BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:<b>Sensory Processing as a Function of Stimulus Statistics in the 
 Rat Barrel Cortex</b>
DTSTART:20101203T121500
DTSTAMP:20260408T060419Z
UID:8368b20abd9f61530e0c8e23e0453f4c3d6a7c140ef1faee0ae267fd
CATEGORIES:Conferences - Seminars
DESCRIPTION:Sami EL BOUSTANI\, Unité de Neurosciences Information et Comp
 lexité\, CNRS\, Paris\nRats sweep their whiskers on textured objects\, tr
 iggering decorrelated whisker deflections. Nonetheless\, when contacting l
 arge scale objets\, they produce synchronous deflections of their whiskers
 . The impact of such sensory context (the interwhisker correlation level) 
 on the encoding of whisker deflections by barrel cortex neurons is unknown
 . Using a multi-whisker stimulator (Jacob et al.\, 2010\, JNM 189: 65-74) 
 allowing the independent deflection of 24 caudal whiskers\, we applied whi
 te noise approach and reverse correlation analysis to study the impact of 
 interwhisker correlation on neuronal coding. In particular\, Spike-Trigger
 ed Analysis (STC) allowed us to identify a phase encoding space for barrel
  cortex neurons and to single out simple-like and complex-like response ch
 aracteristics. It also provided and efficient framework to demonstrate the
  massive impact of interwhisker correlation on neurons functional selectiv
 ity. A large subset of neurons displayed responses only at the highest lev
 els of interwhisker correlation whereas other cells were specifically sens
 itive to center-surround antagonism. This new functional description appea
 r more suited to describe barrel cortex neuron responses to a large variet
 y of sensory statistics.
LOCATION:BC 02 https://plan.epfl.ch/?room==BC%2002
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR