Surface regions of illusory images are detected with a slower processing speed than those of luminance-de¿ned images

Milena Mihaylova, Velitchko Manahilov

Research output: Contribution to journalArticle

Abstract

Research has shown that the processing time for discriminating illusory contours is longer than for real contours. We know, however, little whether the visual processes, associated with detecting regions of illusory surfaces, are also slower as those responsible for detecting luminance-defined images. Using a speed–accuracy trade-off (SAT) procedure, we measured accuracy as a function of processing time for detecting illusory Kanizsa-type and luminance-defined squares embedded in 2D static luminance noise. The data revealed that the illusory images were detected at slower processing speed than the real images, while the points in time, when accuracy departed from chance, were not significantly different for both stimuli.

Original languageEnglish
JournalJournal of Vision
Volume10
Issue number13
DOIs
Publication statusPublished - 1 Nov 2010

Keywords

  • optics
  • vision sciences

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