TY - GEN AU - Niiyama,Y AU - Sekine,A AU - Fushimi,M AU - Hishikawa,Y TI - Cortical activity of REM sleep often occurs earlier than other physiological phenomena SN - 1323-1316 PY - 1998///0901 KW - Adult KW - Cerebral Cortex KW - physiology KW - Electroencephalography KW - Evoked Potentials, Auditory KW - Humans KW - Male KW - Reference Values KW - Sleep Stages KW - Sleep, REM N1 - Publication Type: Journal Article UR - https://doi.org/10.1111/j.1440-1819.1998.tb01001.x ER -