Related Experiment Video
Updated: Jul 20, 2026

fMRI Mapping of Brain Activity Associated with the Vocal Production of Consonant and Dissonant Intervals
Published on: May 23, 2017
The irradiated larynx and voice: a perceptual study
Abstract:
The voices of patients with laryngeal cancer following a specific radiotherapy regimen were subjected to perceptual evaluation. Interval scaling of the severity of perceived dysphonia was completed for the voices of male patients sampled before and 1 year following radiation therapy and for a set of male controls. Eight listeners did this quantitative rating and also specified the predominant quality in each voice. The results indicated that the degree of dysphonia in the pretreatment group was highest. Radiotherapy decreased this dysphonia but not to the point that posttreatment voices were indistinguishable from those of normal subjects. Also, the voice qualities of laryngeal cancer patients shifted toward those of the control group following radiotherapy with over one half of the irradiated patients judged to have rough or normal qualities.
Related Concept Videos
Perception of Sound Waves
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
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...
Respiratory System Abnormal Finding II: Palpation and Auscultation
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Auditory Perception
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Factors Affecting Perception
An illustrative example of a perceptual set is the scenario where an airline pilot told...

