Improved wave V resolution by dual-channel brain stem auditory evoked potential recording.
Brain stem auditory evoked potentials were recorded simultaneously from the vertex and ear contralateral to stimulation (Ac-Cz) and from the vertex and ear ipsilateral to stimulation (A1-Cz). There was clearer definition of wave V and less latency variability between trials in Ac-Cz channel recordings, resulting in enhanced wave form stability and greater reproducibility of wave I-V interpeak latencies. The clinical interpretation of dual-channel recordings is currently limited by the complexity of the auditory pathways, but the technique itself shows promise as a routine clinical procedure.
D000293:Adolescent; D000328:Adult; D001933:Brain Stem / Q000502:physiology; D004569:Electroencephalography / Q000379:methods*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008297:Male