Distinct higher-order representations of natural sounds in human and ferret auditory cortex

Little is known about how neural representations of natural sounds differ across species. For example, speech and music play a unique role in human hearing, yet it is unclear how auditory representations of speech and music differ between humans and other animals. Using functional ultrasound imaging...

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Autores principales:	Agnès Landemard, Célian Bimbard, Charlie Demené, Shihab Shamma, Sam Norman-Haignere, Yves Boubenec
Formato:	article
Lenguaje:	EN
Publicado:	eLife Sciences Publications Ltd 2021
Materias:	auditory cortex natural sounds functional ultrasound imaging vocalizations sensory coding Medicine R Science Q Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/b3fadbe0281d41928a5863dfb0df3935
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spelling	oai:doaj.org-article:b3fadbe0281d41928a5863dfb0df39352021-11-18T12:51:27ZDistinct higher-order representations of natural sounds in human and ferret auditory cortex10.7554/eLife.655662050-084Xe65566https://doaj.org/article/b3fadbe0281d41928a5863dfb0df39352021-11-01T00:00:00Zhttps://elifesciences.org/articles/65566https://doaj.org/toc/2050-084XLittle is known about how neural representations of natural sounds differ across species. For example, speech and music play a unique role in human hearing, yet it is unclear how auditory representations of speech and music differ between humans and other animals. Using functional ultrasound imaging, we measured responses in ferrets to a set of natural and spectrotemporally matched synthetic sounds previously tested in humans. Ferrets showed similar lower-level frequency and modulation tuning to that observed in humans. But while humans showed substantially larger responses to natural vs. synthetic speech and music in non-primary regions, ferret responses to natural and synthetic sounds were closely matched throughout primary and non-primary auditory cortex, even when tested with ferret vocalizations. This finding reveals that auditory representations in humans and ferrets diverge sharply at late stages of cortical processing, potentially driven by higher-order processing demands in speech and music.Agnès LandemardCélian BimbardCharlie DemenéShihab ShammaSam Norman-HaignereYves BoubeneceLife Sciences Publications Ltdarticleauditory cortexnatural soundsfunctional ultrasound imagingvocalizationssensory codingMedicineRScienceQBiology (General)QH301-705.5ENeLife, Vol 10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	auditory cortex natural sounds functional ultrasound imaging vocalizations sensory coding Medicine R Science Q Biology (General) QH301-705.5
spellingShingle	auditory cortex natural sounds functional ultrasound imaging vocalizations sensory coding Medicine R Science Q Biology (General) QH301-705.5 Agnès Landemard Célian Bimbard Charlie Demené Shihab Shamma Sam Norman-Haignere Yves Boubenec Distinct higher-order representations of natural sounds in human and ferret auditory cortex
description	Little is known about how neural representations of natural sounds differ across species. For example, speech and music play a unique role in human hearing, yet it is unclear how auditory representations of speech and music differ between humans and other animals. Using functional ultrasound imaging, we measured responses in ferrets to a set of natural and spectrotemporally matched synthetic sounds previously tested in humans. Ferrets showed similar lower-level frequency and modulation tuning to that observed in humans. But while humans showed substantially larger responses to natural vs. synthetic speech and music in non-primary regions, ferret responses to natural and synthetic sounds were closely matched throughout primary and non-primary auditory cortex, even when tested with ferret vocalizations. This finding reveals that auditory representations in humans and ferrets diverge sharply at late stages of cortical processing, potentially driven by higher-order processing demands in speech and music.
format	article
author	Agnès Landemard Célian Bimbard Charlie Demené Shihab Shamma Sam Norman-Haignere Yves Boubenec
author_facet	Agnès Landemard Célian Bimbard Charlie Demené Shihab Shamma Sam Norman-Haignere Yves Boubenec
author_sort	Agnès Landemard
title	Distinct higher-order representations of natural sounds in human and ferret auditory cortex
title_short	Distinct higher-order representations of natural sounds in human and ferret auditory cortex
title_full	Distinct higher-order representations of natural sounds in human and ferret auditory cortex
title_fullStr	Distinct higher-order representations of natural sounds in human and ferret auditory cortex
title_full_unstemmed	Distinct higher-order representations of natural sounds in human and ferret auditory cortex
title_sort	distinct higher-order representations of natural sounds in human and ferret auditory cortex
publisher	eLife Sciences Publications Ltd
publishDate	2021
url	https://doaj.org/article/b3fadbe0281d41928a5863dfb0df3935
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_version_	1718420865989738496

Distinct higher-order representations of natural sounds in human and ferret auditory cortex

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