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Visual motion retards alternations between conflicting perceptual interpretations (2003)
| Venue: | Neuron |
| Citations: | 30 - 0 self |
BibTeX
@ARTICLE{Blake03visualmotion,
author = {Olph Blake and Kenith V. Sobel and Lee A. Gilroy},
title = {Visual motion retards alternations between conflicting perceptual interpretations},
journal = {Neuron},
year = {2003},
pages = {869--878}
}
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Abstract
When the visual system is faced with conflicting or ambiguous stimulus information, visual perception fluctuates over time. We found that perceptual alterna-tions are slowed when inducing stimuli move within the visual field, constantly engaging fresh, unadapted neural tissue. During binocular rivalry, dominance du-rations were longer when rival figures moved compared to when they were stationary, yielding lower alternation rates. Rate was not reduced, however, when observers tracked the moving targets, keeping the images on approximately the same retinal area. Alternations were reliably triggered when rival targets passed through a local region of the visual field pre-adapted to one of the rival targets. During viewing of a kinetic globe whose direction of rotation was ambig-uous, observers experienced fewer alternations in perceived direction when the globe moved around the visual field or when the globe’s axis of rotation changed continuously. Evidently, local neural adapta-tion is a key ingredient in the instability of perception.
Keyphrases
visual motion retard alternation visual field perceptual interpretation rival target perceptual alterna-tions visual system local neural adapta-tion retinal area perceived direction rival figure key ingredient unadapted neural tissue dominance du-rations binocular rivalry globe axis ambiguous stimulus information alternation rate kinetic globe visual perception local region
