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Medicine and Health Sciences Commons

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Communication Sciences and Disorders

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Theses/Dissertations

1990

Electrocochleography

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High Frequency Acoustic Reflexes In Cochlea-Impaired And Normal Ears, Karen Elizabeth Jones Jan 1990

High Frequency Acoustic Reflexes In Cochlea-Impaired And Normal Ears, Karen Elizabeth Jones

Dissertations and Theses

The acoustic reflex refers to the contraction of a middle ear muscle in response to sound. The contraction causes a stiffening of the middle ear system and, consequently, the flow of acoustic energy to the cochlea is impeded. By measuring the change in admittance in the auditory system during sound stimulation it is possible to indirectly monitor the middle ear muscle contractions. Such measurements provide useful information regarding the integrity of the auditory system and the location of the auditory pathology.