Detection of Gap and Modulations: Auditory Temporal Resolution Deficits in Adults Who Stutter

Dhatri S Devaraju; Santosh Maruthy; Ajith U Kumar

doi:10.1159/000499565

Detection of Gap and Modulations: Auditory Temporal Resolution Deficits in Adults Who Stutter

Folia Phoniatr Logop. 2020;72(1):13-21. doi: 10.1159/000499565. Epub 2019 May 27.

Authors

Dhatri S Devaraju¹, Santosh Maruthy², Ajith U Kumar³

Affiliations

¹ Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysuru, India, dhatri2612@gmail.com.
² Department of Speech Language Sciences, All India Institute of Speech and Hearing, Manasagangothri, Mysuru, India.
³ Department of Audiology, All India Institute of Speech and Hearing, Manasagangothri, Mysuru, India.

PMID: 31132766
DOI: 10.1159/000499565

Abstract

Background: Recent models of speech production suggest a link between speech production and perception. Persons with stuttering are known to have deficits in sensorimotor timing and exhibit auditory processing problems. Most of the earlier studies have focused on assessing temporal ordering in adults who stutter (AWS), but limited attempts have been made to document temporal resolution abilities in AWS.

Methods: A group of 16 AWS and 16 age- and gender-matched adults who do not stutter (AWNS) were recruited for the study. Temporal resolution abilities were assessed using the Gap Detection Test and temporal modulation transfer function (TMTF).

Results: The results revealed significant differences in TMTF between AWS and AWNS, but no differences were found in the gap detection thresholds.

Conclusions: Results suggest that the sensory representations of the temporal modulations are compromised in AWS, which may contribute to the programming of rhythmic movements during speech planning.

Keywords: Audiology; Hearing; Speech perception; Stuttering.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Adult
Auditory Perception
Humans
Movement
Speech
Stuttering* / diagnosis