Control of Fundamental Frequency in Dysphonic Patients During Phonation and Speech
| Autor: | M. Brüning, N. Greiner, Anke Ziethe, Simon Petermann, Christopher Bohr, U. Hoppe, Michael Döllinger |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Auditory perception medicine.medical_specialty Time Factors Voice Quality Mismatch negativity Audiology Speech Acoustics Young Adult 030507 speech-language pathology & audiology 03 medical and health sciences Speech and Hearing 0302 clinical medicine Phonation Feedback Sensory Muscle tension Adaptation Psychological Reaction Time otorhinolaryngologic diseases medicine Humans Pitch Perception 030223 otorhinolaryngology Electroglottograph N100 Auditory feedback Dysphonia LPN and LVN Otorhinolaryngology Female Pitch shift 0305 other medical science Psychology psychological phenomena and processes |
| Zdroj: | Journal of Voice. 33:851-859 |
| ISSN: | 0892-1997 |
| DOI: | 10.1016/j.jvoice.2018.07.001 |
| Popis: | Purpose The pitch-shift reflex (PSR) is the adaptation of the fundamental frequency during phonation and speech and describes the auditory feedback control. Speakers without voice and speech disorders mostly show a compensation of the pitch change in the auditory feedback and adapt their fundamental frequency to the opposite direction. Dysphonic patients often display problems with the auditory perception and control of their voice during therapy. Our study focuses on the auditory and kinesthetic control mechanisms of patients with muscle tension dysphonia (MTD) and speakers without voice and speech problems. Main purpose of the study is the analysis of the functionality of the control mechanisms within phonation and speech between patients with MTD and normal speakers. Method Sixty-one healthy subjects (17 male, 44 female) and 22 patients with MTD (7 male, 15 female) participated following two paradigms including a sustained phonation (vowel /a/) and speech ([‘mama]). Within both paradigms the fundamental frequency of the auditory feedback was increased synthetically. For the analysis of the PSR the electroencephalogram, electroglottography, the voice signal, and the high-speed endoscopy data were recorded simultaneously. The PSR in the electroencephalogram was detected via the N100 and the mismatch negativity. Statistical tests were applied for the detection of the PSR in the physiological response within the electroglottography, voice, and high-speed endoscopy signals. The results were compared between both groups. Results No differences were found between the controls and patients with MTD regarding latency and magnitude of the perception of the pitch shift in both paradigms, but for the magnitude of the behavioral response. Differences also could be found for both groups between the “no pitch” and “pitch” condition of the two paradigms regarding vocal fold dynamics and voice quality. Patients with MTD showed more vibrational irregularities during the PSR than the controls, especially regarding the symmetry of vocal fold dynamics. Conclusion Patients with MTD seem to have a disturbed interaction between the auditory and kinesthetic feedback inducing the execution of an overriding behavioral response. |
| Databáze: | OpenAIRE |
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