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SUMMARY:"Probing sensory representations with metameric stimuli" - Eero Si
 moncelli\, New York University
DTSTART:20120501T120000Z
DTEND:20120501T130000Z
UID:TALK37212@talks.cam.ac.uk
CONTACT:John Mollon
DESCRIPTION:Perceptual metamers - stimuli that differ physically\, but app
 ear the same - played  a fundamental role in the development of the trichr
 omatic theory of human color vision.   Vision scientists of the 19th centu
 ry used these stimuli to precisely characterize key properties of the earl
 y visual system\, allowing the standardization of color representations fo
 r engineered devices.   I'll discuss recent work in which we have used sim
 ple models of the early visual and auditory systems to predict the existen
 ce of new forms of metameric stimuli.  We've developed methods of generati
 ng such stimuli\, and used them in both perceptual and physiological studi
 es aimed at validating and further refining the models from which they are
  derived.  I'll also discuss implications for engineered systems.
LOCATION:Kenneth Craik Room\, Craik-Marshall Building\, Downing Site
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