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Title: Local and global contextual constraints on the identification of objects in scenes
Authors: De Graef, Peter ×
De Troy, A
Dydewalle, G #
Issue Date: Sep-1992
Publisher: Canadian psychol assoc
Series Title: Canadian journal of psychology-revue canadienne de psychologie vol:46 issue:3 pages:489-508
Abstract: Objects likely to appear in a given real-world scene are frequently found to be easier to recognize. Two different sources of contextual information have been proposed as the basis for this effect: global scene background and individual companion objects. The present paper examines the relative importance of these two elements in explaining the context-sensitivity of object identification in full scenes. Specific sequences of object fixations were elicited during free scene exploration, while fixation times on designated target objects were recorded as a measure of ease of target identification. Episodic consistency between the target, the global scene background, and the object fixated just prior to the target (the prime), were manipulated orthogonally. Target fixation times were examined for effects of prime and background. Analyses show effects of both factors, which are modulated by the chronology and spatial extent of scene exploration. The results are discussed in terms of their implications for a model of visual object recognition in the context of real-world scenes.
ISSN: 0008-4255
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory for Experimental Psychology
× corresponding author
# (joint) last author

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