Bi-stable depth ordering of superimposed moving gratings

Rubén Moreno-Bote, Asya Shpiro, John Rinzel, Nava Rubin

Research output: Contribution to journalArticle

Abstract

Ambiguous stimuli with two district interpretations give rise to perceptual alternations between them. During prolonged viewing of transparently moving gratings, observers report periods of perceiving one grating in front of the other, alternating with periods of the reverse depth ordering. We measured the percepts' dominance times to study the effect of depth cues (wavelength, duty cycle, and speed) on the perceived depth ordering. The grating with shorter wavelength, lower duty cycle, or higher speed was perceived as being behind the other for a fraction of time larger than one half. The fraction of time spent perceiving each grating as behind changed gradually as a function of the parameters. The fraction of dominance depended on the ratio between the gratings' wavelengths, not on their absolute sizes. The wavelength ratio had a stronger effect on perceived depth than that of duty cycle or speed and could override stereoscopic disparity cues. Similar results were obtained with superimposed moving surfaces of random dots. The findings are interpreted in terms of their relation to statistical properties of natural surfaces and provide evidence that the fraction of dominance of each percept represents the likelihood that it corresponds to the true interpretation of the underlying scene.

Original languageEnglish (US)
Article number20
JournalJournal of vision
Volume8
Issue number7
DOIs
StatePublished - Jul 31 2008

Fingerprint

Cues
Surface Properties

Keywords

  • Bi-stability
  • Depth
  • Grating
  • Plaid

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Bi-stable depth ordering of superimposed moving gratings. / Moreno-Bote, Rubén; Shpiro, Asya; Rinzel, John; Rubin, Nava.

In: Journal of vision, Vol. 8, No. 7, 20, 31.07.2008.

Research output: Contribution to journalArticle

Moreno-Bote, Rubén ; Shpiro, Asya ; Rinzel, John ; Rubin, Nava. / Bi-stable depth ordering of superimposed moving gratings. In: Journal of vision. 2008 ; Vol. 8, No. 7.
@article{9a1445015aa74f848494f44ae47c0a04,
title = "Bi-stable depth ordering of superimposed moving gratings",
abstract = "Ambiguous stimuli with two district interpretations give rise to perceptual alternations between them. During prolonged viewing of transparently moving gratings, observers report periods of perceiving one grating in front of the other, alternating with periods of the reverse depth ordering. We measured the percepts' dominance times to study the effect of depth cues (wavelength, duty cycle, and speed) on the perceived depth ordering. The grating with shorter wavelength, lower duty cycle, or higher speed was perceived as being behind the other for a fraction of time larger than one half. The fraction of time spent perceiving each grating as behind changed gradually as a function of the parameters. The fraction of dominance depended on the ratio between the gratings' wavelengths, not on their absolute sizes. The wavelength ratio had a stronger effect on perceived depth than that of duty cycle or speed and could override stereoscopic disparity cues. Similar results were obtained with superimposed moving surfaces of random dots. The findings are interpreted in terms of their relation to statistical properties of natural surfaces and provide evidence that the fraction of dominance of each percept represents the likelihood that it corresponds to the true interpretation of the underlying scene.",
keywords = "Bi-stability, Depth, Grating, Plaid",
author = "Rub{\'e}n Moreno-Bote and Asya Shpiro and John Rinzel and Nava Rubin",
year = "2008",
month = "7",
day = "31",
doi = "10.1167/8.7.20",
language = "English (US)",
volume = "8",
journal = "Journal of vision",
issn = "1534-7362",
number = "7",

}

TY - JOUR

T1 - Bi-stable depth ordering of superimposed moving gratings

AU - Moreno-Bote, Rubén

AU - Shpiro, Asya

AU - Rinzel, John

AU - Rubin, Nava

PY - 2008/7/31

Y1 - 2008/7/31

N2 - Ambiguous stimuli with two district interpretations give rise to perceptual alternations between them. During prolonged viewing of transparently moving gratings, observers report periods of perceiving one grating in front of the other, alternating with periods of the reverse depth ordering. We measured the percepts' dominance times to study the effect of depth cues (wavelength, duty cycle, and speed) on the perceived depth ordering. The grating with shorter wavelength, lower duty cycle, or higher speed was perceived as being behind the other for a fraction of time larger than one half. The fraction of time spent perceiving each grating as behind changed gradually as a function of the parameters. The fraction of dominance depended on the ratio between the gratings' wavelengths, not on their absolute sizes. The wavelength ratio had a stronger effect on perceived depth than that of duty cycle or speed and could override stereoscopic disparity cues. Similar results were obtained with superimposed moving surfaces of random dots. The findings are interpreted in terms of their relation to statistical properties of natural surfaces and provide evidence that the fraction of dominance of each percept represents the likelihood that it corresponds to the true interpretation of the underlying scene.

AB - Ambiguous stimuli with two district interpretations give rise to perceptual alternations between them. During prolonged viewing of transparently moving gratings, observers report periods of perceiving one grating in front of the other, alternating with periods of the reverse depth ordering. We measured the percepts' dominance times to study the effect of depth cues (wavelength, duty cycle, and speed) on the perceived depth ordering. The grating with shorter wavelength, lower duty cycle, or higher speed was perceived as being behind the other for a fraction of time larger than one half. The fraction of time spent perceiving each grating as behind changed gradually as a function of the parameters. The fraction of dominance depended on the ratio between the gratings' wavelengths, not on their absolute sizes. The wavelength ratio had a stronger effect on perceived depth than that of duty cycle or speed and could override stereoscopic disparity cues. Similar results were obtained with superimposed moving surfaces of random dots. The findings are interpreted in terms of their relation to statistical properties of natural surfaces and provide evidence that the fraction of dominance of each percept represents the likelihood that it corresponds to the true interpretation of the underlying scene.

KW - Bi-stability

KW - Depth

KW - Grating

KW - Plaid

UR - http://www.scopus.com/inward/record.url?scp=49749087567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=49749087567&partnerID=8YFLogxK

U2 - 10.1167/8.7.20

DO - 10.1167/8.7.20

M3 - Article

VL - 8

JO - Journal of vision

JF - Journal of vision

SN - 1534-7362

IS - 7

M1 - 20

ER -