PMID: 2102993Jan 1, 1990Paper

Effects of direction and magnitude of horizontal disparities on binocular unmasking

Perception
G Moraglia, B Schneider

Abstract

Conditions under which binocular unmasking (BU), as an analogue of binaural unmasking, occurs have been explored. Observers were to detect through a stereoscope a Gabor signal in patches of two-dimensional broadband gaussian noise surrounded by a frame of uniform noise. The right-eye gaussian field was displaced relative to the left eye so that it appeared either in front of or behind the frame. Performance when signal disparity was equal to that of the noise--a condition functionally equivalent to monocular processing--was compared to that obtained when signal disparity was zero--a case in which BU should occur. Enhanced signal detectability of up to 12 dB and of nearly constant magnitude was observed in the latter condition when uncrossed disparities of up to 67.60 min visual angle and display durations of 1 s were employed. Signal detectability declined appreciably with increasing disparity (both crossed and uncrossed) when display duration was reduced to 90 ms, thus preventing the occurrence of compensatory vergence eye movements. It is suggested that BU effects may result from a process of linear summation of monocular inputs.

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Citations

Sep 1, 1993·Vision Research·A M DerringtonG B Henning
Mar 1, 1993·Vision Research·A M Derrington, G B Henning
Apr 1, 1994·Vision Research·S P McKeeG E Legge
Dec 1, 1992·Perception & Psychophysics·B Schneider, G Moraglia
May 20, 1999·Perception & Psychophysics·B A SchneiderF Speranza
Mar 15, 2001·Vision Research·J M Harris, A Willis
Jun 9, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P Cammack, J M Harris
Jan 1, 1994·Perception·B Schneider, G Moraglia
Feb 28, 2020·Scientific Reports·D H BakerR E Millman
Dec 13, 2016·Attention, Perception & Psychophysics·Ya-Yue GaoLiang Li

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