Electric potentials {auditory evoked potential} (AEP) happen after sounds [Creutzfeldt and Houchin, 1984] [Creutzfeldt, 1995] [Freeman, 1975] [Mountcastle, 1957] [Mountcastle, 1998] [Remond, 1984]. Scalp electrodes can record them.
sleep
AEP during waking and REM sleep are similar but differ from AEP during non-REM sleep. Early AEP do not fluctuate during sleep-waking cycle. Early thalamocortical activity causes middle AEP, which decrease amplitude from waking to stage-4 sleep but are normal in REM sleep.
Later, AEP amplitudes decrease from waking to stage-4 sleep but increase in REM sleep. P20 component reflects cerebral-cortex activity and increases from waking to stage-4 sleep but returns to waking level in REM sleep. REM sleep does not have latest AEP: P100 wave, P200 wave, and P300 wave.
Biological Sciences>Zoology>Organ>Nerve>Brain>Electrical Activity
4-Zoology-Organ-Nerve-Brain-Electrical Activity
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Date Modified: 2022.0224