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Title: Perceptual fading without retinal adaptation
Authors: Hsieh, P. 
Colas, J.T.
Keywords: Adaptation
Nonretinal contour
Perceptual fading
Issue Date: Apr-2012
Citation: Hsieh, P., Colas, J.T. (2012-04). Perceptual fading without retinal adaptation. Journal of Experimental Psychology: Human Perception and Performance 38 (2) : 267-271. ScholarBank@NUS Repository.
Abstract: A retinally stabilized object readily undergoes perceptual fading and disappears from consciousness. This startling phenomenon is commonly believed to arise from local bottom-up sensory adaptation to edge information that occurs early in the visual pathway, such as in the lateral geniculate nucleus of the thalamus or retinal ganglion cells. Here we use random dot stereograms to generate perceivable contours or shapes that are not present on the retina and ask whether perceptual fading occurs for such "cortical" contours. Our results show that perceptual fading occurs for "cortical" contours and that the time a contour requires to fade increases as a function of its size, suggesting that retinal adaptation is not necessary for the phenomenon and that perceptual fading may be based in the cortex. © 2012 American Psychological Association.
Source Title: Journal of Experimental Psychology: Human Perception and Performance
ISSN: 00961523
DOI: 10.1037/a0026963
Appears in Collections:Staff Publications

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