2041669518800728.pdf (631.2 kB)
The illusion of uniformity does not depend on the primary visual cortex: evidence from sensory adaptation
Version 2 2023-06-12, 07:25
Version 1 2023-06-09, 14:50
journal contribution
posted on 2023-06-12, 07:25 authored by Marta Suárez-Pinilla, Anil SethAnil Seth, Warrick RoseboomWarrick RoseboomVisual experience appears richly detailed despite the poor resolution of the majority of the visual field, thanks to foveal-peripheral integration. The recently described Uniformity Illusion (UI), wherein peripheral elements of a pattern take on the appearance of foveal elements, may shed light on this integration. We examined the basis of UI by generating adaptation to a pattern of Gabors suitable for producing UI on orientation. After removing the pattern, participants reported the tilt of a single peripheral Gabor. The tilt after-effect followed the physical adapting orientation rather than the global orientation perceived under UI, even when the illusion had been reported for a long time. Conversely, a control experiment replacing illusory uniformity with a physically uniform Gabor pattern for the same durations did produce an after-effect to the global orientation. Results indicate that UI is not associated with changes in sensory encoding at V1, but likely depends on higher-level processes.
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Publication status
- Published
File Version
- Published version
Journal
i-PerceptionISSN
2041-6695Publisher
SAGE PublicationsExternal DOI
Issue
5Volume
9Page range
1-13Department affiliated with
- Informatics Publications
Research groups affiliated with
- Centre for Computational Neuroscience and Robotics Publications
- Sackler Centre for Consciousness Science Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-08-29First Open Access (FOA) Date
2018-08-29First Compliant Deposit (FCD) Date
2018-08-28Usage metrics
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