A method of evaluating auditory function bypasses the typical air conduction pathway. Instead, it introduces sound vibrations directly to the inner ear through the skull. For instance, a small device placed against the mastoid bone behind the ear emits vibrations, stimulating the cochlea and allowing an individual to perceive sound, even with certain outer or middle ear impairments.
This assessment is valuable in differentiating between sensorineural and conductive hearing loss. By isolating the inner ear’s response, clinicians can determine if the hearing deficit originates in the outer or middle ear, or if it stems from damage to the inner ear or auditory nerve. Historically, this type of evaluation has aided in the diagnosis of various auditory conditions and guiding appropriate treatment strategies.
