Illusory depth induced by binocular torsional misalignment

Hiroyuki Mitsudo

doi:10.1016/j.visres.2007.02.007

Illusory depth induced by binocular torsional misalignment

Hiroyuki Mitsudo

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

This study reports a new depth illusion in which a static flat pattern appears stratified stereoscopically when viewed binocularly with an elevated gaze. Three psychophysical experiments measured perceived relative depth and fixational cyclodisparity (a rotation of one eye's view relative to the other eye's view about the line of sight) when flat patterns drawn with solid or dashed curved lines were fixated at various levels of gaze elevation. Experiments 1 and 2 showed that the patterns drawn with solid lines produced illusory depth only at large gaze elevations (downward and upward). Experiment 3 showed that the magnitude of the illusory depth was correlated with that of fixational cyclodisparity. These results suggest that the illusory depth originates in the binocular torsional misalignment generated by gaze elevation.

Original language	English
Pages (from-to)	1303-1314
Number of pages	12
Journal	Vision Research
Volume	47
Issue number	10
DOIs	https://doi.org/10.1016/j.visres.2007.02.007
Publication status	Published - May 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ophthalmology
Sensory Systems

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10.1016/j.visres.2007.02.007

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@article{b91cf7a2d6664370947f12dd0c0b5a8b,

title = "Illusory depth induced by binocular torsional misalignment",

abstract = "This study reports a new depth illusion in which a static flat pattern appears stratified stereoscopically when viewed binocularly with an elevated gaze. Three psychophysical experiments measured perceived relative depth and fixational cyclodisparity (a rotation of one eye's view relative to the other eye's view about the line of sight) when flat patterns drawn with solid or dashed curved lines were fixated at various levels of gaze elevation. Experiments 1 and 2 showed that the patterns drawn with solid lines produced illusory depth only at large gaze elevations (downward and upward). Experiment 3 showed that the magnitude of the illusory depth was correlated with that of fixational cyclodisparity. These results suggest that the illusory depth originates in the binocular torsional misalignment generated by gaze elevation.",

author = "Hiroyuki Mitsudo",

note = "Funding Information: This research was supported in part by JSPS Research Fellowships for Young Scientists. The experiments were conducted when I was with ATR Human Information Science Laboratories. I thank Miyuki Kamachi and Toshihiro Shimizu for helpful discussions on the experiments, and Diichiro Kuroki, Shin{\textquoteright}ya Nishida, Takako Saito, and two anonymous reviewers for their helpful comments and suggestions on an earlier version of this manuscript. A portion of this study was presented at the sixth Vision Sciences Society Annual Meeting (May 2006, Sarasota, Florida). ",

year = "2007",

month = may,

doi = "10.1016/j.visres.2007.02.007",

language = "English",

volume = "47",

pages = "1303--1314",

journal = "Vision Research",

issn = "0042-6989",

publisher = "Elsevier Limited",

number = "10",

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AU - Mitsudo, Hiroyuki

N1 - Funding Information: This research was supported in part by JSPS Research Fellowships for Young Scientists. The experiments were conducted when I was with ATR Human Information Science Laboratories. I thank Miyuki Kamachi and Toshihiro Shimizu for helpful discussions on the experiments, and Diichiro Kuroki, Shin’ya Nishida, Takako Saito, and two anonymous reviewers for their helpful comments and suggestions on an earlier version of this manuscript. A portion of this study was presented at the sixth Vision Sciences Society Annual Meeting (May 2006, Sarasota, Florida).

PY - 2007/5

Y1 - 2007/5

N2 - This study reports a new depth illusion in which a static flat pattern appears stratified stereoscopically when viewed binocularly with an elevated gaze. Three psychophysical experiments measured perceived relative depth and fixational cyclodisparity (a rotation of one eye's view relative to the other eye's view about the line of sight) when flat patterns drawn with solid or dashed curved lines were fixated at various levels of gaze elevation. Experiments 1 and 2 showed that the patterns drawn with solid lines produced illusory depth only at large gaze elevations (downward and upward). Experiment 3 showed that the magnitude of the illusory depth was correlated with that of fixational cyclodisparity. These results suggest that the illusory depth originates in the binocular torsional misalignment generated by gaze elevation.

AB - This study reports a new depth illusion in which a static flat pattern appears stratified stereoscopically when viewed binocularly with an elevated gaze. Three psychophysical experiments measured perceived relative depth and fixational cyclodisparity (a rotation of one eye's view relative to the other eye's view about the line of sight) when flat patterns drawn with solid or dashed curved lines were fixated at various levels of gaze elevation. Experiments 1 and 2 showed that the patterns drawn with solid lines produced illusory depth only at large gaze elevations (downward and upward). Experiment 3 showed that the magnitude of the illusory depth was correlated with that of fixational cyclodisparity. These results suggest that the illusory depth originates in the binocular torsional misalignment generated by gaze elevation.

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DO - 10.1016/j.visres.2007.02.007

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SP - 1303

EP - 1314

JO - Vision Research

JF - Vision Research

IS - 10

ER -

Illusory depth induced by binocular torsional misalignment

Abstract

All Science Journal Classification (ASJC) codes

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