Abstract
Wave I is not always recorded clearly in ABR, and it is effective to record AP simultaneously to identify wave I. If the results of AP are taken into account, no misinter-pretation can be cccured. The simultaneous recordings of AP and ABR are averaged with same stimuli, and it is easy to place the electrodes for recording of AP and ABR Testing time can be shortened by the use of simultaneous recording, and the simultaneous AP and ABR recordings are useful for the detecion of cochlear nerve and the brain stem disorders.
