Complexity-Based Analysis of the Difference Between Normal Subjects and Subjects with Stuttering in Speech Evoked Auditory Brainstem Response

Complexity-Based Analysis of the Difference Between Normal Subjects and Subjects with Stuttering... Deficits in auditory processing are an assumed underlying mechanism in stuttering. Previous studies have demonstrated that speech evoked auditory brainstem response (s-ABR) is a reliable method to evaluate brainstem timing in clinical popula- tions with persistent developmental stuttering (PDS). The examination of s-ABR signals to quantify differential complexi - ties between PDS and normal subjects using linear analysis is unreliable. This prompted us to evaluate non-linear methods, which are more effective for conveying complex dynamics. The aim of the current study is to apply fractal dimension and the Hurst exponent to s-ABR signals in order to identify complexity differences between PDS and normal subjects who were stimulated with the synthetic/da/stimulus. Analysis of scaling exponents showed a statistically significant difference between the two groups. The s-ABR signal in subjects with stuttering becomes more complex due to stimulation. These findings are discussed in terms of dysfunctional sub-cortical activation in PDS populations. Keywords Speech evoked auditory brainstem response (s-ABR) · Persistent developmental stuttering (PDS) · Fractal dimension · Hurst exponent · Complexity 1 Introduction has been demonstrated in the subcortical regions and the auditory and motor areas related to stuttering [8, 9]. Mag- Stuttering is a speech dysfluency characterized by inter - netoencephalography (MEG) and imaging http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Medical and Biological Engineering Springer Journals

Complexity-Based Analysis of the Difference Between Normal Subjects and Subjects with Stuttering in Speech Evoked Auditory Brainstem Response

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Taiwanese Society of Biomedical Engineering
Subject
Engineering; Biomedical Engineering; Cell Biology; Imaging / Radiology
ISSN
1609-0985
eISSN
2199-4757
D.O.I.
10.1007/s40846-018-0430-x
Publisher site
See Article on Publisher Site

Abstract

Deficits in auditory processing are an assumed underlying mechanism in stuttering. Previous studies have demonstrated that speech evoked auditory brainstem response (s-ABR) is a reliable method to evaluate brainstem timing in clinical popula- tions with persistent developmental stuttering (PDS). The examination of s-ABR signals to quantify differential complexi - ties between PDS and normal subjects using linear analysis is unreliable. This prompted us to evaluate non-linear methods, which are more effective for conveying complex dynamics. The aim of the current study is to apply fractal dimension and the Hurst exponent to s-ABR signals in order to identify complexity differences between PDS and normal subjects who were stimulated with the synthetic/da/stimulus. Analysis of scaling exponents showed a statistically significant difference between the two groups. The s-ABR signal in subjects with stuttering becomes more complex due to stimulation. These findings are discussed in terms of dysfunctional sub-cortical activation in PDS populations. Keywords Speech evoked auditory brainstem response (s-ABR) · Persistent developmental stuttering (PDS) · Fractal dimension · Hurst exponent · Complexity 1 Introduction has been demonstrated in the subcortical regions and the auditory and motor areas related to stuttering [8, 9]. Mag- Stuttering is a speech dysfluency characterized by inter - netoencephalography (MEG) and imaging

Journal

Journal of Medical and Biological EngineeringSpringer Journals

Published: Jun 1, 2018

References

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