In some songbirds perturbing auditory feedback can promote changes in song structure well beyond the end of song learning. One factor that may drive vocal change in such deafened birds is the ongoing addition of new vocal-motor neurons into the song system. Without auditory feedback to guide their incorporation, the addition of these new neurons could disrupt the established song pattern. To as...

Introduction: Benign vocal cord lesions cause significant dysphonia by disrupting the normal vibratory function of the vocal fold mucosa. Multidimensional assessment of voice characteristics allows for an accurate analysis of voice impairment and can be used to assess the outcome of different treatment modalities. Aims: To evaluate the outcome in patients treated for benign vocal fold lesions u...

To describe early cancerous and precancerous lesions of the laryngeal vocal folds as well as of the most common differential diagnoses, based on a series of microlaryngoscopic photographs. Some introductory remarks about terminology and the classification of epithelial lesions of the vocal folds are included. The paper ends with some comments as to the management of epithelial thickenings (or l...

OBJECTIVE Examination of the vocal function and acoustic analysis in 905 teachers in La Rioja. DESIGN A case control study: 576 cases and 329 controls. PATIENTS 905 teaching staff of La Rioja: 589 female and 316 male. METHODS All teachers filled in a standard questionnaire, ENT and vocal function examination, videolaryngostroboscopy and acoustic analysis with MDVP. RESULTS The prevalenc...

A retrospective study was conducted to determine the incidence of various types benign mucosal lesions larynx causing hoarseness and review role demographic etiological risk factors in relation larynx. Patients with presenting department Otorhinolaryngology at our tertiary-care institute, from month January 2017 June 2022 were evaluated by indirect video laryngoscopy followed direct biopsy. tot...

Values for acoustic voice measurements were obtained from 88 normal individuals and 98 pathological cases of mass lesions of vocal fold and 50 cases of unilateral vocal fold paralysis. Overall, all items reflecting perturbations of pitch and amplitude as well as glottal noise were significantly higher in the groups of patients compared with the normal group. The measurement of normalized noise ...

UNLABELLED Phonotrauma is considered the main cause of vocal fold polyps (VFP). However, the authors believe that an underlying anatomical deviation could render the vocal folds more susceptible to such trauma. AIM To prove this hypothesis a retrospective chart review was carried out to correlate the surgical findings of patients with VFP. MATERIAL AND METHODS The charts of thirty-three pat...

OBJECTIVE We aim to examine the abilities of objective acoustic analysis methods (nonlinear dynamic and traditional perturbation measures) to describe voices from individuals with vocal nodules and polyps. SUBJECTS AND METHODS Sustained vowel recordings from normal subjects, patients with vocal nodules, and patients with vocal polyps were analyzed. Perturbation measures of jitter and shimmer ...