abnormal auditory brainstem response MPheno.ontology abnormal brainstem auditory brainstem response(s) MP:0004738 anomaly in the electrical activity generated in the ascending auditory system in response to short tone bursts; may be used to evaluate sensorineural hearing function; measurements may include the amplitude (the number of neurons firing), latency (the speed of transmission), interpeak latency (the time between peaks), interaural latency (the difference in wave V latency between ears) and threshold abnormal BAEP(s) abnormal brainstem auditory evoked potential abnormal brainstem evoked responses abnormal ABRs abnormal hearing electrophysiology