resonance disorder
A speech disorder affecting the modification of sound by the vocal tract cavities, resulting in abnormal nasal or oral resonance.
Full Definition
Resonance disorders occur when there is abnormal modification of sound by the cavities of the vocal tract, including the oral, nasal, pharyngeal, and laryngeal cavities. The primary types include hypernasality (excessive nasal resonance), hyponasality (reduced nasal resonance), and mixed resonance patterns. These disorders may result from structural abnormalities such as cleft palate, neurological conditions affecting velopharyngeal function, or functional issues. Speech-language pathologists assess resonance through perceptual analysis, instrumental measures, and sometimes nasometry to determine appropriate intervention strategies.
Usage
Usage note: Often requires collaboration with otolaryngologists and plastic surgeons for comprehensive management.
In Context
- "The resonance disorder evaluation indicated hypernasality secondary to velopharyngeal insufficiency." — Diagnostic assessment
- "Speech therapy focused on resonance modification techniques and oral-nasal contrast training." — Treatment documentation