702.
Williams, R. The effect of strabismus on dichoptic summation of form information.Vision Research, 1974,14, 307–309.
Author information
Authors and Affiliations
Additional information
Support for this research was provided in part by a grant from the University of Arkansas Research Reserve Fund and by an NIMH research grant (MH28063-01).
Rights and permissions
About this article
Cite this article
Westendorf, D.H., Langston, A., Chambers, D. et al. Binocular detection by normal and stereoblind observers. Perception & Psychophysics 24, 209–214 (1978). https://doi.org/10.3758/BF03206090
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.3758/BF03206090