An objective technique to evaluate hearing which involves placing electrodes on the head and recording brain wave activity from the brainstem as sounds are presented.
electrical activity stimulated by brief sounds such as clicks, generated by the auditory nerve and brainstem, and recorded from the surface of the ear and forehead. This may also be abbreviated as BSER, BAER. ABR is used to assess hearing sensitivity in babies and children, and to evaluate the neural pathway (from ear to brain) in adults.
a test that measures the response of the brainstem to sound.
This test provides objective information about the upper auditory system including the inner ear and brainstem. This is a simple and non-invasive test on part of the patient. Electrodes are placed on the ears and head while a click stimulus is presented through soft foam earplugs. This test records the brainwave response to the stimulus. The audiologist will complete analysis and interpretation of the results and your Otolaryngologist will discuss the test results with you. Back to the Audiology Clinic main page
An electroacoustical diagnostic hearing test for children or adults who are difficult to test. Electrodes are used to evaluate the neurotransmission of auditory stimuli.
The family of peaks (& troughs) recorded in the 10ms following a brief stimulus such as an acoustic click. On a simplistic basis, each peak has an anatomically distinct generator so the amplitude and latency intervals of the peaks may be used to make gross inferences on the status of the generators or their interconnections. Ironically, peaks I & II arise from (the distal and proximal portions of) the auditory nerve rather than from within the brainstem itself. The generator of peak III is thought to be the cochlear nucleus, peak IV the superior olive, peak V the lateral lemniscus though this model is an over-simplification for the later peaks, especially peaks V, VI & VII, in which multiple generators are implicated. Wave V is often employed in the assessment of hearing since it can be recorded close to the audiological threshold.
(ABR) test test used for hearing in infants and young children, or to test for brain functioning in unresponsive patients.
a special hearing test done while a patient is hearing clicks or certain tones.
A physiological measure of the brainstem's response to sound. It tests the integrity of the hearing system from the ear to the brainstem by measuring the length of time for signals from sound to be detected by the brain.
Hearing test that measures electrical activity at the brainstem in response to sounds; reveals basic information about whether sounds are getting to the brainstem and if the ear is working properly.
Auditory brainstem response (ABR) is an electrical signal evoked from the brainstem of a human or other mammal by the presentation of a sound such as a click.