title: A test of Levelt's second proposition for binocular rivalry.
abstract: Levelt's second proposition (1968) was tested by investigating the effect of increasing the stimulus strength on the ipsilateral mean dominance duration. In three experiments, three stimulus dimensions were investigated: luminance contrast, colour contrast, and motion velocity. We included an experiment similar to Levelt's own equipment, in which a reversed contrast stimulus was used. In all three experiments, including the Levelt disk-ring experiment, the proposition was rejected. We conclude that Levelt's proposition cannot always be generalized to a broad class of stimulus dimensions and therefore cannot be held against reciprocal inhibition models.
authors.affiliation: University of Nijmegen, Nijmegen Institute for Cognition and Information (NICI), The Netherlands.
authors.forename: C J
authors.initials: CJ
authors.lastname: Bossink
authors.forename: P F
authors.initials: PF
authors.lastname: Stalmeier
authors.forename: C M
authors.initials: CM
authors.lastname: De Weert
mesh_terms: D000328:Adult; D003118:Color Perception / Q000502:physiology; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D009039:Motion Perception / Q000502:physiology; D010775:Photic Stimulation; D011601:Psychophysics; D015348:Vision, Binocular / Q000502:physiology*