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Title: Blinded by the load: attention, awareness and the role of perceptual load
Authors: Lavie, Nilli 
Beck, Diane M 
Konstantinou, Nikos 
Major Field of Science: Medical and Health Sciences
Field Category: Other Medical Sciences
Keywords: Inattentional blindness;Perceptual load;Attention;Conscious visual awareness;Change blindness;Contrast response function
Issue Date: 5-May-2014
Source: Philosophical Transactions of the Royal Society B: Biological Sciences, 2014, Vol. 369, no. 1641
Volume: 369
Issue: 1641
Journal: Philosophical transactions of the Royal Society of London. Series B, Biological sciences 
Abstract: What is the relationship between attention and conscious awareness? Awareness sometimes appears to be restricted to the contents of focused attention, yet at other times irrelevant distractors will dominate awareness. This contradictory relationship has also been reflected in an abundance of discrepant research findings leading to an enduring controversy in cognitive psychology. Lavie's load theory of attention suggests that the puzzle can be solved by considering the role of perceptual load. Although distractors will intrude upon awareness in conditions of low load, awareness will be restricted to the content of focused attention when the attended information involves high perceptual load. Here, we review recent evidence for this proposal with an emphasis on the various subjective blindness phenomena, and their neural correlates, induced by conditions of high perceptual load. We also present novel findings that clarify the role of attention in the response to stimulus contrast. Overall, this article demonstrates a critical role for perceptual load across the spectrum of perceptual processes leading to awareness, from the very early sensory responses related to contrast detection to explicit recognition of semantic content.
ISSN: 1471-2970
DOI: 10.1098/rstb.2013.0205
Rights: © Royal Society
Type: Article
Affiliation : University College London 
University of Illinois at Urbana-Champaign 
University of Cyprus 
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