Illusions as neuro-signs
نویسندگان
چکیده
منابع مشابه
Illusions as neuro-signs
Orientation is a dimension much studied in visual neuroscience. Many single cells in the visual cortex respond to lines or edges in specific orientations, and in monkey cortex these cells are specific for lines within ±20° of the preferred orientation. One class of illusion, involving perception of orientation, can direct us towards interpretations of neural function (in this series, referred t...
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Almost the whole of visual science is concerned with illusions — if they are defined as images in which the physical description differs from the image perceived. One of the attractions of illusions, apart from their obvious appeal as geometrical abstract art, is that they direct us to an understanding of visual processing at many levels. But before the question of why an illusion is perceived ...
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We show that Mach bands and a number of other low-level brightness illusions can be accounted for by assuming that the perceptual system performs simple Bayesian inference using a Gaussian image prior with noisy retinal gangion cells. This theory accounts for phenomena which have proven problematic for simple energy-based and lateral-interaction models while avoiding the complexities of mid-lev...
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INTRODUCTION The central nervous system involvement in Behçet's disease occurs in 5-30% of cases. The diagnosis of pseudotumor cerebri is even rarer (only 22 cases reported worldwide). PURPOSE To emphasize the importance of differential diagnosis in a case of pseudotumor cerebri in the context of ocular inflammation. METHODS V.A.V.R., a 31 year old female, was diagnosed with pan-uveitis on ...
متن کاملOn Brightness Illusions as Optimal Percepts
We show that Mach bands and a number of other low-level brightness illusions can be accounted for by assuming that the perceptual system performs simple Bayesian inference using a Gaussian image prior with noisy retinal gangion cells. This theory accounts for phenomena which have proven problematic for simple energy-based and lateral-interaction models while avoiding the complexities of mid-lev...
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ژورنال
عنوان ژورنال: Current Biology
سال: 1998
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(98)70429-4