Sensory Systems | Cognitive Neuroscience | Strabismus & Pediatric Ophthalmology
The spatial limits of recovered stereopsis in strabismic/amblyopic adults
Jian Ding*, Dennis Levi
*Corresponding author: Jian Ding
School of Optometry, University of California, Berkeley, CA, USA
F1000Posters 2011, 2: 1640 (poster) [English]
Poster [589.05 KB]
European Conference on Visual Perception 2011, 28 Aug - 1 Sep 2011, 64
European Conference on Visual Perception
Recently, we reported the recovery of stereopsis through perceptual learning in individuals who were stereoblind or stereoanomalous (1). However, the nature of the recovered stereopsis is still unclear. Here, we developed a procedure using bandpass noise stimuli to study the spatial limits of the recovered stereopsis.
We conclude that the stereopsis recovered following perceptual learning is more limited than in the normal visual system, in that it operates over a more restricted range of spatial frequencies and perceived disparities. The limits are mainly due to higher stereo thresholds, especially at a higher spatial frequency, in recovered stereopsis.
We plan to further study these limits by tracking binocular eye positions while observing stereo stimuli.
No relevant competing interests disclosed.
National Institutes of Health (NIH), R01EY01728
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