Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment

Abstract Dolphins use their biosonar to discriminate objects with different features through the returning echoes. Cross-modal matching experiments were conducted with a resident bottlenose dolphin (Tursiops aduncus). Four types of objects composed of different materials (water-filled PVC pipes, air...

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Autores principales:	Chong Wei, Matthias Hoffmann-Kuhnt, Whitlow W. L. Au, Abel Zhong Hao Ho, Eszter Matrai, Wen Feng, Darlene R. Ketten, Yu Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2e57b05b1954496f87ad327a2778b2cd
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spelling	oai:doaj.org-article:2e57b05b1954496f87ad327a2778b2cd2021-12-02T16:36:04ZPossible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment10.1038/s41598-021-85063-22045-2322https://doaj.org/article/2e57b05b1954496f87ad327a2778b2cd2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85063-2https://doaj.org/toc/2045-2322Abstract Dolphins use their biosonar to discriminate objects with different features through the returning echoes. Cross-modal matching experiments were conducted with a resident bottlenose dolphin (Tursiops aduncus). Four types of objects composed of different materials (water-filled PVC pipes, air-filled PVC pipes, foam ball arrays, and PVC pipes wrapped in closed-cell foam) were used in the experiments, respectively. The size and position of the objects remained the same in each case. The data collected in the experiment showed that the dolphin’s matching accuracy was significantly different across the cases. To gain insight into the underlying mechanism in the experiments, we used finite element methods to construct two-dimensional target detection models of an echolocating dolphin in the vertical plane, based on computed tomography scan data. The acoustic processes of the click’s interaction with the objects and the surrounding media in the four cases were simulated and compared. The simulation results provide some possible explanations for why the dolphin performed differently when discriminating the objects that only differed in material composition in the previous matching experiments.Chong WeiMatthias Hoffmann-KuhntWhitlow W. L. AuAbel Zhong Hao HoEszter MatraiWen FengDarlene R. KettenYu ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chong Wei Matthias Hoffmann-Kuhnt Whitlow W. L. Au Abel Zhong Hao Ho Eszter Matrai Wen Feng Darlene R. Ketten Yu Zhang Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
description	Abstract Dolphins use their biosonar to discriminate objects with different features through the returning echoes. Cross-modal matching experiments were conducted with a resident bottlenose dolphin (Tursiops aduncus). Four types of objects composed of different materials (water-filled PVC pipes, air-filled PVC pipes, foam ball arrays, and PVC pipes wrapped in closed-cell foam) were used in the experiments, respectively. The size and position of the objects remained the same in each case. The data collected in the experiment showed that the dolphin’s matching accuracy was significantly different across the cases. To gain insight into the underlying mechanism in the experiments, we used finite element methods to construct two-dimensional target detection models of an echolocating dolphin in the vertical plane, based on computed tomography scan data. The acoustic processes of the click’s interaction with the objects and the surrounding media in the four cases were simulated and compared. The simulation results provide some possible explanations for why the dolphin performed differently when discriminating the objects that only differed in material composition in the previous matching experiments.
format	article
author	Chong Wei Matthias Hoffmann-Kuhnt Whitlow W. L. Au Abel Zhong Hao Ho Eszter Matrai Wen Feng Darlene R. Ketten Yu Zhang
author_facet	Chong Wei Matthias Hoffmann-Kuhnt Whitlow W. L. Au Abel Zhong Hao Ho Eszter Matrai Wen Feng Darlene R. Ketten Yu Zhang
author_sort	Chong Wei
title	Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
title_short	Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
title_full	Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
title_fullStr	Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
title_full_unstemmed	Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
title_sort	possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2e57b05b1954496f87ad327a2778b2cd
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Possible limitations of dolphin echolocation: a simulation study based on a cross-modal matching experiment

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