Measurement of sleep-wakefulness cycle by sleep analysis program

It is difficult to evaluate sleep-wakefulness cycle in detail only by gross observation.
Analysis of electroencephalogram (EEG) is the useful method to evaluate objectively sleep-wakefulness cycle of language incomprehensible experimental animals.
Analysis by dividing sleep stages into five can make it possible to observe the sleep cycle over time and to judge the sleep stage after administration of test articles. It is possible to evaluate not only sleep-wakefulness, but also epileptic seizures by detection of epilepsy EEG such as spike and simultaneous general condition observation.