Monocular occlusion impairs stereoscopic acuity, but total visual deprivation does not

Herman, John H.; Tauber, Edward S.; Roffwarg, Howard P.

doi:10.3758/bf03203933

Cited by 4 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the potential for "peeking," several investigators have used eye patches (e.g., Bergum & Flamm, 1975;Herman, Tauber, & Roffwarg, 1974;Zubek & Bross, 1972) or opaque pads (procopis & Jameson, 1974) on human subjects. The effectiveness of these devices has been assumed, but results of stringent tests have not been reported.…”

mentioning

confidence: 99%

Assessment of the contact eye cover as an effective method of restricting visual input

Levinson¹,

Sheridan²,

Hottman

et al. 1978

Behavior Research Methods & Instrumentation

View full text Add to dashboard Cite

In the wake of several studies that have cast doubt upon the effectiveness of contact eye covers in restricting vision, we performed a series of five experiments to the end of achieving reversible blinding of the albino rat. The data of Experiment 1 indicated that the contact eye cover can be as effective as a rubber cup in restricting visual input. In Experiment 2, animals that were fitted binocularly with opaque eye covers performed as if blind on a task involving acquisition of pattern discrimination. In Experiment 3, binocular coverage with the opaque eye cover resulted in chance performance across 300 trials of a previously acquired pattern-discrimination habit. In Experiment 4, the base diameter of the eye cover was found to be a critical factor: Performance of a previously acquired brightness discrimination was reduced to chance levels by contact eye covers that approximated 7.0 mm in diameter. In Experiment 5, a smaller eye cover (6·mm diam) had no effect in limiting the visually evoked electrocortical response of the albino rat, while an eye cover of 7.2-mm diam produced a reliable attenuation of the response. The collective results indicate that appropriately fabricated contact eye covers are a viable means of restricting visual input and may justifiably be considered contactoccluders.

show abstract

mentioning

confidence: 99%