Resolving Own-Voice Complaints/Tympanometry in Dispensing Practice

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1. The corneum stratum (keratin layer) of the external ear canal (EAC) *

Is the protective outer layer of the ear canal, shielding mechanoreceptors from over-sensitivity
Is necessary to successfully adapt to wearing hearing aid/earmold
When missing, contributes to \”non-acoustic occlusion\”, via Arnold’s (Vagus) Reflex
Like a conveyor, travels 1mm per day from the TM to keep human ears clean
All of the above

2. Which pair of the following descriptions accurately match the Tympanometry results shown below *

Type A Shallow- Tympanic membrane plaques or long-time high gain/output user
Type B- Abnormally large volume, perforated tympanic membrane, need to refer
Type C- normal compliance, good tympanic membrane movement with air pressure
A & C
B & C

3. One’s own-voice biofeedback system explains how we monitor our voice to *

Sense balance between tactile, external, and internal signal input
Utilizes interneural monitoring between vagus, facial, trigeminal, and auditory nerves
Detects tactile sensory input at the tympanic plexus of the TM at the pars tensa
Understand the narrow range of voice loudness as it is detected in the sinuses, when too loud and in the throat when it is too soft
All of the above

4. Why is it imperative to train hearing aid patients to first set their hearing aid volume control (VC) to their own voice before setting it for others’ voices? *

They may otherwise hear their own voice too loudly for comfort and decide not to wear their instruments
Shorten adaptation time by giving them better control over loudness perceptions
Detects tactile sensory input at the tympanic plexus of the TM at the pars tensa
It will help improve localization and other spatial ability in a more realistic context
All of the above

5. Why is it imperative to train hearing aid patients to first set their hearing aid volume control (VC) to their own voice before setting it for others’ voices? *