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Induction of monocular stereopsis by altering focus distance: a test of Ames's hypothesis

Research output: Contribution to journalArticle

Abstract

Viewing a real 3-dimensional scene or a stereoscopic image with both eyes generates a vivid phenomenal impression of depth known as stereopsis. Numerous reports have highlighted the fact that an impression of stereopsis can be induced in the absence of binocular disparity. A method claimed by Ames (1925) involved altering accommodative (focus) distance while monocularly viewing a picture. This claim was tested on naïve observers using a method inspired by the observations of Gogel and Ogle on the equidistance tendency. Consistent with Ames’s claim, most observers reported that the focus manipulation induced an impression of stereopsis comparable to that obtained by monocular-aperture viewing.
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Original languageEnglish
Number of pages5
Journali-Perception
Volume7
Issue number2
DOIs
Publication statusPublished - 28 Apr 2016

    Research areas

  • Monocular stereopsis, Depth perception, Focus cues, Equidistance tendency

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