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A tilt after-effect for images of buildings: evidence of selectivity for the orientation of everyday scenes.

ABSTRACT: The tilt after-effect (TAE) is thought to be a manifestation of gain control in mechanisms selective for spatial orientation in visual stimuli. It has been demonstrated with luminance-defined stripes, contrast-defined stripes, orientation-defined stripes and even with natural images. Of course, all images can be decomposed into a sum of stripes, so it should not be surprising to find a TAE when adapting and test images contain stripes that differ by 15° or so. We show this latter condition is not necessary for the TAE with natural images: adaptation to slightly tilted and vertically filtered houses produced a 'repulsive' bias in the perceived orientation of horizontally filtered houses. These results suggest gain control in mechanisms selective for spatial orientation in natural images.

SUBMITTER: Hussain Ismail AM

PROVIDER: S-EPMC5180141 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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A tilt after-effect for images of buildings: evidence of selectivity for the orientation of everyday scenes.

Hussain Ismail Ahamed Miflah AM Solomon Joshua A JA Hansard Miles M Mareschal Isabelle I

Royal Society open science 20161123 11

The tilt after-effect (TAE) is thought to be a manifestation of gain control in mechanisms selective for spatial orientation in visual stimuli. It has been demonstrated with luminance-defined stripes, contrast-defined stripes, orientation-defined stripes and even with natural images. Of course, all images can be decomposed into a sum of stripes, so it should not be surprising to find a TAE when adapting and test images contain stripes that differ by 15° or so. We show this latter condition is no ...[more]

PMID: 28018643

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