Differential contributions of the two cerebral hemispheres to temporal and spectral speech feedback control

  • Proper speech production requires auditory speech feedback control. Models of speech production associate this function with the right cerebral hemisphere while the left hemisphere is proposed to host speech motor programs. However, previous studies have investigated only spectral perturbations of the auditory speech feedback. Since auditory perception is known to be lateralized, with right-lateralized analysis of spectral features and left-lateralized processing of temporal features, it is unclear whether the observed right-lateralization of auditory speech feedback processing reflects a preference for speech feedback control or for spectral processing in general. Here we use a behavioral speech adaptation experiment with dichotically presented altered auditory feedback and an analogous fMRI experiment with binaurally presented altered feedback to confirm a right hemisphere preference for spectral feedback control and to reveal a left hemisphere preference for temporal feedback control during speaking. These results indicate that auditory feedback control involves both hemispheres with differential contributions along the spectro-temporal axis.
Author:Mareike Floegel, Susanne Fuchs, Christian Alexander KellORCiDGND
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/32503986
Parent Title (English):Nature Communications
Publisher:Nature Publishing Group UK
Place of publication:[London]
Document Type:Article
Year of Completion:2020
Date of first Publication:2020/06/05
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2020/06/10
Tag:Auditory system; Motor control; Sensorimotor processing
Issue:1, Art. 2839
Page Number:12
First Page:1
Last Page:12
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Institutes:Medizin / Medizin
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - Namensnennung 4.0