Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/99155
Title: The influence of background topography on stereo-acuity
Author: Torrents, A.
Cardona, G.
Aznar Casanova, José Antonio
Keywords: Percepció visual
Visió binocular
Visual perception
Binocular vision
Issue Date: 20-Dec-2011
Publisher: Universitat de Barcelona
Abstract: Human depth perception can be strongly affected by the characteristics of the environment. Previous studies have assessed visual acuity in the frontoparallel plane but little is known about the effect of background topography on stereoacuity. In the present experiment, based on alignment tasks, we analyzed how stimulus orientation and 3D background configuration influence stereoscopic vision. An experiment was designed to investigate the influence of stimulus orientation (0, 45 and 90 degrees) and background configuration (flat, black, concave and convex) on precision in 3D visual alignment tasks in a virtual environment. Background was found to result in an underestimation of stereoacuity, with the highest and lowest precision scores in comparison judgment tasks corresponding to convex and concave backgrounds, respectively. In addition, a significant orientation by background interaction was discovered. We conclude that background local depth cues are integrated with our target stimuli to contribute to depth perception
Note: Reproducció del document publicat a: http://revistes.ub.edu/index.php/Anuario-psicologia/article/download/8234/10152
It is part of: Anuario de Psicología, 2011, vol. 41, num. 1-3, p. 9-20
URI: http://hdl.handle.net/2445/99155
ISSN: 0066-5126
Appears in Collections:Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)

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