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

Dhanraj Vishwanath

doi:10.1177/2041669516643236

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

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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.

Original language	English
Number of pages	5
Journal	i-Perception
Volume	7
Issue number	2
DOIs	https://doi.org/10.1177/2041669516643236
Publication status	Published - 28 Apr 2016

Keywords

Monocular stereopsis
Depth perception
Focus cues
Equidistance tendency

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10.1177/2041669516643236Licence: CC BY

Vishwanath_2016_iPerception_MonocularStereopsis_CC
© The Author(s) 2016. This is an Open Access article. This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed.
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Cite this

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

Abstract

Keywords

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