Magnetoencephalographic study of the cortical activity elicited by human voice

Atsuko Gunji; Sachiko Koyama; Ryouhei Ishii; Daniel Levy; Hidehiko Okamoto; Ryusuke Kakigi; Christo Pantev

doi:10.1016/s0304-3940(03)00640-2

Magnetoencephalographic study of the cortical activity elicited by human voice

Atsuko Gunji, Sachiko Koyama, Ryouhei Ishii, Daniel Levy, Hidehiko Okamoto, Ryusuke Kakigi, Christo Pantev

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

In an attempt to identify voice-specific neural activities in auditory cortex in humans, we recorded cortical magnetic responses. Volunteers were instructed to listen to vocal and instrumental sounds matched in fundamental-frequency, duration, temporal envelope and average root mean square power. The stimuli were sounds produced by four singers and four musical instruments at each of two fundamental frequencies: 220 Hz (musical note A3) and 261.9 Hz (C3). Two components of the evoked responses were analyzed, one at approximately 100 ms (N1m) and the other 400 ms after the stimulus onset (sustained field, SF). The source locations of equivalent current dipoles for both components were estimated around the Heschl's gyrus in both hemispheres. Compared with the instrumental sound, the source strength of the SF component for the voice was significantly larger.

Original language	English
Pages (from-to)	13-16
Number of pages	4
Journal	Neuroscience Letters
Volume	348
Issue number	1
DOIs	https://doi.org/10.1016/s0304-3940(03)00640-2
State	Published - 4 Sep 2003
Externally published	Yes

Bibliographical note

Funding Information:
This study was supported by the CIHR, the Ontario Innovation Trust and the Canadian Foundation for Innovation, a Grant-in-Aid for Scientific Research (07335), and the Ministry of Public Management, Home Affairs, Posts and Telecommunications, Japan and the Support Center for Advanced Telecommunications Technology Research, Foundation ‘Break Through 21’. We would like to thank Dr Herdman for suggestions.

Funding

This study was supported by the CIHR, the Ontario Innovation Trust and the Canadian Foundation for Innovation, a Grant-in-Aid for Scientific Research (07335), and the Ministry of Public Management, Home Affairs, Posts and Telecommunications, Japan and the Support Center for Advanced Telecommunications Technology Research, Foundation ‘Break Through 21’. We would like to thank Dr Herdman for suggestions.

Funders	Funder number
Ministry of Public Management, Home Affairs, Posts and Telecommunications
Ontario Innovation Trust
Canadian Institutes of Health Research
Canada Foundation for Innovation	07335
Support Center for Advanced Telecommunications Technology Research Foundation

Keywords

Auditory cortex
Auditory evoked magnetic field
Magnetoencephalography
Musical instruments
Sustained field
Voice

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10.1016/s0304-3940(03)00640-2

Cite this

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abstract = "In an attempt to identify voice-specific neural activities in auditory cortex in humans, we recorded cortical magnetic responses. Volunteers were instructed to listen to vocal and instrumental sounds matched in fundamental-frequency, duration, temporal envelope and average root mean square power. The stimuli were sounds produced by four singers and four musical instruments at each of two fundamental frequencies: 220 Hz (musical note A3) and 261.9 Hz (C3). Two components of the evoked responses were analyzed, one at approximately 100 ms (N1m) and the other 400 ms after the stimulus onset (sustained field, SF). The source locations of equivalent current dipoles for both components were estimated around the Heschl's gyrus in both hemispheres. Compared with the instrumental sound, the source strength of the SF component for the voice was significantly larger.",

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AU - Kakigi, Ryusuke

AU - Pantev, Christo

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Magnetoencephalographic study of the cortical activity elicited by human voice

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