Auditory-motor adaptation is reduced in adults who stutter but not in children who stutter

Ayoub Daliri, Elizabeth A. Wieland, Shanqing Cai, Frank H. Guenther, Soo Eun Chang

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Previous studies have shown that adults who stutter produce smaller corrective motor responses to compensate for unexpected auditory perturbations in comparison to adults who do not stutter, suggesting that stuttering may be associated with deficits in integration of auditory feedback for online speech monitoring. In this study, we examined whether stuttering is also associated with deficiencies in integrating and using discrepancies between expected and received auditory feedback to adaptively update motor programs for accurate speech production. Using a sensorimotor adaptation paradigm, we measured adaptive speech responses to auditory formant frequency perturbations in adults and children who stutter and their matched nonstuttering controls. We found that the magnitude of the speech adaptive response for children who stutter did not differ from that of fluent children. However, the adaptation magnitude of adults who stutter in response to auditory perturbation was significantly smaller than the adaptation magnitude of adults who do not stutter. Together these results indicate that stuttering is associated with deficits in integrating discrepancies between predicted and received auditory feedback to calibrate the speech production system in adults but not children. This auditory-motor integration deficit thus appears to be a compensatory effect that develops over years of stuttering.

Original languageEnglish
Article numbere12521
JournalDevelopmental Science
Volume21
Issue number2
DOIs
StatePublished - Mar 2018

Bibliographical note

Publisher Copyright:
© 2017 John Wiley & Sons Ltd

Fingerprint

Dive into the research topics of 'Auditory-motor adaptation is reduced in adults who stutter but not in children who stutter'. Together they form a unique fingerprint.

Cite this