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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
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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. |
format | Online Article Text |
id | pubmed-3897617 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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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