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In cases of primary hypothyroidism, before the substitution therapy was applied, F0, voice turbulence index, and soft phonation index differed significantly from the control values of the patients without hypothyroidism [20].
When comparing parameters of aerodynamic voice analysis between the three groups in our study, we have shown that maximum phonation time was significantly longer in subjects undergoing radiotherapy.
As the lung function is directly related to voice production, individuals with lung disease may have changed MPT and reduction in the amount of air available to support phonation (11,12-19).
Caption: FIGURE 2: Preoperative endoscopic findings in phonation.
The pretreatment observation [x.sub.A] is supposedly the earliest one (A: ante), and the posttreatment observation [x.sub.P] corresponds to the latter one (P: post), relative to the treatment whose effects on the phonation functional improvement are going to be assessed.
Each participant was given three tasks to perform before and after alcohol intoxication: (1) diadochokinesis [repeated utterance of/pa/, /ta/, and /ka/(AMR) and repeated utterance of /ptk/ in the maximum rate possible (SMR tasks)] (2) Sustained phonation [sustained phonation of /a/] and (3) Formant transition task [repeated utterance of/i-u-i/].
This finding may indicate that attempting to locate the foveae palatinae may not be a very reliable method for determining the position of the vibrating line, for which the Valsalva maneuver and the phonation mehods seem to be more reliable.
In BRLNP, vocal cords are placed in the medial or paramedial (phonation) position, which further reduces the airway, disables inspiration, with a high risk for aspiration and suffocation.
The tension induces lack of coordination between breathing, phonation and articulation, and adversely affects the quality and efficiency of voice.
Changes on Glottal Contact Quotient during Tube Phonation and Phonation with Vibrato.
Jitter is defined as cycle to cycle change in frequency and is a perturbation measure, which measures change in frequency during sustained phonation. Pathological voice samples have higher levels of jitter then normal voice and in our study jitter value changed from 1.15% to 0.62%.
Previously, the phenomenon has on occasion been referred to as "ingressive articulation" (Clarke and Melchers 2005: 51) and "ingressive phonation" (Eklund 2008:235), neither of which is technically accurate.