Resonance & Other Voice Disorders Flashcards
Hypernasality
Excessive nasal resonance during non nasal sounds
Etiology: velopharyngeal incompetence, or failure of the velopharyngeal port to attain and/or maintain sufficient closure
Hypernasality vocal parameters
Non-organic: no associated symptoms
Organic: faulty articulation, nasal emissions, facial grimacing, laryngeal abnormalities, reduced intensity/loudness
Hyponasality
Speech productions that are deficient or lacking in nasal resonance
Etiology: typically organic origin resulting from an obstruction in the nasopharyngeal area
Hyponasality parameters
Voice has “muted’ sound, sounds like patient has a “head cold”
Mixed Resonance
Evidence for both hypernasality due to velopharyngeal dysfunction and hyponasality
Cul-de-sac resonance
A “muffled and hollow” vocal quality, lacking full resonance
Etiology: tongue deeply retracted and posteriorly placed in the pharynx
Functional Voice Disorder: Paradoxical Vocal Fold Motion (PVFM)
Airway obstruction due to vocal fold closure
Occurs during speech and inhalation
Etiology: no definitive etiology, frequently mistaken for asthma
Possible causes: psychological, airway hyperactivity, neurogenic, pharmacological, unspecified
Paradoxical Vocal Fold Motion Characteristics
Vocal: Breathy, weak phonation, hoarseness, inspiratory stridor
Nonvocal: throat tightness, wheezing, chest tightness, shortness of breath, cough