sixteen subjects affected by lennox-gastaut syndrome ( 11 males and five females , ranging from 5 to 15 years of age [ mean age , 9 years 11 months ] ) were followed for periods of 9 months to 5 years 9 months , and were studied during three to five prolonged hospitalizations for total periods of 2-9 months with a veiw to examining the distribution of epileptic seizures during four states of vigilance , evaluated from a behavioral point of view : sleep , drowsiness , inactive wakefulness , and active wakefulness . it was ascertained that the overall average of 406 seizures daily , directly observed , was distributed as follows : 26 ( 6.40 % ) during sleep ;
C0004927
behavioral
C0037313
sleep