Consciousness and Cognition 20 (4):1659-1675 (2011)

Authors
Morten Overgaard
Aalborg University
Kristian Sandberg
University of Aarhus
Abstract
When consciousness is examined using subjective ratings, the extent to which processing is conscious or unconscious is often estimated by calculating task performance at the subjective threshold or by calculating the correlation between accuracy and awareness. However, both these methods have certain limitations. In the present article, we propose describing task accuracy and awareness as functions of stimulus intensity as suggested by Koch and Preuschoff . The estimated lag between the curves describes how much stimulus intensity must increase for awareness to change proportionally as much as accuracy and the slopes of the curves are used to assess how fast accuracy and awareness increases and whether awareness is dichotomous. The method is successfully employed to assess consciousness characteristics on data from four different awareness scales
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DOI 10.1016/j.concog.2011.09.002
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Priming with and Without Awareness.J. Cheesman & Philip M. Merikle - 1984 - Perception and Psychophysics 36:387-95.

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