Elsevier

Vision Research

Volume 32, Issue 3, March 1992, Pages 587-590
Vision Research

Retinal speed gradients and the perception of surface slant

https://doi.org/10.1016/0042-6989(92)90252-EGet rights and content

Abstract

Previous work has demonstrated a difference in human sensitivity to compressive and shearing speed gradients. This raises the possibility that the ability to estimate the slant of a surface may vary with its direction of tilt. No such variance was found here, which may indicate that slant estimation depends upon deformation rather than upon compression or shear.

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