1. 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

2. Progress Reports Volunteers

3. Vestibular disorders Symptoms Lack of balance Stabilization Correction Vertigo Dizziness Nausea Population Recent acoustic trauma Barometric trauma Weightlessness Diagnosis Malfunctioning inner ear Overstimulation Physical activity Habituation

4. Stenger Testing Symptoms Tinnitus Unilateral hearing loss Sporadic pain Population Anyone Children Middle-aged industrial workers Diagnosis Pseudohypacusic Normal ABR Stenger test positive

5. Stenger Testing II Auditory phenomena Simultaneous bilateral tone presentation 10 dB HL difference between ears Only louder tone is heard Stenger administration Bilateral, simultaneous presentation 10 dB HL difference between ears Poorer ear presented at 10 dB HL, 0 dB HL in good ear Adjust both ears analogous to normal audiometric threshold Stenger negative Response to good ear Stenger positive No response to threshold

6. Bilateral Pseudohypacusic Yes-No test Procedure Present tones above/below threshold in each ear Subject: yes-no to each presentation Temporal arhythmicity Are no responses correlated to onset of presentations? Best with children

7. Pulse-Count Method Rapid succession of tones presentations Arhythmic presentations Vary ear of presentation Tones above and below admitted threshold Subject responds with the total number of tones heard Does total correlate with actual tones presented above threshold Modification Present all tones above threshold

8. Why choose Psuedohypacusis? Veteran benefits Additional health care funding Disability earnings Post WWII peak (half of reported cases) Hearing histories for modern soldiers (1-4%) Industrial worker compensation Compensation, disability benefits Transfer of duties 15-30% of reported cases Children Poor academic performance excuse Attention-getter Up to 5% of reported cases