EEG and Sleep Stages - PsychSim 5 EEG AND SLEEP STAGES Name Kai-Ting,Chen Date Section S01 This activity provides an explanation of the measurement of

EEG and Sleep Stages - PsychSim 5 EEG AND SLEEP STAGES Name...

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PsychSim 5: EEG AND SLEEP STAGES Name: Kai-Ting,Chen Section: S01 Date: 2/11/10 This activity provides an explanation of the measurement of brain activity, as well as the presence of different sleep patterns and their respective functions. EEG How is the brain’s electrical activity recorded? Electrodes placed on the scalp can detect these signals. When the signals are amplified and fed into a special type of physiograph called an electroencephalogram (EEG), scientists can obtain a permanent record of the gross activity of the brain. Stages of Sleep Complete the following table: Characteristic EEG Pattern Stage 1 Transition into sleep Showing a mixture of small, fast waves and slightly slower waves. Stage 2 Beginning of slow-wave sleep, marked by bursts of activity called sleep spindles. Consists of moderately slow waves interspersed with bursts of rapid activity. Stage 3 Marked by appearance of very large, very slow waves called delta
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