Usefulness of piezoelectric earphones in recording the brain stem auditory evoked potentials: a new early deflection.
Piezoelectric and electromagnetic earphones are compared in the recording of brain stem auditory evoked responses in man. With the piezoelectric phones the stimulus artifact can be essentially eliminated, permitting an early peak I' to appear at 1.1 msec. Also, other peaks, especially later ones, including one called VIII at 11.0 msec, appeared more consistently with smaller standard deviations of latency.
D000161:Acoustic Stimulation / Q000295:instrumentation*; D001307:Auditory Perception / Q000502:physiology*; D001933:Brain Stem / Q000502:physiology*; D055590:Electromagnetic Phenomena; D005072:Evoked Potentials, Auditory; D006801:Humans