Immediate Effects of Humming on Computed Electroglottographic Parameters in Patients With Muscle Tension Dysphonia

Ogawa, Makoto; Hosokawa, Kiyohito; Yoshida, Misao; Iwahashi, Toru; Hashimoto, Michiko; Inohara, Hidenori

doi:10.1016/j.jvoice.2014.02.004

Cited by 35 publications

(20 citation statements)

References 35 publications

(63 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result seems to be principally due to the irregularity of the vocal fold vibration and contact. 13,14,38 In addition, although the EGG-PPQ showed similar values by HPF at all frequencies from 0 to 90 Hz, the EGG-APQ showed gradual decreases by HPF ranging from 0 to 50 Hz during the NP tasks in the MTD group and reached plateaus in the range over 50 Hz during the NP tasks in the MTD group, as well as during the MCP tasks in the nondysphonic group. These data suggest that in the MTD patients, the EGG signals for the NP tasks include a low-frequency component under 50 Hz, perhaps due to vertical trembling of the larynx, similar to those for the NP tasks in the nondysphonic participants.…”

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 79%

“…However, according to the present results, the EGG signals for the NP tasks in the MTD patients did not actually include much in terms of lowfrequency components in the range from 50 to 90 Hz. In addition, our previous study 38 noted that none of the MTD patients showed contact between the supraglottic structures during phonation. This suggests that in the majority of MTD patients without supraglottic contact, the EGG signals are generated primarily from the contact between the vocal folds, and that the EGG-APQ values calculated from appropriately filtered EGG signals were dependent on only the irregularity of the vocal fold vibration and contact.…”

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 89%

“…In our previous studies using EGG, 13,14,38 we set the cutoff frequency of the HPF at 40 Hz for the calculation of the EGG perturbation parameters. Accordingly, the cutoff frequencies at over 40 Hz are likely to partially eliminate these subharmonic and other low-frequency components characteristic of MTD patients, thus leading to a decrease in the measurements and the impairment of the diagnostic capability of the EGG perturbation parameters.…”

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 99%

“…This suggests that in the majority of MTD patients without supraglottic contact, the EGG signals are generated primarily from the contact between the vocal folds, and that the EGG-APQ values calculated from appropriately filtered EGG signals were dependent on only the irregularity of the vocal fold vibration and contact. 38 A future study using highspeed cameras can examine how frequently and to what degree the supraglottic contact disturbs EGG signals in MTD patients who show severe supraglottic compression.…”

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 99%

See 3 more Smart Citations

Does Cervical Muscular Contraction Affect the Measurement for Electroglottographic Perturbation Parameters?

et al. 2015

Self Cite

View full text Add to dashboard Cite

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 79%

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 89%

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 99%

Section: Disturbed Egg Waveforms and Increased Egg-apq Measurements Bmentioning

confidence: 99%

See 2 more Smart Citations

Does Cervical Muscular Contraction Affect the Measurement for Electroglottographic Perturbation Parameters?

et al. 2015

Self Cite

View full text Add to dashboard Cite

“…Educational material with advice on voice care, educational videos on vocal anatomy and physiology, and incentive to attend lectures on voice health held by the hospital and teaching institution were used. The direct therapy was comprised of airflow control techniques [12, 17, 28], nasal sound exercises [17, 18, 29], laryngeal manual therapy [5, 20, 21], and semi-occluded vocal tract techniques with the use of Finnish resonance tubes and a high-resistance straw [24, 30]. …”

Section: Methodsmentioning

confidence: 99%

Effects of a Voice Therapy Program for Patients with Muscle Tension Dysphonia

Lemos¹,

Pereira²,

Sant’Anna³

et al. 2017

Folia Phoniatr Logop

View full text Add to dashboard Cite

Objective: This study aimed to verify the effects of a voice therapy program focusing on patients with muscle tension dysphonia (MTD). Patients and Methods: The sample comprised 30 participants diagnosed with MTD, 8 men and 22 women, none of whom was a voice professional. The assessments and reassessments employed the perceptual-auditory protocol GRBASI, measures of maximum phonation times, s/z ratio, and acoustic voice analysis. The voice therapy program included indirect and direct therapy approaches. Results: All parameters assessed using the GRBASI protocol improved following treatment, particularly in regard to lowering voice strain, which is important when treating MTD. The average overall maximum phonation times increased from 8.15 to 10.8 s, while the average s/z ratio did not significantly change. Among the various acoustic parameters, a positive difference was observed for vocal jitter and shimmer. Conclusions: The therapeutic approach adopted in this study proved effective in the treatment of primary and secondary MTD. Speech therapy favored lower phonation effort, lowered vocal strain, and adequacy of adjustment of laryngeal muscles.

show abstract

The Impact of Nasalance on Cepstral Peak Prominence and Harmonics‐to‐Noise Ratio

et al. 2018

View full text Add to dashboard Cite

Objectives/Hypothesis Cepstral peak prominence (CPP) has been reported as a reliable measure of dysphonia and a preferred alternative to harmonics‐to‐noise ratio (HNR). However, CPP has been observed to be sensitive to articulatory variation and vocal intensity. The aim of this study was to examine the impact of nasalance on CPP and HNR of voice signals. It was hypothesized that increased nasalance would be associated with decreased CPP. Study Design Within‐subject correlation design. Methods Thirty vocally healthy female participants were recorded reading and producing a vowel in alternation with a nasal consonant while wearing a nasometer for calculation of nasalance. Recorded vowel, nasalized, and nasal segments of speech were used to calculate CPP using Analysis of Dysphonia in Speech and Voice software, and HNR and vocal intensity using Praat software. Results Significant main effects of conditions were observed for CPP. CPP values decreased significantly when phonation changed from vowel to nasalized vowel and to nasal. There was correlation between CPP and nasalance and between CPP and intensity. HNR was slightly higher in the nasal condition than in vowel. There was a weak correlation between HNR and nasalance. No correlation was found between HNR and intensity. Conclusions CPP is sensitive to changes in vocal tract configuration caused by nasalization as well as intensity, whereas HNR is not. Therefore, CPP may reflect the periodicity in source signal or the filtering effects of vocal tract. Further research is needed to clarify the application and interpretation of CPP in clinical practice. Level of Evidence 4 Laryngoscope, 129:E299–E304, 2019

show abstract

Immediate Effects of Humming on Computed Electroglottographic Parameters in Patients With Muscle Tension Dysphonia

Cited by 35 publications

References 35 publications

Does Cervical Muscular Contraction Affect the Measurement for Electroglottographic Perturbation Parameters?

Does Cervical Muscular Contraction Affect the Measurement for Electroglottographic Perturbation Parameters?

Effects of a Voice Therapy Program for Patients with Muscle Tension Dysphonia

The Impact of Nasalance on Cepstral Peak Prominence and Harmonics‐to‐Noise Ratio

Contact Info

Product

Resources

About