AUTOMATED OTOACOUSTIC EMISSION Meaning and
Definition
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Automated Otoacoustic Emission (AOAE) refers to a non-invasive diagnostic technique used to evaluate the health and functionality of the inner ear, specifically the cochlea. The cochlea is responsible for converting sound vibrations into electrical signals that can be interpreted by the brain.
AOAE utilizes a small probe inserted into the ear canal to deliver a series of low-intensity sounds. When these sounds reach the cochlea, they stimulate tiny hair cells called outer hair cells (OHCs). In response, the OHCs emit faint sounds known as otoacoustic emissions (OAEs). These emissions are too subtle to be detected by the human ear but can be measured with specialized equipment.
An automated system is employed to detect and measure the OAEs generated by the OHCs. This system comprises a microphone to pick up the emissions, an amplifier to amplify the signals, and a computer algorithm to analyze and interpret the data. The automated nature of the process ensures accuracy and eliminates the possibility of human error.
AOAE is commonly used in audiology and otolaryngology practices to assess the integrity of the cochlea, particularly in newborns, infants, and individuals who may have difficulty responding to traditional hearing tests. It can provide valuable information about the presence and severity of hearing loss and is generally considered a reliable and objective measure of cochlear function.
Overall, automated otoacoustic emission testing offers a non-invasive, efficient, and accurate method for evaluating the health of the inner ear and identifying potential hearing impairments.
