Perception 19:483-489 (1990)

Authors
Birgitta Dresp-Langley
Centre National de la Recherche Scientifique
Abstract
The perceived strength of darkness enhancement in the centre of surfaces surrounded or not surrounded by illusory contours was investigated as a function of proximity of the constituent elements of the display and their angular size. Magnitude estimation was used to measure the perception of the darkness phenomenon in white-on-grey stimuli. Darkness enhancement was perceived in both types of the stimuli used, but more strongly in the presence of illusory contours. In both cases, perceived darkness enhancement increased with increasing proximity of the constituent parts of the display and with their angular size. These results suggest that the occurrence of darkness (or brightness) enhancement phenomena in the centre of the displays is not directly related to illusory contours, which only reinforce the subjective surface brightness/darkness.
Keywords kanizsa illusion  subjective brightness  illusory contours
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The Kanizsa Square Does Not Engender a Configural Superiority Effect.Birgitta Dresp - 1993 - Bulletin of the Psychonomic Society 31 (3):183-184.
Object Completion Effects in Attention and Memory.Siyi Chen - 2018 - Dissertation, Ludwig-Maximilians-Universität

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