Print Email Facebook Twitter Abrupt luminance change pops out; abrupt color change does not Title Abrupt luminance change pops out; abrupt color change does not Author Theeuwes, J. TNO Technische Menskunde Publication year 1995 Abstract The present studies investigated whether an isoluminant color change pops out, indicating that it can be detected preattentively in parallel. The results of Experi-ment 1 show that an abrupt color change presented on an equiluminant back-ground does not pop out. However, when the color change is accompanied by a small luminance change, it does pop out. The results of Experiment 2 show that the pop-out is fully due to the luminance change and not to the color change. The results of Experiments 3 and 4 show that the failure to find a pop-out at equilumi-nance cannot be attributed to the limited temporal resolution for chromatic stimuli. The results of Experiment 5 show that particular search strategies cannot be responsible for the obtained results. The results are in agreement with physiol-ogical findings regarding the parvo and magno systems.Deze studie laat zien dat een abrupte kleurverandering gepresenteerd tegen een isoluminante achtergrond geen pop-out geeft. Subject Perceptionattentioncolor visioncontrast sensitivitydiscrimination learninghumanorientationpsychophysicsreaction timeAttentionColor PerceptionContrast SensitivityDiscrimination LearningHumanOrientationPsychophysicsReaction Time To reference this document use: http://resolver.tudelft.nl/uuid:280a4c1c-8b99-45e4-a015-67d43595820c TNO identifier 8287 Source Perception & Psychophysics, 57 (5), 637-644 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.