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Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets

Travelling waves are the physical basis of frequency discrimination in many vertebrate and invertebrate taxa, including mammals, birds, and some insects. In bushcrickets (Tettigoniidae), the crista acustica is the hearing organ that has been shown to use sound-induced travelling waves. Up to now, da...

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Detalles Bibliográficos
Autores principales: Palghat Udayashankar, Arun, Kössl, Manfred, Nowotny, Manuela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3897617/
https://www.ncbi.nlm.nih.gov/pubmed/24465889
http://dx.doi.org/10.1371/journal.pone.0086090
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author Palghat Udayashankar, Arun
Kössl, Manfred
Nowotny, Manuela
author_facet Palghat Udayashankar, Arun
Kössl, Manfred
Nowotny, Manuela
author_sort Palghat Udayashankar, Arun
collection PubMed
description Travelling waves are the physical basis of frequency discrimination in many vertebrate and invertebrate taxa, including mammals, birds, and some insects. In bushcrickets (Tettigoniidae), the crista acustica is the hearing organ that has been shown to use sound-induced travelling waves. Up to now, data on mechanical characteristics of sound-induced travelling waves were only available along the longitudinal (proximal-distal) direction. In this study, we use laser Doppler vibrometry to investigate in-vivo radial (anterior-posterior) features of travelling waves in the tropical bushcricket Mecopoda elongata. Our results demonstrate that the maximum of sound-induced travelling wave amplitude response is always shifted towards the anterior part of the crista acustica. This lateralization of the travelling wave response induces a tilt in the motion of the crista acustica, which presumably optimizes sensory transduction by exerting a shear motion on the sensory cilia in this hearing organ.
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spelling pubmed-38976172014-01-24 Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets Palghat Udayashankar, Arun Kössl, Manfred Nowotny, Manuela PLoS One Research Article Travelling waves are the physical basis of frequency discrimination in many vertebrate and invertebrate taxa, including mammals, birds, and some insects. In bushcrickets (Tettigoniidae), the crista acustica is the hearing organ that has been shown to use sound-induced travelling waves. Up to now, data on mechanical characteristics of sound-induced travelling waves were only available along the longitudinal (proximal-distal) direction. In this study, we use laser Doppler vibrometry to investigate in-vivo radial (anterior-posterior) features of travelling waves in the tropical bushcricket Mecopoda elongata. Our results demonstrate that the maximum of sound-induced travelling wave amplitude response is always shifted towards the anterior part of the crista acustica. This lateralization of the travelling wave response induces a tilt in the motion of the crista acustica, which presumably optimizes sensory transduction by exerting a shear motion on the sensory cilia in this hearing organ. Public Library of Science 2014-01-21 /pmc/articles/PMC3897617/ /pubmed/24465889 http://dx.doi.org/10.1371/journal.pone.0086090 Text en © 2014 Palghat Udayashankar et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Palghat Udayashankar, Arun
Kössl, Manfred
Nowotny, Manuela
Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title_full Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title_fullStr Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title_full_unstemmed Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title_short Lateralization of Travelling Wave Response in the Hearing Organ of Bushcrickets
title_sort lateralization of travelling wave response in the hearing organ of bushcrickets
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3897617/
https://www.ncbi.nlm.nih.gov/pubmed/24465889
http://dx.doi.org/10.1371/journal.pone.0086090
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