The Harmonic Organization of Auditory Cortex

A fundamental structure of sounds encountered in the natural environment is the harmonicity. Harmonicity is an essential component of music found in all cultures. It is also a unique feature of vocal communication sounds such as human speech and animal vocalizations. Harmonics in sounds are produced...

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Main Author: Xiaoqin eWang
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-12-01
Series:Frontiers in Systems Neuroscience
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fnsys.2013.00114/full
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author Xiaoqin eWang
Xiaoqin eWang
author_facet Xiaoqin eWang
Xiaoqin eWang
author_sort Xiaoqin eWang
collection DOAJ
description A fundamental structure of sounds encountered in the natural environment is the harmonicity. Harmonicity is an essential component of music found in all cultures. It is also a unique feature of vocal communication sounds such as human speech and animal vocalizations. Harmonics in sounds are produced by a variety of acoustic generators and reflectors in the natural environment, including vocal apparatuses of humans and animal species as well as music instruments of many types. We live in an acoustic world full of harmonicity. Given the widespread existence of the harmonicity in many aspects of the hearing environment, it is natural to expect that it be reflected in the evolution and development of the auditory systems of both humans and animals, in particular the auditory cortex. Recent neuroimaging and neurophysiology experiments have identified regions of non-primary auditory cortex in humans and non-human primates that have selective responses to harmonic pitches. Accumulating evidence has also shown that neurons in many regions of the auditory cortex exhibit characteristic responses to harmonically related frequencies beyond the range of pitch. Together, these findings suggest that a fundamental organizational principle of auditory cortex is based on the harmonicity. Such an organization likely plays an important role in music processing by the brain. It may also form the basis of the preference for particular classes of music and voice sounds.
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spelling doaj.art-a3940ef733fd4394857b0bc7565f77a52022-12-21T18:22:02ZengFrontiers Media S.A.Frontiers in Systems Neuroscience1662-51372013-12-01710.3389/fnsys.2013.0011462969The Harmonic Organization of Auditory CortexXiaoqin eWang0Xiaoqin eWang1Johns Hopkins UniversityTsinghua UniversityA fundamental structure of sounds encountered in the natural environment is the harmonicity. Harmonicity is an essential component of music found in all cultures. It is also a unique feature of vocal communication sounds such as human speech and animal vocalizations. Harmonics in sounds are produced by a variety of acoustic generators and reflectors in the natural environment, including vocal apparatuses of humans and animal species as well as music instruments of many types. We live in an acoustic world full of harmonicity. Given the widespread existence of the harmonicity in many aspects of the hearing environment, it is natural to expect that it be reflected in the evolution and development of the auditory systems of both humans and animals, in particular the auditory cortex. Recent neuroimaging and neurophysiology experiments have identified regions of non-primary auditory cortex in humans and non-human primates that have selective responses to harmonic pitches. Accumulating evidence has also shown that neurons in many regions of the auditory cortex exhibit characteristic responses to harmonically related frequencies beyond the range of pitch. Together, these findings suggest that a fundamental organizational principle of auditory cortex is based on the harmonicity. Such an organization likely plays an important role in music processing by the brain. It may also form the basis of the preference for particular classes of music and voice sounds.http://journal.frontiersin.org/Journal/10.3389/fnsys.2013.00114/fullAuditory CortexMusicpitchmarmosetharmonicity
spellingShingle Xiaoqin eWang
Xiaoqin eWang
The Harmonic Organization of Auditory Cortex
Frontiers in Systems Neuroscience
Auditory Cortex
Music
pitch
marmoset
harmonicity
title The Harmonic Organization of Auditory Cortex
title_full The Harmonic Organization of Auditory Cortex
title_fullStr The Harmonic Organization of Auditory Cortex
title_full_unstemmed The Harmonic Organization of Auditory Cortex
title_short The Harmonic Organization of Auditory Cortex
title_sort harmonic organization of auditory cortex
topic Auditory Cortex
Music
pitch
marmoset
harmonicity
url http://journal.frontiersin.org/Journal/10.3389/fnsys.2013.00114/full
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