title: Perceptual filling-in of negative coloured afterimages.
abstract: Filling-in of brightness, colour, and texture refers to the perceptual spreading of surround features onto the target area. This phenomenon has been extensively investigated in real images. Here, we study colour spreading in afterimages of disk-ring patterns, using a variety of colour combinations. We show that colour filling-in and filling-out in afterimages follow rules different from those found for real images, suggesting that the brain treats afterimages as genuine 'stimuli'.
authors.affiliation: Brain Research Unit, Department of Neurology, University Hospital, Freiburg, Germany. kai.hamburger@psychol.uni-giessen.de
authors.forename: Kai
authors.initials: K
authors.lastname: Hamburger
authors.forename: Adam
authors.initials: A
authors.lastname: Geremek
authors.forename: Lothar
authors.initials: L
authors.lastname: Spillmann
mesh_terms: D000328:Adult; D000360:Afterimage; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation