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SUMMARY:V&C Seminar // "Perceptual unlearning of suppressed visual informa
 tion”
DTSTART:20150226T140000
DTSTAMP:20260506T152805Z
UID:66d00b40656a73ea453584413acba66034b2c749d6b7137fb685f7a1
CATEGORIES:Conferences - Seminars
DESCRIPTION:Mark Vergeer\,\nLaboratory of Experimental Psychology\,\nKU Le
 uven\nAbstract: In visual perceptual learning\, the ability to respond to 
 visible stimuli generally improves through practice. The visual input on o
 ur retina\, however\, is intrinsically ambiguous\, supporting a multitude 
 of valid representations. The brain selects one out of many possible visua
 l interpretations\, and while that interpretation is then neurally enhance
 d\, alternative interpretations will remain perceptually suppressed. I wil
 l present data\, showing that not only visibility can improve through trai
 ning\, but that suppression can also be trained. After continuous\, binocu
 lar suppression of the same stimulus presented to the same eye during trai
 ning\, sensitivity towards the suppressed stimulus becomes worse compared 
 to untrained stimuli. In a follow-up experiment\, a double training paradi
 gm was used to test whether the mechanisms responsible for this kind of 
 ‘perceptual unlearning’ take place within monocular or binocular visua
 l cortical areas. These findings are indicative of the plasticity of inhib
 itory networks responsible for perceptual suppression. I will discuss thes
 e findings in relation to current views on learning mechanisms. During the
  remainder of my talk\, I will present a recent\, ongoing study in which w
 e are interested in perceptual integration of visible and invisible parts 
 of a perceived object representation. I will present data supporting the n
 otion that complex 3D integration of different stimulus parts can occur al
 so when some of the stimulus parts are not represented consciously.
LOCATION:SV 3510 http://plan.epfl.ch/?lang=fr&room=sv+3510
STATUS:CONFIRMED
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