Neuronal mechanisms for perceptual organization
- 👤 Speaker: Dr Pieter Roelfsema, Netherlands Institute for Neuroscience 🔗 Website
- 📅 Date & Time: Thursday 06 March 2014, 13:00 - 14:00
- 📍 Venue: Kenneth Craik Room, Craik-Marshall Building, Downing Site
Abstract
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.
Series This talk is part of the Craik Club series.
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Thursday 06 March 2014, 13:00-14:00