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UID:20250711T173025EDT-0457EmvMil@132.216.98.100
DTSTAMP:20250711T213025Z
DESCRIPTION:Spatial hearing has long been appreciated to aid in hearing out
  a signal amid a crowd of competing sounds\, like the task of following a 
 conversation at a noisy cocktail party. Nevertheless\, objective psychophy
 sical measures have yielded conflicting results\, with some studies showin
 g only weak effects of spatial separation when listeners are asked to inte
 grate information across sources. In contrast\, we find a robust spatial e
 ffect in a task in which listeners must segregate interleaved sound sequen
 ces\, like the task of that cocktail-party guest. I will present results o
 f psychophysical measures of spatial stream segregation in humans and cats
 . I also will present recordings from primary auditory cortex showing that
  single neurons can synchronize preferentially to one or the other of two 
 interleaved sound sequences with spatial acuity comparable to that of psyc
 hophysical listeners. I will argue that spatial stream segregation is a la
 rgely bottom-up process that results in multiple distinct populations of m
 utually synchronized neurons and that the perceptual task of selecting an 
 auditory object of attention is a top-down process of selection among thos
 e populations.\n
DTSTART:20151109T210000Z
DTEND:20151109T220000Z
LOCATION:de GrandPré Communications Centre\, Montreal Neurological Institut
 e\, CA\, QC\, Montreal\, H3A 2B4\, 3801 rue University
SUMMARY:Spatial Hearing at the Cocktail Party
URL:/channels-contribute/channels/event/spatial-hearin
 g-cocktail-party-256390
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