Lecture 22 - Hearing Assessment Flashcards
Perception of conductive hearing loss?
sound muffles, dull, potential tinnitus
Perception of sensorineural hearing loss?
decreased frequency discrimination, distortion, loudness imbalance, missing frequencies, tinnitus
Causes of central auditory disorders?
peripheral injury, developmental, Friedreich’s Ataxia
Behavioural screening in children?
possible post-4 months, progressive based on aage
Middle ear assessment?
tympanometry - assess eardrum mobility
Tympanogram results?
normal, Type B (no mobility, fluid behind ear drum), Type C (high negative pressure in middle ear)
Early detecton of hearing loss in babies?
otoacoustic emissions, automated auditory brainstem response
Interventions for central hearing loss?
hearing aids, cochlear implants, sign language
Advances?
new electrodes, implant drug delivery for neural growth, bilateral implant, hybrid implants