Interocular correlation sensitivity and its relationship with stereopsis

Journal of vision

Alexandre Reynaud¹  Robert F. Hess¹ 

[1] McGill Vision Research, Department of Ophthalmology, McGill University, Montreal, Canada

关键词: depth perception;    health disparity;    spatial frequency;    eye;   

DOI  :  10.1167/18.1.11

学科分类：眼科学

来源: Association for Research in Vision and Ophthalmology

【 摘 要 】

Stereoscopic vision uses the disparity between the images received by the two eyes to derive three-dimensional estimates. Here, we were interested in providing a measure of the strength of binocular vision alternate to disparity processing. In particular, we wanted to assess the spatial dependence of sensitivity to detect interocular correlation (IOC). Thus we designed dichoptic stimuli composed of bandpass textures whose IOC is sinusoidally modulated at different correlation frequencies and compared sensitivity to these stimuli to that of analogous stimuli modulated in disparity. We observed that the IOC sensitivity is low pass/band pass and increases with stimulus duration and contrast in a similar way to that of disparity sensitivity. IOC sensitivity is only weakly, though significantly, correlated with disparity sensitivity in the population. It could provide an alternate measure of binocular sensitivity.

【 授权许可】

CC BY