Outer Ear Disorders
Inner Ear Disorders
Genetics
Screening
Tests
100
What is microtia
Labeled as a 'small ear' and has a high association with atresia
100
What is Presbycusis?
1. Age-related hearing loss 2. Acquired cochlear disorder 3. High frequency hearing loss 4. Mild, moderate or severe 5. Symmetrical
100
The acoustic energy produced by the outer hair cells, measurable with a probe tip at the entrance to the external auditory meatus.
What are otoacoustic emissions?
100
The type of reflective sound that makes listening in a classroom difficult.
What are late reflections (reverberation)?
100
Characterized by normal hearing sensitivity, normal OAEs, and difficulty hearing speech in noise.
What is an auditory processing disorder?
200
What are pits and tags?
indented area or extra skin on the ear
200
What is Ototoxicity?
1. Hearing loss that occurs from therapeutic drugs 2. Degree of hearing loss and range of affected frequencies increase with dosage and time
200
This is particularly useful in evaluating hearing-impaired children who may only be able to detect suprasegmental features of speech.
What is the Monosyllable-Spondee-Trochee (MST) test?
200
This type of auditory processing test is designed to exclude other language or hearing disorders.
What are dichotic listening tests?
200
The adult patients with this problem often report having neurological, non-auditory symptoms, and difficulty understanding speech in noise.
What is auditory neuropathy?
300
What is aural atresia?
Complete or incomplete congenital closure of the ear canal
300
What is Noise-induced hearing loss
1. Degree of sensorineural hearing loss depends on: a. Type and intensity of the noise b. Spectral composition of the noise c. Duration of exposure and rest between exposures d. Individual differences 2. Test: Pure tone = best because the notch in certain frequencies
300
The response in those with normal auditory function can be observed at least one minute.
What is acoustic reflex decay?
300
Distance and reverberation
What are two things that create a poor acoustical setting for classroom instruction?
300
Children and adults using this can perceive only about 30% of speech without additional input.
What is speechreading?
400
What is Otosclerosis
Has abnormal bone growth in middle ear, and results in a conductive hearing loss. Tympanogram = flat
400
1. Hearing = normal to severe/profound hearing loss - Any configuration of severity/can be asymmetrical 2. Speech recognition = variable; slightly reduced to greatly reduced 3. OAE = present/normal 4. Tympanometry = within normal limits 5. Acoustic reflexes = absent 6. ABR = abnormal or absent - Because it effects the nerve
What is auditory neuropathy?
400
Used to screen for middle ear disorders.
What are physical volume and admittance?
400
Normal intelligence, native English speaker, age 7 and up, for example.
What conditions must be present to perform a reliable auditory processing test?
400
A hereditary auditory disorder that is likely to appear after a person's exposure to aminogylcocide antibiotics.
What is mitochondrial inherited hearing loss?
500
What is Cholesteatoma
Skin cyst located in the middle ear and skull bone (mastoid) and results in a conductive hearing loss
500
This structure continues to mature and develop for several years after birth.
What is the auditory cortex?
500
A normal OAE result and an abnormal ABR finding.
What is the pattern of results for someone with auditory neuropathy?
500
A secondary microphone for a talker, with a receiver for the listener.
What is an FM system?
500
A surgically implanted device that has a removable external piece, designed for someone with normal cochlear function.
What is a bone-anchored hearing aid (BAHA)?