NREM and REM sleep and dreams 0.0 / 5 ? PsychologySleep and DreamsBiological ProcessScottish HighersSQA Created by: rallan15Created on: 23-05-21 16:27 Polysomnography A study of a sleeping individual which records multiple physical changes in the body and brain. 1 of 6 EEG Measures the brains electrical activity. 2 of 6 Stages 1 - 4 Non-REM sleep. 1 = "drifting off" 2 = Less responsive (10mins) 3 = EEG shows delta waves. Unresponsive (25mins) 4 = Sleep gets gradually deeper. 3 of 6 Stage 5 REM sleep. Eyes will rapidly move. Body is temporarily paralysed. This is when we dream. 4 of 6 Oswald REM refreshes the brain. NREM refreshes the body. 5 of 6 Sharpio Marathon runners had more NREM sleep after a race. 6 of 6
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