PSYC-275 Lecture Notes - Lecture 9: Sleep Spindle, Beta Wave, Delta Wave

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Non-rem sleep (nrem) -- there are two main categories of sleep, non-rapid eye movement or. Nrem sleep contains all stages of sleep except rem (there are 5, although this is debatable): stage 0 - also known as wake. In this stage your brain wave activity is composed mainly of alpha and beta wave activity. Typically, it is said that the more beta waves, the more active and awake your brain. However, do not take this to mean that when you sleep your brain is inactive. In fact, your brain is very active in certain stages of sleep, it is just not in a waking state. Do you see the diference: stage 1 - this is the transition stage from wake to sleep. It is that stage in which you are aware that you are about to fall asleep, but haven"t just yet.

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