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Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats
Mammalian vocalizations exhibit large variations in their spectrotemporal features, although it is still largely unknown which result from intrinsic biomechanical properties of the larynx and which are under direct neuromuscular control. Here we show that mere changes in laryngeal air flow yield sev...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2012
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552533/ https://www.ncbi.nlm.nih.gov/pubmed/23149729 http://dx.doi.org/10.1038/ncomms2165 |
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author | Kobayasi, Kohta I. Hage, Steffen R. Berquist, Sean Feng, Jiang Zhang, Shuyi Metzner, Walter |
author_facet | Kobayasi, Kohta I. Hage, Steffen R. Berquist, Sean Feng, Jiang Zhang, Shuyi Metzner, Walter |
author_sort | Kobayasi, Kohta I. |
collection | PubMed |
description | Mammalian vocalizations exhibit large variations in their spectrotemporal features, although it is still largely unknown which result from intrinsic biomechanical properties of the larynx and which are under direct neuromuscular control. Here we show that mere changes in laryngeal air flow yield several non-linear effects on sound production, in an isolated larynx preparation from horseshoe bats. Most notably, there are sudden jumps between two frequency bands used for either echolocation or communication in natural vocalizations. These jumps resemble changes in “registers” as in yodelling. In contrast, simulated contractions of the main larynx muscle produce linear frequency changes, but are limited to echolocation or communication frequencies. Only by combining non-linear and linear properties can this larynx therefore produce sounds covering the entire frequency range of natural calls. This may give behavioural meaning to yodelling-like vocal behaviour and reshape our thinking about how the brain controls the multitude of spectral vocal features in mammals. |
format | Online Article Text |
id | pubmed-3552533 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
record_format | MEDLINE/PubMed |
spelling | pubmed-35525332013-05-13 Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats Kobayasi, Kohta I. Hage, Steffen R. Berquist, Sean Feng, Jiang Zhang, Shuyi Metzner, Walter Nat Commun Article Mammalian vocalizations exhibit large variations in their spectrotemporal features, although it is still largely unknown which result from intrinsic biomechanical properties of the larynx and which are under direct neuromuscular control. Here we show that mere changes in laryngeal air flow yield several non-linear effects on sound production, in an isolated larynx preparation from horseshoe bats. Most notably, there are sudden jumps between two frequency bands used for either echolocation or communication in natural vocalizations. These jumps resemble changes in “registers” as in yodelling. In contrast, simulated contractions of the main larynx muscle produce linear frequency changes, but are limited to echolocation or communication frequencies. Only by combining non-linear and linear properties can this larynx therefore produce sounds covering the entire frequency range of natural calls. This may give behavioural meaning to yodelling-like vocal behaviour and reshape our thinking about how the brain controls the multitude of spectral vocal features in mammals. 2012 /pmc/articles/PMC3552533/ /pubmed/23149729 http://dx.doi.org/10.1038/ncomms2165 Text en Users may view, print, copy, download and text and data- mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: http://www.nature.com/authors/editorial_policies/license.html#terms |
spellingShingle | Article Kobayasi, Kohta I. Hage, Steffen R. Berquist, Sean Feng, Jiang Zhang, Shuyi Metzner, Walter Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title | Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title_full | Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title_fullStr | Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title_full_unstemmed | Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title_short | Behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
title_sort | behavioural and neurobiological implications of linear and non-linear features in larynx phonations of horseshoe bats |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3552533/ https://www.ncbi.nlm.nih.gov/pubmed/23149729 http://dx.doi.org/10.1038/ncomms2165 |
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