Abstract

We recently presented evidence for a strong correlation between spatial frequency and the range of disparities processed (the so-called “size-disparity correlation”) in stereopsis at contrast threshold in narrowband filtered random-dot stereograms. A determination of stereothreshold with standing disparity with these targets also demonstrates this correlation. Stereothresholds increased away from the fixation plane faster for stimuli of high- than of low center spatial frequency. Stereothresholds could be measured over a greater range of standing disparities with low- than with high frequency targets.

© 1993 Optical Society of America