Related Experiment Video
Updated: Jun 22, 2026

Targeted Training of Ultrasonic Vocalizations in Aged and Parkinsonian Rats
Published on: August 8, 2011
[Use of instrumental vocal analysis in phoniatrics]
1CHU La Timone, Fédération d'ORL et de chirurgie Cervico-faciale, 264 rue St Pierre, 13385 Marseille cedex 05, France. antoine.giovanni@ap-hm.fr
Abstract:
The growing need for quantitative evaluation of health care intervention along with the pitfalls of perceptual analysis is leading clinicans to utilise different instrumental vocal analysis methods including acoustic and aerodynamic methods. The fact that perceptual analysis is most often presented as the gold standard for vocal evaluation remains paradoxical. The authors present the use of aerodynamic measurements in particular oral airflow and subglottic pressure.
More Related Videos
Related Concept Videos
Physical Assessment of the Respiratory Tract IV: Auscultation
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Physical Assessment of the Respiratory Tract III: Percussion
Percussion in Respiratory Assessment
Percussion evaluates underlying tissue composition with audible and tactile vibrations,...
Larynx
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory System Abnormal Finding II: Palpation and Auscultation
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:

