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Psychol Sci. 2011 Jun;22(6):764-70. doi: 10.1177/0956797611408736. Epub 2011 May 9.

Integration without awareness: expanding the limits of unconscious processing.

Author information

1
Department of Psychology, Tel Aviv University, Israel. liadmu@gmail.com

Abstract

Human conscious awareness is commonly seen as the climax of evolution. However, what function-if any-it serves in human behavior is still debated. One of the leading suggestions is that the cardinal function of conscious awareness is to integrate numerous inputs-including the multitude of features and objects in a complex scene-across different levels of analysis into a unified, coherent, and meaningful perceptual experience. Here we demonstrate, however, that integration of objects with their background scenes can be achieved without awareness of either. We used a binocular rivalry technique known as continuous flash suppression to induce perceptual suppression in a group of human observers. Complex scenes that included incongruent objects escaped perceptual suppression faster than normal scenes did. We conclude that visual awareness is not needed for object-background integration or for processing the likelihood of an object to appear within a given semantic context, but may be needed for dealing with novel situations.

PMID:
21555524
DOI:
10.1177/0956797611408736
[Indexed for MEDLINE]

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