This study assessed perceptual learning effects with complex random-dot stereograms. Observers were shown the same complex anaglyph five times daily, for four consecutive days, and latencies to achieve stereopsis were recorded. Two-factor repeated-measures analysis of variance yielded significant effects of days, trials, and days-by-trials interaction. Latency to achieve stereopsis decreases over trials each day, but this decrease is not completely transferred across days. It is concluded that observers must, in some sense, “re-learn” how to perceive complex stereograms if subsequent presentations occur over more than one day.
Get full access to this article
View all access options for this article.
References
1.
FrisbyJ. P.ClatworthyJ. L.Learning to see complex random dot stereograms. Perception, 1975, 4, 173–178.
2.
GoryoK.KikuchiT.Disparity and training in stereopsis. Japanese Psychological Research, 1971, 13, 148–152.
3.
JuleszB.Binocular depth perception without familiarity cues. Science, 1964, 145, 356–362.
4.
JuleszB.Cooperative phenomena in binocular depth perception. American Scientist, 1974, 62, 32–43.
MacCrackenP. J.HayesW. N.Some effects of experience on stereopsis. Paper presented at the meeting of the Midwestern Psychological Association, Chicago, May 1975.
7.
RamachandranV. S.BraddickO.Orientation-specific learning in stereopsis. Perception, 1973, 2, 371–376.
