PSYC 1F90 Chapter Notes - Chapter 24: Sigmund Freud, Robert Mccarley, Night Terror
9 Mar 2016
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Sleep is an innate biological rhythm, that is essential. Sleep deprivation can cause many symptoms like hypersomnia, trembling hands, trouble staying alert. Severe deprivation can cause sleep-deprivation psychosis (loss of contact with reality: sleep patterns. Change from individuals but the average is 7-8 hours a day. Total sleep time also declines with age. People over 50 years can get by with 6 hours. Stages of sleep: repair/restorative theories of sleep proposed that lowering boy and brain activity and metabolism, can help conserve energy and lengthen life, sleep stages. When awake, beta waves (small, fast brain waves), are recorded. Alpha waves(large, slow brain waves associated with being relax and falling asleep), breathing slows down, eyes close, and body temp drops. Heart slows down, breathing irregular, small irregular brain waves and some alpha waves. Sleep spindle (burst of brain wave activity, indicate a person is asleep. Delta waves (large, slow brain waves, occur in deep sleep)
