Chap. 5: Body Rhythms and Mental States Al Introduction: 1. Biological Rhythms C

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Chap. 5: Body Rhythms and Mental States Al Introduction: 1. Biological Rhythms Circadian Rhythms. Infradian Rhythms. Ultradian Rhythms. Bl Biological And Environmental Clocks That regulate Consciousness: I. The Hypothalamus The Suprachiasmatic ucleus synchronises: Blood Pressure Body temperature *Hormones-Melatonin. 2. Internal Synchronisation Desynchronisation -Resynchronization. CI Sleep: 1. The Dawn of Sleep research Eugene Aserinsky & Nathanial Klietman 2. The functions of Sleep. 3. The Rhythm of sleep. 4. Sleep disorders DI Dreams and Mental Activity During I. The Brain during REM Sleep 2. Theories Of Dreams: a] Dreams as Unconscious Wishes. b] Dreams as reflections of current concern. C] Dreams as a byproduct of mental D] Dreams as Interpreted brain activity El Hypnosis: 1. Definition of Hypnosis. 2. A typical hypnotic experiment. 3. Effects of Hypnosis. Fl Psychoactive Drugs Stimulants, Depressants, opiates, Psychedelic Drugs, Anaboloic steroids, Marijuana. Assignment 5: Q. Systematically outline and explain the rhythms of

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1:

•Circadian Rythms: Certain brain structures and chemicals produce the states of sleeping and waking. For instance, a pacemaker like mechanism in the brain regulates circadian rhythms. (Circadian means about a day.) This internal clock, which gradually becomes established during the first months of life, controls the daily ups and downs of biological patterns, including body temperature, blood pressure, and the release of hormones.

•Infradian Rythms: A biological rhythm that is repeated longer than a 24-hour circadian day and therefore recurs over a longer period than a circadian rhythm.

•Ultradium Rythm: An ultradian rhythm has a shorter period and higher frequency than a circadian rhythm. The cycle is repeated throughout a 24-hour circadian day. This is in contrast to the infradian rhythm wherein the recurrent period occurs longer than a day. In ultradian rhythm, the cycle has a period shorter than a day but longer than an hour. Examples of ultradian rhythms are blood circulation, pulse, heart rate,

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