PSYCH 133 Study Guide - Midterm Guide: Muscle Tone, Relaxed Muscle, Non-Rapid Eye Movement Sleep

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Loss of external awareness, disconnected thoughts, disoriented in time/space. Circadian rhythm, horizontal position, low muscle tone, non- responsive, sleep rebound after deprivation. Nrem (stages 1-4), 3 and 4 are considered sws, rem: dream, no muscle tone. High activity in eyes, high frequency in brainwaves, high muscle tone. Eyes stop, slow rolling of eyes, lower frequency with greater amplitude. No eye movement, huge brain waves w/low frequency, lower muscle tone. High eye movement, brainwaves similar to awake, null muscle activity. Have rem/nrem, short sleep, can sleep uni-hemispheric, power naps, essential for migration during flight. Shows nrem, no rem apparent, rem may have evolved with thermoregulation, metabolic control. No set means of sleeping, !kung sleep on ground, efe sleep in social cooperative manner. The smaller the animals with higher metabolic rates sleep more, opposite for the larger animals. Acetylecholine (ach), noreadenaline (na), serotonin (5-ht): all of these are released within the brainstem and released into the cerebral cortex globally.