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Krasnow Institute > Monday Seminars > Abstracts
Competitive dynamics in cortical responses to conflicting stimuli Carson Chow National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health . When the visual system is presented with multiple or ambiguous images a number of outcomes can occur including disambiguation, normalization and oscillations. A striking example is binocular rivalry when the two eyes are presented with drastically different images. Only one of the images is perceived at a given time, and every few seconds there is alternation between the perceived images. The perceived durations of the images are stochastic and uncorrelated with previous perceived durations. Recordings from single neurons in the visual cortex of monkeys experiencing binocular rivalry find that neuronal activity is correlated with the monkey's perception. In this talk, I will show that a canonical cortical circuit of biophysically plausible neurons can account for the experimental and psychophysical results. In addition, the phenomena can be analyzed more carefully in a reduced population rate model .
The Krasnow Institute for Advanced Study |
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