Two Distinct Auditory-Motor Circuits for Monitoring Speech Production as Revealed by Content-Specific Suppression of Auditory Cortex
(2015) In Cerebral Cortex 25(6). p.1576-1586- Abstract
- Speech production, both overt and covert, down-regulates the activation of auditory cortex. This is thought to be due to forward prediction of the sensory consequences of speech, contributing to a feedback control mechanism for speech production. Critically, however, these regulatory effects should be specific to speech content to enable accurate speech monitoring. To determine the extent to which such forward prediction is content-specific, we recorded the brain's neuromagnetic responses to heard multisyllabic pseudowords during covert rehearsal in working memory, contrasted with a control task. The cortical auditory processing of target syllables was significantly suppressed during rehearsal compared with control, but only when they... (More)
- Speech production, both overt and covert, down-regulates the activation of auditory cortex. This is thought to be due to forward prediction of the sensory consequences of speech, contributing to a feedback control mechanism for speech production. Critically, however, these regulatory effects should be specific to speech content to enable accurate speech monitoring. To determine the extent to which such forward prediction is content-specific, we recorded the brain's neuromagnetic responses to heard multisyllabic pseudowords during covert rehearsal in working memory, contrasted with a control task. The cortical auditory processing of target syllables was significantly suppressed during rehearsal compared with control, but only when they matched the rehearsed items. This critical specificity to speech content enables accurate speech monitoring by forward prediction, as proposed by current models of speech production. The one-to-one phonological motor-to-auditory mappings also appear to serve the maintenance of information in phonological working memory. Further findings of right-hemispheric suppression in the case of whole-item matches and left-hemispheric enhancement for last-syllable mismatches suggest that speech production is monitored by 2 auditory-motor circuits operating on different timescales: Finer grain in the left versus coarser grain in the right hemisphere. Taken together, our findings provide hemisphere-specific evidence of the interface between inner and heard speech. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/7612531
- author
- Ylinen, Sari ; Nora, Anni ; Leminen, Alina ; Hakala, Tero ; Huotilainen, Minna ; Shtyrov, Yury LU ; Makela, Jyrki P. and Service, Elisabet
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- asymmetric speech monitoring, efference copy, forward prediction, magnetoencephalography (MEG), phonological working memory
- in
- Cerebral Cortex
- volume
- 25
- issue
- 6
- pages
- 1576 - 1586
- publisher
- Oxford University Press
- external identifiers
-
- wos:000355665300016
- scopus:84930355265
- pmid:24414279
- ISSN
- 1460-2199
- DOI
- 10.1093/cercor/bht351
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Linguistics and Phonetics (015010003)
- id
- 63eef3e7-9f79-4e93-89d0-9b39739d0b62 (old id 7612531)
- date added to LUP
- 2016-04-01 10:45:17
- date last changed
- 2023-11-10 04:21:25
@article{63eef3e7-9f79-4e93-89d0-9b39739d0b62,
abstract = {{Speech production, both overt and covert, down-regulates the activation of auditory cortex. This is thought to be due to forward prediction of the sensory consequences of speech, contributing to a feedback control mechanism for speech production. Critically, however, these regulatory effects should be specific to speech content to enable accurate speech monitoring. To determine the extent to which such forward prediction is content-specific, we recorded the brain's neuromagnetic responses to heard multisyllabic pseudowords during covert rehearsal in working memory, contrasted with a control task. The cortical auditory processing of target syllables was significantly suppressed during rehearsal compared with control, but only when they matched the rehearsed items. This critical specificity to speech content enables accurate speech monitoring by forward prediction, as proposed by current models of speech production. The one-to-one phonological motor-to-auditory mappings also appear to serve the maintenance of information in phonological working memory. Further findings of right-hemispheric suppression in the case of whole-item matches and left-hemispheric enhancement for last-syllable mismatches suggest that speech production is monitored by 2 auditory-motor circuits operating on different timescales: Finer grain in the left versus coarser grain in the right hemisphere. Taken together, our findings provide hemisphere-specific evidence of the interface between inner and heard speech.}},
author = {{Ylinen, Sari and Nora, Anni and Leminen, Alina and Hakala, Tero and Huotilainen, Minna and Shtyrov, Yury and Makela, Jyrki P. and Service, Elisabet}},
issn = {{1460-2199}},
keywords = {{asymmetric speech monitoring; efference copy; forward prediction; magnetoencephalography (MEG); phonological working memory}},
language = {{eng}},
number = {{6}},
pages = {{1576--1586}},
publisher = {{Oxford University Press}},
series = {{Cerebral Cortex}},
title = {{Two Distinct Auditory-Motor Circuits for Monitoring Speech Production as Revealed by Content-Specific Suppression of Auditory Cortex}},
url = {{http://dx.doi.org/10.1093/cercor/bht351}},
doi = {{10.1093/cercor/bht351}},
volume = {{25}},
year = {{2015}},
}