Transcript PPT only

Disorders Friday!?!?!
Or The Audiologic Fandango
Upcoming Talk: Isabelle Peretz
Musical & Non-musical Brains
Nov. 22 @ 12 noon + Lunch
Rm 2068B South Building
Chapter Outlines for 10 & 11 available on the website
Progress Reports
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Volunteers
Vestibular disorders
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Symptoms
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Lack of balance
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Vertigo
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Dizziness
Nausea
Population
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Recent acoustic trauma
Barometric trauma
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Stabilization
Correction
Weightlessness
Diagnosis
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Malfunctioning inner ear
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Overstimulation
Physical activity
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Habituation
Stenger Testing
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Symptoms
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Tinnitus
Unilateral hearing loss
Sporadic pain
Population
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Anyone
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Children
Middle-aged industrial workers
Diagnosis
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Pseudohypacusic
Normal ABR
Stenger test positive
Stenger Testing II
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Auditory phenomena
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Simultaneous bilateral tone presentation
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10 dB HL difference between ears
Only louder tone is heard
Stenger administration
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Bilateral, simultaneous presentation
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10 dB HL difference between ears
Poorer ear presented at 10 dB HL, 0 dB HL in good ear
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Stenger negative
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Adjust both ears analogous to normal audiometric threshold
Response to good ear
Stenger positive
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No response to threshold
Bilateral Pseudohypacusic
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Yes-No test
Procedure
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Present tones above/below
threshold in each ear
Subject: yes-no to each
presentation
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Temporal arhythmicity
Are no responses correlated
to onset of presentations?
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Best with children
Pulse-Count Method
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Rapid succession of tones presentations
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Subject responds with the total number
of tones heard
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Arhythmic presentations
Vary ear of presentation
Tones above and below admitted threshold
Does total correlate with actual tones
presented above threshold
Modification
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Present all tones above threshold
Why choose Psuedohypacusis?
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Veteran benefits
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Additional health care funding
Disability earnings
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Industrial worker compensation
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Compensation, disability benefits
Transfer of duties
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Post WWII peak (half of reported
cases)
Hearing histories for modern soldiers
(1-4%)
15-30% of reported cases
Children
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Poor academic performance excuse
Attention-getter
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Up to 5% of reported cases