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SUMMARY:Motion processing in autism: atypical bounded integration - Caroli
 ne Robertson
DTSTART:20101105T130000Z
DTEND:20101105T140000Z
UID:TALK26619@talks.cam.ac.uk
CONTACT:Teresa Tavassoli
DESCRIPTION:Many studies have pointed to a coherent motion perception defi
 cit in autism spectrum conditions (ASC). We examine this deficit in light 
 of electrophysiological research on the neural circuit that integrates mot
 ion signals towards a perceptual decision (Shadlen\, 1996). An essential f
 eature of this bounded accumulation is time: it takes time for initial var
 iability in motion evidence to stabilize and reach a critical decision bou
 nd. As a result\, parametric variation of viewing duration is a key experi
 mental manipulation for uncovering the roots of coherent motion perception
  deficits in ASC.  Preliminary fMRI analyses of an event-related study exa
 mining motion integration in ASC will also be discussed.
LOCATION:Library (first floor)\, Douglas House\, 18 B\, Trumpington Road
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