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          Institute: MPI für Psycholinguistik     Collection: Yearbook 2011     Display Documents



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ID: 555315.0, MPI für Psycholinguistik / Yearbook 2011
The effect of delayed auditory feedback on activity in the temporal lobe while speaking: A Positron Emission Tomography study
Authors:Takaso, Hideki; Eisner, Frank; Wise, Richard J. S.; Scott, Sophie K.
Language:English
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Journal of Speech, Language, and Hearing Research
Journal Abbrev.:J Speech Lang Hear Res
Volume:53
Start Page:226
End Page:236
Review Status:Peer-review
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Purpose: Delayed auditory feedback is a technique that can improve fluency in stutterers, while disrupting fluency in many non-stuttering individuals. The aim of this study was to determine the neural basis for the detection of and compensation for such a delay, and the effects of increases in the delay duration. Method: Positron emission tomography (PET) was used to image regional cerebral blood flow changes, an index of neural activity, and assessed the influence of increasing amounts of delay. Results: Delayed auditory feedback led to increased activation in the bilateral superior temporal lobes, extending into posterior-medial auditory areas. Similar peaks in the temporal lobe were sensitive to increases in the amount of delay. A single peak in the temporal parietal junction responded to the amount of delay but not to the presence of a delay (relative to no delay). Conclusions: This study permitted distinctions to be made between the neural response to hearing one's voice at a delay, and the neural activity that correlates with this delay. Notably all the peaks showed some influence of the amount of delay. This result confirms a role for the posterior, sensori-motor ‘how’ system in the production of speech under conditions of delayed auditory feedback.
External Publication Status:published
Document Type:Article
Communicated by:Karin Kastens
Affiliations:MPI für Psycholinguistik
External Affiliations:External Organizations
Identifiers:URL:http://pubman.mpdl.mpg.de/pubman/item/escidoc:1026...
DOI:10.1044/1092-4388(2009/09-0009)
LOCALID:escidoc:102669
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