First-order structure induces the 3-D curvature contrast effect

Susan F. te Pas; Astrid M.L. Kappers

doi:10.1016/S0042-6989(01)00208-5

First-order structure induces the 3-D curvature contrast effect

Susan F. te Pas (Corresponding author)
, Astrid M.L. Kappers

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

6 Citations (Scopus)

Abstract

A 3-D curvature contrast effect has been reported in shading-and-texture-defined (Curran & Johnson (1996). Vision Research 36, 3641-3653) and in stereoscopically defined (te Pas, Rogers, & Ledgeway (2000). Current Psychology Letters: Brain, Behaviour and Cognition 1, 117-126) stimuli. Our experiments show that a clear 3-D curvature contrast effect also occurs in motion-defined stimuli. The magnitude of the effect is similar in motion-, stereo- and shading-and-texture defined stimuli, suggesting that the 3-D curvature contrast effect is shape-based. We find a distinct contrast effect that is similar in the case of inducers that contain second-order (curvature) information and in the case of inducers that contain only first-order (slant and tilt) information. The effect with inducers that contain only zeroth-order (depth) information is very small. We conclude that the first-order structure is sufficient to induce a 3-D contrast effect.

Original language	English
Pages (from-to)	3829-3835
Number of pages	7
Journal	Vision Research
Volume	41
Issue number	28
DOIs	https://doi.org/10.1016/S0042-6989(01)00208-5
Publication status	Published - 1 Dec 2001
Externally published	Yes

Funding

This research was supported by the Netherlands Organization for Scientific Research (NWO, ALW grant 809-37-005; SGW grant 575-24-004). The authors would like to thank Erik Kreiter and Mohamed el Kaddouri for their work on this project.

Keywords

Curvature contrast
Curvature discrimination
Structure-from-motion
Vision

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10.1016/S0042-6989(01)00208-5

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title = "First-order structure induces the 3-D curvature contrast effect",

abstract = "A 3-D curvature contrast effect has been reported in shading-and-texture-defined (Curran \& Johnson (1996). Vision Research 36, 3641-3653) and in stereoscopically defined (te Pas, Rogers, \& Ledgeway (2000). Current Psychology Letters: Brain, Behaviour and Cognition 1, 117-126) stimuli. Our experiments show that a clear 3-D curvature contrast effect also occurs in motion-defined stimuli. The magnitude of the effect is similar in motion-, stereo- and shading-and-texture defined stimuli, suggesting that the 3-D curvature contrast effect is shape-based. We find a distinct contrast effect that is similar in the case of inducers that contain second-order (curvature) information and in the case of inducers that contain only first-order (slant and tilt) information. The effect with inducers that contain only zeroth-order (depth) information is very small. We conclude that the first-order structure is sufficient to induce a 3-D contrast effect.",

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AU - Kappers, Astrid M.L.

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N2 - A 3-D curvature contrast effect has been reported in shading-and-texture-defined (Curran & Johnson (1996). Vision Research 36, 3641-3653) and in stereoscopically defined (te Pas, Rogers, & Ledgeway (2000). Current Psychology Letters: Brain, Behaviour and Cognition 1, 117-126) stimuli. Our experiments show that a clear 3-D curvature contrast effect also occurs in motion-defined stimuli. The magnitude of the effect is similar in motion-, stereo- and shading-and-texture defined stimuli, suggesting that the 3-D curvature contrast effect is shape-based. We find a distinct contrast effect that is similar in the case of inducers that contain second-order (curvature) information and in the case of inducers that contain only first-order (slant and tilt) information. The effect with inducers that contain only zeroth-order (depth) information is very small. We conclude that the first-order structure is sufficient to induce a 3-D contrast effect.

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KW - Curvature contrast

KW - Curvature discrimination

KW - Structure-from-motion

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First-order structure induces the 3-D curvature contrast effect

Abstract

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Keywords

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