The auditory brainstem response in neuro-otology: perspectives and problems.

The interaural latency difference of the fifth wave of the auditory brainstem response (ABR) is the basis for an excellent test for acoustic tumors. Close attention is necessary to latency correction methods for conductive and sensory hearing loss. Modification of the method of Selters and Brackmann gives diagnostic error rates which are markedly superior to other common tests. The range of applicability, reliability, and efficiency of ABR testing can be increased by proper selection of stimulus intensity and repetition rate. ABR distortion by filters is serious problem, which can be solved by digital methods.