title: Retinal speed gradients and the perception of surface slant.
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.
authors.affiliation: Cognitive Science Research Centre, School of Psychology, University of Birmingham, England.
authors.forename: M
authors.initials: M
authors.lastname: Harris
authors.forename: T
authors.initials: T
authors.lastname: Freeman
authors.forename: J
authors.initials: J
authors.lastname: Hughes
mesh_terms: D006801:Humans; D009039:Motion Perception / Q000502:physiology*; D012160:Retina / Q000502:physiology*; D013028:Space Perception / Q000502:physiology*