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Non-Conscious Processing of Motion Coherence Can Boost Conscious Access

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posted on 2015-07-14, 13:05 authored by L. N. Kaunitz, A. Fracasso, A. Lingnau, D. Melcher
Research on the scope and limits of non-conscious vision can advance our understanding of the functional and neural underpinnings of visual awareness. Here we investigated whether distributed local features can be bound, outside of awareness, into coherent patterns. We used continuous flash suppression (CFS) to create interocular suppression, and thus lack of awareness, for a moving dot stimulus that varied in terms of coherence with an overall pattern (radial flow). Our results demonstrate that for radial motion, coherence favors the detection of patterns of moving dots even under interocular suppression. Coherence caused dots to break through the masks more often: this indicates that the visual system was able to integrate low-level motion signals into a coherent pattern outside of visual awareness. In contrast, in an experiment using meaningful or scrambled biological motion we did not observe any increase in the sensitivity of detection for meaningful patterns. Overall, our results are in agreement with previous studies on face processing and with the hypothesis that certain features are spatiotemporally bound into coherent patterns even outside of attention or awareness.

History

Citation

PLoS One, 2013, 8 (4), pp. e60787

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

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  • VoR (Version of Record)

Published in

PLoS One

Publisher

Public Library of Science

issn

1932-6203

Acceptance date

2013-03-02

Copyright date

2013

Available date

2015-07-14

Publisher version

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0060787

Language

en

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