Convergent disparity discriminations in narrow-band-filtered random-dot stereograms

Vision ResearchPublished 1 January 1979

John E. W. Mayhew, John P. Frisby

DOI10.1016/0042-6989(79)90122-6

Source URL

Citations28

SJR quartileQ2

SJR score0.63

SNIP0.89

TL;DR

Results provide little support for the notion that low and high spatial frequency channels are specifically related to large and small disparity mechanisms, respectively, at least within the disparity and spatial frequency ranges studied.

Abstract

Two experiments are reported which investigated convergent disparity discriminations in unfiltered and narrow-band-filtered random-dot stereograms. Experiment I found that a given disparity (in the range 2.6′–20.8′) produced a very similar perceived relative depth regardless of the spectral content of the stereogram (in the range 2.5–16.2 c/deg). Eye movements were not controlled. Experiment II measured exposure duration thresholds for disparity discriminations between two random-dot disparate areas. It found that disparity discriminations in the range 0′–13′ were possible in unfiltered stimuli at durations well below the latency for vergence eye movements. Discriminations in the range 0′–8′ were also possible below this latency for spatial frequencies in the range 2.5–16.2 c/deg. These results provide little support for the notion that low and high spatial frequency channels are specifically related to large and small disparity mechanisms, respectively, at least within the disparity and spatial frequency ranges studied.

Keywords

NeuroscienceEngineering

The American Journal of PsychologyFoundations of Cyclopean Perception

2,414 Citations1973Whitman Richards, Béla Julesz

The Journal of the Acoustical Society of AmericaPEST: Efficient Estimates on Probability Functions

1,209 Citations1967M. M. Taylor, C. Douglas Creelman

ScienceBinocular Depth Perception without Familiarity Cues

451 Citations1964Béla Julesz

It was shown that depth can be perceived in the absence of monocular depth and familiarity cues and of all binocular depth cues except for disparity, and it has been demonstrated that the perception of ambiguous depth organizations can be influenced, even subliminally, by a preceding unambiguous stimulus.

Journal of the Optical Society of AmericaAnomalous Stereoscopic Depth Perception*

266 Citations1971Whitman Richards

Normal or complete stereoscopic depth perception is based upon at least two and probably three mechanisms, and these mechanisms may be isolated by studying depth judgments made by stereoanomalous individuals who are unable to discriminate disparities over wide ranges of disparity.

PerceptionIndependent Spatial-Frequency-Tuned Channels in Binocular Fusion and Rivalry

222 Citations1975Béla Julesz, Joan E. Miller

Vision ResearchThe sensory stimulus for disjunctive eye movements

168 Citations1969Gerald Westheimer, Donald E. Mitchell

The limits of the stimulus situations were mapped within which horizontal eye vergence movement are initiated in human observers, and presentation of a visual stimulus in which disparity alone is the cue for vergence is followed by convergence movements only when both disparate stimuli go to one cerebral hemisphere.

Biological CyberneticsInteraction between pools of binocular disparity detectors tuned to different disparities

110 Citations1976Béla Julesz, Jih Jie Chang

A parallel model of stereopsis has been proposed, which extends the spring-coupled dipole model of Julesz (1971), which indicates that the pulling effect was a product of neural interactions, rather than convergence movement of the eyes.

The Journal of PhysiologyDisparity processing of spatial frequencies in man

102 Citations1972Thomas B. Felton, Whitman Richards +1 more

Adaptation to a high‐contrast sine‐wave grating is shown to raise the modulation required to detect a low-contrast grating that has the same or similar spatial frequency as the adapting grating.

NatureRivalrous texture stereograms

68 Citations1976J. E. W. Mayhew, J. P. Frisby

PerceptionContrast Sensitivity Function for Stereopsis

50 Citations1978John P. Frisby, John E. W. Mayhew

It was found that the contrast sensitivity function for stereopsis is similar in shape to that for detection, suggesting that as far as contrast requirements are concerned the mechanisms of global stereopsis do not show a bias in sensitivity to any particular spatial frequency but instead require a constant level of suprathreshold contrast regardless of spatial frequency.