Types of Sleep - Types of Sleep (although we use many...

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Types of Sleep (although we use many measures in combination to determine when a person is in which stage of sleep, here we are going to discuss only the EEG, since this is the most prominent feature of sleep. When we use percentages of wave occurrences, we mean that those percentages of brain waves were present in a specific time period of brain wave activity - typically a 50 second period. For example, if we say that the stage is made up of 50% Alpha waves, it means that in a 50 second period, 50% of all the brain waves measurable in that period are Alpha waves): Take a look at an image of EEG recording 1) Non-REM Sleep (NREM) -- There are two main categories of sleep, Non-Rapid Eye Movement or Non-REM (NREM) and Rapid Eye Movement (REM). NREM sleep contains all stages of sleep except REM (there are 5, although this is debatable). a) 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
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This note was uploaded on 11/18/2011 for the course PSYCHOLOGY ps 101 taught by Professor - during the Spring '10 term at Montgomery.

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Types of Sleep - Types of Sleep (although we use many...

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