Absolute stereoscopic thresholds as measured by crossed and uncrossed disparities

Am J Optom Physiol Opt. 1979 Jun;56(6):350-5. doi: 10.1097/00006324-197906000-00003.


Stereoscopic tests of 30 subjects by means of diastereo instruments showed a lower threshold for crossed disparities than for uncrossed disparities. These findings support Richards' conclusion that crossed and uncrossed disparity limits are the result of two different mechanisms.

MeSH terms

  • Depth Perception*
  • Humans
  • Sensory Thresholds
  • Vision Tests / methods*