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Coordination of jaw muscle activity for speech production sometimes has been modeled using nonspeech behaviors. This orientation has been especially true in representations of mandibular movement in which the synergy of jaw muscles for speech production has been suggested to be derived from the central pattern generator (CPG) for chewing. The present(More)
The relationship between age-related changes in body physiology and certain acoustic characteristics of voice was studied in a sample of 48 men representing three chronological age groupings (25-35, 45-55, and 65-75) and two levels of physical condition (good and poor). A fundamental frequency analysis program (SEARP) was used to measure mean fundamental(More)
Coarctation of the aorta (CoA), is a congenital defect characterized by a severe narrowing of the aorta, usually distal to the aortic arch. The treatment options include surgical repair, stent implantation, and balloon angioplasty. In order to evaluate the physiological significance of the pre-operative coarctation and to assess the post-operative results,(More)
We propose a CFD-based approach for the non-invasive hemodynamic assessment of pre- and post-operative coarctation of aorta (CoA) patients. Under our approach, the pressure gradient across the coarctation is determined from computational modeling based on physiological principles, medical imaging data, and routine non-invasive clinical measurements. The(More)
BACKGROUND The Coarctation of the Aorta Stent Trial (COAST) was designed to assess the safety and efficacy of the Cheatham Platinum stent when used in children and adults with native or recurrent coarctation. Acute outcomes have been reported. We report here follow-up to 2 years. METHODS AND RESULTS A total of 105 patients underwent attempted(More)
To assess the role of oral sensation in the execution of a stuttering moment, six adult male stutterers, ranging in severity, provided samples of spontaneous speech in three experimental conditions: control, anesthetic, and placebo. In the anesthetic condition, sensory deprivation of the oral cavity was achieved by means of a series of nerve-block(More)
Cineradiography was used to study the behavior of the lips, tongue, and mandible in two subjects talking normally and under the influence of trigeminal nerve-block anesthesia. The speech sample consisted of isolated words and sentences. The nerve block was administered to eliminate somesthetic sensation in all of the oral articulators except the jaw.(More)
PURPOSE Coarctation of the aorta (CoA) is a congenital heart disease characterized by an abnormal narrowing of the proximal descending aorta. Severity of this pathology is quantified by the blood pressure drop (△P) across the stenotic coarctation lesion. In order to evaluate the physiological significance of the preoperative coarctation and to assess the(More)
Five nonsingers and five singers vocally matched the pitches of frequency modulated tones. Subject responses to the shadowing task were analyzed in terms of accuracy, and in terms of duration and speed characteristics of pitch changes. In addition, each frequency change was categorized according to hit, overshoot, undershoot, or oscillate patterns. Singers(More)