Electrophysiological assessments require sophisticated equipment and advanced audiological skills.
Read more for information about the full range of electrophysiological assessments that are available at Beacon Audiology.
Auditory Brainstem Response (ABR/BSER)
Auditory Brainstem Response (ABR/BSER) is a screening test for hearing loss or deafness, especially notable for its use with newborn infants or difficult to test children & adults. It is a method to assess the auditory pathways and brainstem function in response to auditory stimuli, prior to the child developing to the point of describing a possible hearing problem. ABR is a safe and painless test.
ABR is performed when the child/adult is asleep or in a resting state. Electrodes are applied to the child’s/adult's head and insert earphones are used to provide the sounds. Neurological responses are recorded in response to the sounds presented. The test takes approximately 1 hour.
Cortical Evoked Response Audiometry (CERA)
Cortical Evoked Response Audiometry (CERA) is an objective test used to estimate the auditory (hearing) threshold.
Neurological responses in response to a sound stimulus are recorded by placing electrodes on the head. The presence of the response and the response characteristics, assists in the estimation of the individual’s hearing ability.
No response from the patient is required. The test is completely objective.
Vestibular Evoked Myogenic Potentials (VEMP's)
Vestibular Evoked Myogenic Potentials (VEMP's) is a neurophysiological technique used to determine the integrity of the otolithic organs namely the saccule and utricle.The response elicited is called a vestibular myogenic potential (VEMP).
VEMP's compliment the information obtained during caloric testing and further help to assist in diagnosing the cause of a particular balance problem.
VEMP's are useful in determining the presence of a perilymph fistula or superior semi-circular canal dehiscence (SSCD). VEMP's are done as part of a balance assessment.