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Neuronal mechanisms for perceptual organization

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If you have a question about this talk, please contact John Mollon.

Host: Professor Zoë Kourtzi

I will discuss the neuronal mechanisms for perceptual grouping. When a new stimulus appears, the visual system quickly registers simple and complex features in a first phase of feedforward processing. This is followed by a second recurrent „attentive” phase where feedback and horizontal corticocortical connections come in play that label the image elements of one perceptual object with enhanced neuronal activity. I will show data indicating that feedforward and feedback processing rely on different glutamate receptors and on processing in different cortical layers.

This talk is part of the Craik Club series.

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