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SUMMARY:Neuronal mechanisms for perceptual organization - Dr Pieter Roelfs
 ema\, Netherlands Institute for Neuroscience
DTSTART:20140306T130000Z
DTEND:20140306T140000Z
UID:TALK51252@talks.cam.ac.uk
CONTACT:John Mollon
DESCRIPTION: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 ho
 rizontal corticocortical connections come in play that label the image ele
 ments of one perceptual object with enhanced neuronal activity. I will sho
 w data indicating that feedforward and feedback processing rely on differe
 nt glutamate receptors and on processing in different cortical layers.
LOCATION:Kenneth Craik Room\, Craik-Marshall Building\, Downing Site
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