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SUMMARY:A binocular contribution to perceived speed of self-motion percept
 ion. - Prof Albert van den Berg (Donders Institute\, Nijmegen) 
DTSTART:20140612T120000Z
DTEND:20140612T130000Z
UID:TALK52972@talks.cam.ac.uk
CONTACT:John Mollon
DESCRIPTION:It is  well known that the optic flow provides a wealth of inf
 ormation to help the observer establish her  self-motion and the layout of
  the environment.  Binocular information may therefore be nearly superfluo
 us for navigation tasks. Indeed\, previous demonstrations of a binocular c
 ontribution to perception of heading direction are subtle  and have been d
 isputed. Here I ask whether binocular information contributes to the perce
 ived speed of self-motion. To identify which aspects of binocular signals 
 contribute and which motion sensitive cortical regions are involved\, we u
 sed a novel stimulus that decoupled optic flow from binocular information.
   Vergence and retinal disparity did not apear to enhance the judged speed
  of simulated self-motion. Head-centric disparity did\, with correlated BO
 LD signals in areas V3A and V6.
LOCATION:Lecture Theatre\, Department of Psychology\, Downing Site
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