PSYCH 1 Lecture Notes - Lecture 29: East Los Angeles College, Slow-Wave Sleep, Basal Forebrain

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24 Dec 2020
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Optimal amount of sleep is 7 hours. Sleep is essential for revitalizing and restoring physiological processes that keep body and mind healthy. Allow body to recover from stresses endure during waking hours. Animals are less expose to predators" minimizing wasted energy- maximizing safety. Consolidation: convert short term memories to long term memories. Awake- neural activity occurs in alpha and beta freq. bands (highest freq. lowest amplitude) Sleep divided into rem and non-rem sleep. Stage 1- falling asleep theta activity (electrical activity at 3. 5- Stage 4- deep sleep delta activity (electrical activity of brain < Stage 3 and 4 slow wave sleep. Increase heart rate, respiration and brain activity. Where dreams occur muscles minus hands and feet are paralyzed (rem atonia) Rem behaviour disorder is a parasomnia sleep disorder. Basal forebrain stimulated and will induce sleeping. Determinant of if you are asleep or awake. Attention involves selection of some information at expense of other information.

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