Surround Suppression in the Early Visual System
نویسندگان
چکیده
منابع مشابه
Visual Surround Suppression in Schizophrenia
Compared to unaffected observers patients with schizophrenia (SZ) show characteristic differences in visual perception, including a reduced susceptibility to the influence of context on judgments of contrast - a manifestation of weaker surround suppression (SS). To examine the generality of this phenomenon we measured the ability of 24 individuals with SZ to judge the luminance, contrast, orien...
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In the primary visual cortex and higher-order areas, it is well known that the stimulation of areas surrounding the classical receptive field of a neuron can inhibit its responses. In the primate area middle temporal (MT), this surround suppression was shown to be spatially organized into high and low suppression modules. However, such an organization has not been demonstrated yet in the primar...
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In what regime does the cortical circuit operate? Our intracellular studies of surround suppression in cat primary visual cortex (V1) provide strong evidence on this question. Although suppression has been thought to arise from an increase in lateral inhibition, we find that the inhibition that cells receive is reduced, not increased, by a surround stimulus. Instead, suppression is mediated by ...
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Surround suppression is a well known phenomenon whereby the perceived intensity of a stimulus is lowered by the relative intensity of its surroundings. Psychophysical work has demonstrated the influence of a variety of stimulus factors, including similarity of features between the “foreground” (center) and “background” (surround). Such behavioral indices have provided novel insights in clinical...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2006
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.0236-06.2006