Orientation discrimination of motion-defined gratings

G. Sáry, Rufin Vogels, Guy A. Orban

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Spatial boundaries can be defined by discontinuities in motion. However, several types of motion contrast exist, each corresponding to the involvement of different spatio-temporal cues. We examined the contribution of two motion cues: a difference in direction of motion (relative motion) and a dynamic occlusion cue. We measured just noticeable differences in the orientation of boundaries defined by one or both of these visual cues. Just noticeable differences in orientation were similar to those reported for luminance gratings, and the presence of two cues in place of one, lowered the thresholds. These results show that relative motion as well as dynamic occlusion can yield precise spatial boundary information.

Original languageEnglish
Pages (from-to)1331-1334
Number of pages4
JournalVision Research
Volume34
Issue number10
DOIs
Publication statusPublished - 1994

Fingerprint

Cues
Differential Threshold
Discrimination (Psychology)

Keywords

  • Boundaries
  • Occlusion
  • Orientation discrimination
  • Relative motion

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Orientation discrimination of motion-defined gratings. / Sáry, G.; Vogels, Rufin; Orban, Guy A.

In: Vision Research, Vol. 34, No. 10, 1994, p. 1331-1334.

Research output: Contribution to journalArticle

Sáry, G. ; Vogels, Rufin ; Orban, Guy A. / Orientation discrimination of motion-defined gratings. In: Vision Research. 1994 ; Vol. 34, No. 10. pp. 1331-1334.
@article{76f0ceeff347411fa2486d66cc07086e,
title = "Orientation discrimination of motion-defined gratings",
abstract = "Spatial boundaries can be defined by discontinuities in motion. However, several types of motion contrast exist, each corresponding to the involvement of different spatio-temporal cues. We examined the contribution of two motion cues: a difference in direction of motion (relative motion) and a dynamic occlusion cue. We measured just noticeable differences in the orientation of boundaries defined by one or both of these visual cues. Just noticeable differences in orientation were similar to those reported for luminance gratings, and the presence of two cues in place of one, lowered the thresholds. These results show that relative motion as well as dynamic occlusion can yield precise spatial boundary information.",
keywords = "Boundaries, Occlusion, Orientation discrimination, Relative motion",
author = "G. S{\'a}ry and Rufin Vogels and Orban, {Guy A.}",
year = "1994",
doi = "10.1016/0042-6989(94)90207-0",
language = "English",
volume = "34",
pages = "1331--1334",
journal = "Vision Research",
issn = "0042-6989",
publisher = "Elsevier Limited",
number = "10",

}

TY - JOUR

T1 - Orientation discrimination of motion-defined gratings

AU - Sáry, G.

AU - Vogels, Rufin

AU - Orban, Guy A.

PY - 1994

Y1 - 1994

N2 - Spatial boundaries can be defined by discontinuities in motion. However, several types of motion contrast exist, each corresponding to the involvement of different spatio-temporal cues. We examined the contribution of two motion cues: a difference in direction of motion (relative motion) and a dynamic occlusion cue. We measured just noticeable differences in the orientation of boundaries defined by one or both of these visual cues. Just noticeable differences in orientation were similar to those reported for luminance gratings, and the presence of two cues in place of one, lowered the thresholds. These results show that relative motion as well as dynamic occlusion can yield precise spatial boundary information.

AB - Spatial boundaries can be defined by discontinuities in motion. However, several types of motion contrast exist, each corresponding to the involvement of different spatio-temporal cues. We examined the contribution of two motion cues: a difference in direction of motion (relative motion) and a dynamic occlusion cue. We measured just noticeable differences in the orientation of boundaries defined by one or both of these visual cues. Just noticeable differences in orientation were similar to those reported for luminance gratings, and the presence of two cues in place of one, lowered the thresholds. These results show that relative motion as well as dynamic occlusion can yield precise spatial boundary information.

KW - Boundaries

KW - Occlusion

KW - Orientation discrimination

KW - Relative motion

UR - http://www.scopus.com/inward/record.url?scp=0028348686&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028348686&partnerID=8YFLogxK

U2 - 10.1016/0042-6989(94)90207-0

DO - 10.1016/0042-6989(94)90207-0

M3 - Article

C2 - 8023441

AN - SCOPUS:0028348686

VL - 34

SP - 1331

EP - 1334

JO - Vision Research

JF - Vision Research

SN - 0042-6989

IS - 10

ER -