Objectives of middle-ear research (23 of 24)

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1. Motivation

2. Research objectives

3.1 Adults

3.2 Newborns

3.2 Newborns (cont'd)

4.1 Audiogram

4.2 Auditory brainstem response

4.2 Auditory brainstem response (cont'd)

4.3 Otoacoustic emissions

4.3 Otoacoustic emissions (cont'd)

4.3.1 Limitations

4.4 Acoustical input admittance

4.4 Acoustical input admittance (cont'd)

4.5 Tympanometry

4.5 Tympanometry (cont'd)

5.1 Passive prostheses

5.1 Passive prostheses (cont'd)

5.1 Passive prostheses (cont'd)

5.1 Passive prostheses (cont'd)

5.2 Passive external devices

5.3 Hearing aids and implants

23 of 24

7. Teaching

6. Inner ear

Diagram of ear

Characterization of stimulus to inner ear

For interpretation of cochlear experiments

Often, the input to the cochlea is characterized by measuring

sound pressure in front of the eardrum, or
the vibration amplitude of one point on the eardrum

but the actual cochlear input is determined by the middle ear

After Cull (1989): The Sourcebook of medical illustration, Parthenon, Carnforth, xxiii+481 pp.

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BMDE-501 Modelling middle-ear mechanics

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