An improved technique for simultaneous recording of action potential and auditory brainstem responses.
A simple method for the assessment of central conduction time in auditory brainstem response (ABR) cases with distorted or absent wave I and the technical problems involved are discussed. New electrodes systems for extra/transtympanic recording, artifact-free acoustic stimulation and a combined recording of the large amplitude SP/AP complex and small ABR waveforms are described. The need for external adjustment of the AP/wave V amplitude ratio has been demonstrated in order to obtain the satisfactory recording.
D000161:Acoustic Stimulation; D000200:Action Potentials; D001300:Audiometry, Evoked Response / Q000379:methods; D001933:Brain Stem / Q000502:physiology; D004566:Electrodes; D005072:Evoked Potentials, Auditory; D006801:Humans