The brain-stem auditory evoked potential (BAEP), a sensitive test of the functional status of the neonatal brain, has not been studied in utero since no practical technique for human fetal recording is available. We have developed a simple recording technique which allows continuous monitoring of the fetal AEP during labor. Waves I, III and V of the fetal brain-stem AEP have been consistently identified. Wave form morphology, interpeak latencies, and latency-intensity relations are similar to postnatal recordings. Middle latency potentials have also been recorded, with wave forms that correspond to the neonatal middle latency AEP.

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human fetal recording aep auditory evoked potential middle latency potentials brainstem

K, Staley V, Iragui M, Spitz,.The human fetal auditory evoked potential.. 77 (1),1-5.

K, Staley V, Iragui M, Spitz,"The human fetal auditory evoked potential." 77

K, Staley V, Iragui M, Spitz,"The human fetal auditory evoked potential."