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Springer Verlag, Psychonomic Bulletin and Review, 2(22), p. 453-460

DOI: 10.3758/s13423-014-0706-2

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Consciousness is not necessary for visual feature binding

Journal article published in 2014 by André W. Keizer, Bernhard Hommel ORCID, Victor A. F. Lamme
This paper is available in a repository.
This paper is available in a repository.

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Abstract

When visual information enters the brain, it is relayed to different specialized regions, processing features such as shape, color, or motion. And yet, in our conscious experience of a colored, moving shape, all the different features seem to be integrated into one unified percept. Therefore, it has been hypothesized that consciousness and feature binding share an intimate relationship. To study this relationship, we used a paradigm in which the behavioral effects of feature binding can be measured. Using masks, we investigated whether spontaneous binding between the orientation and location of a Gabor patch takes place when the Gabor patch is processed consciously or unconsciously. The results of our study suggest that orientation and location of a visually presented object are automatically integrated, even when subjects are unaware of that object. We conclude that binding and consciousness share a less intimate relationship than previously hypothesized, since consciousness is not a necessary condition for binding to occur.