INTRODUCTION One of the most widely accepted surgical technique for improving unilateral vocal cord palsy is the medialization thyropflasty. Adequate placement of the prosthesis is essential for optimal results. Some authors have developed mathematical models to estimate the position of the vocal cord, which can provide an idea of its location, but these models are unreliable due to inter-indiv...

Vocal imitation--the ability to learn a previously unknown acoustic signal from a tutor--is considered to be a key innovation in the evolution of speech. This faculty is very rare and patchily distributed within the animal kingdom, suggesting multiple instances of convergent evolution. It has long been predicted that bats should be capable of vocal imitation and our results provide evidence for...

Vocal cord paralysis (VCP) is considered as a closure of glottal cavity during phonation. Vibration impairment in the vocal mucosa to loss voice result glottic space not closing. Many implant biomaterials are used for VCP. These implants, which can be applied restore function paralyzed and improve sound quality, Medialization thyroplasty (MT) type 1 surgeon. The aim this study produce customiza...

The paper introduces the special issue by linking the International Spinal Cord Injury (InSCI) Community Survey study to the Learning Health System for SCI Initiative (LHS-SCI). The LHS-SCI was designed to respond to the implementation challenge of bringing about policy reform in light of the targeted policy recommendations of World Health Organization's International Perspectives on SCI report...

OBJECTIVES/HYPOTHESIS To determine whether injection augmentation reduces the likelihood of ultimately needing definitive framework surgery in unilateral vocal fold paralysis (UVFP) patients. STUDY DESIGN Retrospective cohort study. METHODS All patients diagnosed with UVFP (2008-2012) at the academic center were identified. The time from symptom onset to presentation to either community oto...

This article presents an overview of the normal anatomy and physiology of the pediatric larynx, followed by some examples of pediatric voice disorders that were chosen to exemplify the alterations to the laryngeal anatomy and the subsequent modifications to laryngeal function. Vocal fold nodules are primarily reviewed due to their high incidence in the pediatric population. Three other disorder...

A 38-year-old man with posttraumatic bilateral vocal cord paralysis and a surgically repaired avulsion of the extrathoracic trachea presented with a slight increase of exertional dyspnea (grade 2). Spirometry showed high normal FEV1 for FVC variables, but the F-V loop was characteristic for highly variable UAO with an increased FEV1/PEF ratio of 11 ml/L/min as well as a MEF50/MIF50 of 4.55. End...

In humans, vocal turn-taking is a ubiquitous form of social interaction. It is a communication system that exhibits the properties of a dynamical system: two individuals become coupled to each other via acoustic exchanges and mutually affect each other. Human turn-taking develops during the first year of life. We investigated the development of vocal turn-taking in infant marmoset monkeys, a Ne...

Abstract Chaos, oscillations, instabilities, intermittency represent only some nonlinear examples apparent in natural world. These phenomena appear in any field of study, and advances in complex and nonlinear dynamic techniques bring about opportunities to better understand animal signals. In this work we suggest an analysis method based on the characterization of the vocal fold dynamics by mea...