Illumination frame of reference in the object-reviewing paradigm: A case of luminance and lightness.
The present study combines the object-reviewing paradigm (Kahneman, Treisman, & Gibbs, 1992) with the checkershadow illusion (Adelson, 1995) to contrast the effects of objects' luminance versus lightness on the object-specific preview benefit. To this end, we manipulated objects' luminance and the amount of illumination given by an informative background scene in experiments. In line with previous studies (Moore, Stephens, & Hein, 2010), there was no object-specific preview benefit when objects were presented on a uniformly colored background and luminance switched between objects. In contrast, when objects were presented on the checkershadow illusion background which provided an explanation for the luminance switch, a reliable object-specific preview benefit was observed. This suggests that object correspondence as measured by the object-reviewing paradigm can be influenced by scene-induced, perceived lightness of objects' surfaces. We replicated this finding and moreover showed that the scene context only influences the object-specific preview benefit if the objects are perceived as part of the background scene.
Department of Psychological & Brain Sciences, University of Iowa.
Anja
A
Fiedler
Department of Psychological & Brain Sciences, University of Iowa.
Cathleen M
CM
Moore
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007600:Judgment / Q000502:physiology*; D008029:Lighting; D008297:Male; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods*; D011930:Reaction Time / Q000502:physiology*; D013334:Students; D014785:Vision, Ocular / Q000502:physiology*; D055815:Young Adult