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Vocal Hyperfunction: Feasibility of ...

Huo, Chuanbing.

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Vocal Hyperfunction: Feasibility of Testing Cepstral Peak Prominence and H1-H2 for Voice Ambulatory Biofeedback.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Vocal Hyperfunction: Feasibility of Testing Cepstral Peak Prominence and H1-H2 for Voice Ambulatory Biofeedback./
Author:	Huo, Chuanbing.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	29 p.
Notes:	Source: Masters Abstracts International, Volume: 82-02.
Contained By:	Masters Abstracts International82-02.
Subject:	Speech therapy. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28025964
ISBN:	9798662450172

Vocal Hyperfunction: Feasibility of Testing Cepstral Peak Prominence and H1-H2 for Voice Ambulatory Biofeedback.
Huo, Chuanbing.

Vocal Hyperfunction: Feasibility of Testing Cepstral Peak Prominence and H1-H2 for Voice Ambulatory Biofeedback. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 29 p.

Source: Masters Abstracts International, Volume: 82-02.

Thesis (M.S.)--MGH Institute of Health Professions, 2020.

This item must not be sold to any third party vendors.

Purpose: Providing ambulatory voice biofeedback to patients with vocal hyperfunction has potential to improve voice therapy effectiveness through reinforcing carryover of therapeutic behaviors in daily life. However, traditional biofeedback parameters include vocal intensity (neck-skin acceleration magnitude/NSAM) and fundamental frequency (fo), which are indirectly related to the underlying putative pathological hyperfunctional behavior. Therefore, this study evaluates the feasibility of using newer measures for ambulatory biofeedback that are more closely associated with the physiology (H1-H2) and quality (Cepstral Peak Prominence/CPP) of voicing.Method: Two patients, one with phonotraumatic vocal hyperfunction (PVH) and another with non-phonotraumatic vocal hyperfunction (NPVH), were monitored with an accelerometer-based ambulatory voice monitor for a week before therapy, during most therapy sessions, and a week after completing voice therapy. Thresholds for NSAM, fo, CPP and H1-H2 were established based on perceptual labels of baseline and improved voicing during voice therapy. The simulated thresholds were then tested with the ambulatory data to see if they generalized to voice use in daily life.Results: For the patient with PVH, all four features discriminated between baseline and improved voicing (Odd's Ratios/OR > 3.0), but only CPP generalized to the ambulatory data (OR > 2.3). For the patient with NPVH, three features (fo, CPP and H1-H2) discriminated between baseline and improved (OR > 2.0), and all three generalized to the ambulatory data (OR > 3.0).Conclusions: In these two case studies, the thresholds for CPP and H1-H2 from the therapy data demonstrated better generalization to the week of ambulatory monitoring before and after successful voice therapy than the thresholds for NSAM and fo. Future work could use more standardized procedures to acquire voicing data and use data-driven methods to derive biofeedback thresholds with multiple features at once.

ISBN: 9798662450172Subjects--Topical Terms:

520446
Speech therapy.
Subjects--Index Terms:

Ambulatory

Vocal Hyperfunction: Feasibility of Testing Cepstral Peak Prominence and H1-H2 for Voice Ambulatory Biofeedback.
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500 $a Source: Masters Abstracts International, Volume: 82-02.
500 $a Advisor: Stan, Jarrad Van.
502 $a Thesis (M.S.)--MGH Institute of Health Professions, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a Purpose: Providing ambulatory voice biofeedback to patients with vocal hyperfunction has potential to improve voice therapy effectiveness through reinforcing carryover of therapeutic behaviors in daily life. However, traditional biofeedback parameters include vocal intensity (neck-skin acceleration magnitude/NSAM) and fundamental frequency (fo), which are indirectly related to the underlying putative pathological hyperfunctional behavior. Therefore, this study evaluates the feasibility of using newer measures for ambulatory biofeedback that are more closely associated with the physiology (H1-H2) and quality (Cepstral Peak Prominence/CPP) of voicing.Method: Two patients, one with phonotraumatic vocal hyperfunction (PVH) and another with non-phonotraumatic vocal hyperfunction (NPVH), were monitored with an accelerometer-based ambulatory voice monitor for a week before therapy, during most therapy sessions, and a week after completing voice therapy. Thresholds for NSAM, fo, CPP and H1-H2 were established based on perceptual labels of baseline and improved voicing during voice therapy. The simulated thresholds were then tested with the ambulatory data to see if they generalized to voice use in daily life.Results: For the patient with PVH, all four features discriminated between baseline and improved voicing (Odd's Ratios/OR > 3.0), but only CPP generalized to the ambulatory data (OR > 2.3). For the patient with NPVH, three features (fo, CPP and H1-H2) discriminated between baseline and improved (OR > 2.0), and all three generalized to the ambulatory data (OR > 3.0).Conclusions: In these two case studies, the thresholds for CPP and H1-H2 from the therapy data demonstrated better generalization to the week of ambulatory monitoring before and after successful voice therapy than the thresholds for NSAM and fo. Future work could use more standardized procedures to acquire voicing data and use data-driven methods to derive biofeedback thresholds with multiple features at once.
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