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SUMMARY:The coding of surprise in the auditory system
DTSTART:20121108T133000
DTEND:20121108T143000
DTSTAMP:20260406T134358Z
UID:97d8bb61140f9f1f9bded2497de098d6d09fa54b6213067dd7983faa
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Israel NELKEN\, Department of Neurobiology\, Hebrew Univ
 ersity\nThe responses of neurons in the auditory system to sounds depend n
 ot only on the sound itself but also on the temporal context in which the 
 sound occurred. I will discuss here one manifestation of this context-sens
 itivity\, Stimulus-specific adaptation (SSA). SSA is the reduction in the 
 responses to a common sound which does not generalize\, or generalizes onl
 y partially\, to other\, even rather similar sounds. I will show that SSA 
 reflects information accumulation over tens of stimulus presentations and 
 tens of seconds\, and that it is sensitive to subtle features of the stimu
 lus sequence. While SSA in subcortical stations may be accounted for by si
 mple adaptation followed by frequency integration\, cortical SSA cannot be
  accounted by such mechanisms\, and may reflect a true sensitivity to stat
 istical surprise.
LOCATION:SG 0213 http://plan.epfl.ch/?room=sg0213
STATUS:CONFIRMED
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