PSY-B - Psychology PSY-B 320 Lecture Notes - Lecture 20: Hallucination, Sleep Paralysis, Cataplexy
2 Mar 2017
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Why do we sleep and dream: a clock for all seasons, neural basis of the biological clock, sleep stages, sleep disorders, dreaming, what does sleep accomplish, neural bases of sleep. Inherent timing mechanism that controls or initiates various biological processes. Li(cid:374)ked to the (cid:272)(cid:455)(cid:272)le of da(cid:455)s a(cid:374)d seaso(cid:374)s produ(cid:272)ed (cid:271)(cid:455) the earth"s rotatio(cid:374) arou(cid:374)d the sun. Animals living near the poles of the earth are more affected by seasonal changes than animals living in equatorial regions. Human behavior is governed more by daily cycles than by seasonal cycles: period. Time required to complete a cycle of activity: circannual rhythm, circadian rhythm. Diurnal animal organism that is active chiefly during daylight: ultradian rhythm. Less than a day/repeated during one day (e. g. , eating cycle) Longer than a day (e. g. , human menstrual cycle: behavior is not simply driven by external cues from the environment, rhythms are endogenous (control comes from within, biological clock.
