Advantage of binocularity in the presence of external visual noise.

Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie
Joanna M OttoGuntram Kommerell

Abstract

External visual noise plays a major role in real life, for instance, when a driver tries to identify an object through a snow flurry or through a dirty windshield. The goal of the present investigation was to quantify, under such a condition, the advantage of binocular over monocular vision or, rather, the disadvantage of having only one eye. Eight observers judged the orientation of a Landolt ring (gap always 10 arcmin), partly obscured by noise particles of different sizes (5, 10 or 20 arcmin). The noise particles were presented at a stereo disparity of 62 arcmin, i.e. beyond Panum's fusional area. We compared the percentage of correct responses and the reaction time between binocular and monocular vision. Control conditions: (1) binocular vision with noise particles located immediately in front of the Landolt ring (stereo disparity +/- 0), and (2) absence of noise particles. With regard to the percentage of correct responses, an advantage of binocular over monocular observation occurred only when the obscuring particles were presented at the stereo disparity of 62 arcmin. The advantage depended on the size of the noise particles. The factor was 1.24 for particles of 5 arcmin, 1.49 for 10 arcmin and 1.59 for 20 arcmin. With r...Continue Reading

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Citations

Jun 16, 2012·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Nicole VogesGuntram Kommerell
Feb 3, 2016·Journal of Anatomy·Christophe Soligo, Jeroen B Smaers
Feb 12, 2014·Journal of Pediatric Ophthalmology and Strabismus·Stacy L PinelesJoseph Demer
Dec 13, 2016·Attention, Perception & Psychophysics·Ya-Yue GaoLiang Li
Jul 21, 2021·Annual Review of Vision Science·Jenny C A Read

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