Active head rolls enhance sonar-based auditory localization performance
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Published:2021-05-10
Issue:5
Volume:17
Page:e1008973
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ISSN:1553-7358
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Container-title:PLOS Computational Biology
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language:en
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Short-container-title:PLoS Comput Biol
Author:
Wijesinghe Lakshitha P.ORCID,
Wohlgemuth Melville J.ORCID,
So Richard H. Y.ORCID,
Triesch JochenORCID,
Moss Cynthia F.ORCID,
Shi Bertram E.ORCID
Abstract
Animals utilize a variety of active sensing mechanisms to perceive the world around them. Echolocating bats are an excellent model for the study of active auditory localization. The big brown bat (Eptesicus fuscus), for instance, employs active head roll movements during sonar prey tracking. The function of head rolls in sound source localization is not well understood. Here, we propose an echolocation model with multi-axis head rotation to investigate the effect of active head roll movements on sound localization performance. The model autonomously learns to align the bat’s head direction towards the target. We show that a model with active head roll movements better localizes targets than a model without head rolls. Furthermore, we demonstrate that active head rolls also reduce the time required for localization in elevation. Finally, our model offers key insights to sound localization cues used by echolocating bats employing active head movements during echolocation.
Funder
Hong Kong Research Grants Council
National Science Foundation
Air Force Office of Scientific Research
Office of Naval Research
National Institute on Deafness and Other Communication Disorders
Publisher
Public Library of Science (PLoS)
Subject
Computational Theory and Mathematics,Cellular and Molecular Neuroscience,Genetics,Molecular Biology,Ecology,Modeling and Simulation,Ecology, Evolution, Behavior and Systematics
Cited by
1 articles.
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