Optics and neural adaptation jointly limit human stereovision.
| Autor: | Ng CJ; Flaum Eye Institute, University of Rochester, Rochester, NY 14642.; Center for Visual Science, University of Rochester, Rochester, NY 14627., Blake R; Department of Psychology, Vanderbilt University, Nashville, TN 37203., Banks MS; School of Optometry, University of California, Berkeley, CA 94720; martybanks@berkeley.edu gyoon@ur.rochester.edu., Tadin D; Flaum Eye Institute, University of Rochester, Rochester, NY 14642.; Center for Visual Science, University of Rochester, Rochester, NY 14627.; Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY 14627., Yoon G; Flaum Eye Institute, University of Rochester, Rochester, NY 14642; martybanks@berkeley.edu gyoon@ur.rochester.edu.; Center for Visual Science, University of Rochester, Rochester, NY 14627. |
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| Jazyk: | angličtina |
| Zdroj: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2021 Jun 08; Vol. 118 (23). |
| DOI: | 10.1073/pnas.2100126118 |
| Abstrakt: | Stereovision is the ability to perceive fine depth variations from small differences in the two eyes' images. Using adaptive optics, we show that even minute optical aberrations that are not clinically correctable, and go unnoticed in everyday vision, can affect stereo acuity. Hence, the human binocular system is capable of using fine details that are not experienced in everyday vision. Interestingly, stereo acuity varied considerably across individuals even when they were provided identical perfect optics. We also found that individuals' stereo acuity is better when viewing with their habitual optics rather than someone else's (better) optics. Together, these findings suggest that the visual system compensates for habitual optical aberrations through neural adaptation and thereby optimizes stereovision uniquely for each individual. Thus, stereovision is limited by small optical aberrations and by neural adaptation to one's own optics. Competing Interests: The authors declare no competing interest. |
| Databáze: | MEDLINE |
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