Vocal fold nodules: A disorder of phonation organs or auditory feedback?
Clin Otolaryngol
; 44(6): 975-982, 2019 11.
Article
en En
| MEDLINE
| ID: mdl-31436035
ABSTRACT
OBJECTIVE:
Increasing evidence supports that auditory feedback of one's own voice closely relates to real-time adjustments of vocal control. Previous studies highlighted that the low-frequency modulations of below 3 Hz (LFM) embedded in vocal fundamental frequency (F0) showed a reflex-like response to altered auditory inputs. However, the auditory feedback control of different vocal disorders remains unclear.DESIGN:
A cross-sectional, case-controlled study.SETTING:
A tertiary medical centre.PARTICIPANTS:
Sustained vocalisations of vowel/a/ from adult healthy controls and patients with vocal fold nodules, vocal fold polyps and vocal fold cysts, respectively. The vocalisations were made at a comfortable pitch and at the intensity of 70 ~ 80 dBC under the following four auditory conditions natural hearing, 90-dBC speech noise, 10-dBC enhanced feedback of self-produced voice and both the noise and voice feedback. MAIN OUTCOMEMEASURES:
Power spectral analysis of F0 contour of sustained vowel.RESULTS:
Patients with vocal fold nodules presented with different audio-vocal feedback behaviour and audio-vocal response to speech noise from the other two vocal pathologies of vocal fold polyp and vocal fold cyst as well as the healthy controls (P < .001, one-way ANOVA).CONCLUSION:
The vocal fold nodules may be not only a vocal fold disease but also a disease caused by abnormal audio-vocal feedback. Moreover, the distinct audio-vocal feedback of vocal fold nodules could be revealed by power spectral analysis of vocal fundamental frequencies. Although further investigations are necessary, adjustments of audio-vocal feedback behaviour may provide a new insight and benefit to the treatment of vocal fold nodules in the future.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Percepción Auditiva
/
Pliegues Vocales
/
Calidad de la Voz
/
Trastornos de la Voz
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Clin Otolaryngol
Asunto de la revista:
OTORRINOLARINGOLOGIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Taiwán