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Evidence for a system in the auditory periphery that may contribute to linking sounds and images in space

View ORCID ProfileDavid LK Murphy, Cynthia D King, Stephanie N Schlebusch, View ORCID ProfileChristopher A Shera, View ORCID ProfileJennifer M Groh
doi: https://doi.org/10.1101/2020.07.19.210864
David LK Murphy
1Department of Psychology and Neuroscience, Duke University
3Center for Cognitive Neuroscience, Duke University
4Duke Institute for Brain Sciences, Duke University
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Cynthia D King
1Department of Psychology and Neuroscience, Duke University
2Department of Neurobiology, Duke University
3Center for Cognitive Neuroscience, Duke University
4Duke Institute for Brain Sciences, Duke University
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Stephanie N Schlebusch
1Department of Psychology and Neuroscience, Duke University
2Department of Neurobiology, Duke University
3Center for Cognitive Neuroscience, Duke University
4Duke Institute for Brain Sciences, Duke University
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Christopher A Shera
7Dept. of Otolaryngology, University of Southern California
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Jennifer M Groh
1Department of Psychology and Neuroscience, Duke University
2Department of Neurobiology, Duke University
3Center for Cognitive Neuroscience, Duke University
4Duke Institute for Brain Sciences, Duke University
5Department of Computer Science, Duke University
6Department of Biomedical Engineering, Duke University
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  • For correspondence: jmgroh@duke.edu
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Abstract

Eye movements alter the relationship between the visual and auditory spatial scenes. Signals related to eye movements affect the brain’s auditory pathways from the ear through auditory cortex and beyond, but how these signals might contribute to computing the locations of sounds with respect to the visual scene is poorly understood. Here, we evaluated the information contained in the signals observed at the earliest processing stage, eye movement-related eardrum oscillations (EMREOs). We report that human EMREOs carry information about both horizontal and vertical eye displacement as well as initial/final eye position. We conclude that all of the information necessary to contribute to a suitable coordinate transformation of auditory spatial cues into a common reference frame with visual information is present in this signal. We hypothesize that the underlying mechanism causing EMREOs could impose a transfer function on any incoming sound signal, which could permit subsequent processing stages to compute the positions of sounds in relation to the visual scene.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted July 19, 2020.
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Evidence for a system in the auditory periphery that may contribute to linking sounds and images in space
David LK Murphy, Cynthia D King, Stephanie N Schlebusch, Christopher A Shera, Jennifer M Groh
bioRxiv 2020.07.19.210864; doi: https://doi.org/10.1101/2020.07.19.210864
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Evidence for a system in the auditory periphery that may contribute to linking sounds and images in space
David LK Murphy, Cynthia D King, Stephanie N Schlebusch, Christopher A Shera, Jennifer M Groh
bioRxiv 2020.07.19.210864; doi: https://doi.org/10.1101/2020.07.19.210864

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