منابع مشابه
Vocal shimmer in sustained phonation of normal and pathologic voice.
Vocal shimmer during sustained phonation was measured in normal subjects and patients with laryngeal polyps, using the mean amplitude difference between consecutive cycles expressed in dB. A small laboratory computer was then used for measuring each discrete amplitude and for data processing. The results showed some overlap between the values for two groups studied, but nevertheless it appears ...
متن کاملVocal Parameters of Adults with Down Syndrome in Zahedan /Iran
Background & Aims: Previous studies have indicated significant differences in vocal parameters between children with Down syndrome and normal children, but there are challenges about these differences. In this study vocal parameters and Maximum Phonation Time (MPT) in adults with Down syndrome have been investigated. Method: This cross-sectional and analytic study was performed on 22 adults wit...
متن کاملSimulation of Human Phonation with Vocal Nodules
The geometric and biomechanical properties of the larynx strongly influence voice quality and efficiency. A physical understanding of phonation natures in pathological conditions is important for predictions of how voice disorders can be treated using therapy and rehabilitation. Here, we present a continuum-based numerical model of phonation that considers complex fluid-structure interactions o...
متن کاملModeling the role of nonhuman vocal membranes in phonation.
Although the mammalian larynx exhibits little structural variation compared to sound-producing organs in other taxa (birds or insects), there are some morphological features which could lead to significant differences in acoustic functioning, such as air sacs and vocal membranes. The vocal membrane (or "vocal lip") is a thin upward extension of the vocal fold that is present in many bat and pri...
متن کاملCoordination between posture and phonation in vocal effort behavior.
BACKGROUND Postural correlates of vocal effort are rarely described in the literature, while they are extensively dealt with in speech therapy. OBJECTIVES This study aims at determining whether body movement is a side effect of vocal effort or an integral part of communication effort behavior. The answer to this question is mainly based on correlations between posture and phonation. METHOD ...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1976
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.69.6special_819