PSYA01H3 Chapter Notes - Chapter 5: Brain Death, Reuptake, Sleep Disorder
Document Summary
Consciousness: a person s subjective awareness, including thoughts, perception, experiences of the world & self-awareness. Infradian rhythm: any rhythm that occurs over a period of time longer than a day e. g. menstrual cycle. Ultradian rhythm: any rhythm that occurs for 1 hr - 1 day e. g. sleep cycles/ heart rate. Circadian rhythm: internally driven daily cycles of approximately 24 hours affecting physiological & behavioural processes e. g. tendency to sleep or wake. Entrainment: biological rhythms become synchronised to external cues e. g. light, temp or a clock. Endogenous rhythm: biological rhythm that are generated by our body independent of external cues e. g. light -> j rgen aschoff & michel siffre locked participants/ himself in isolated chambers -> still 25 hrs per day. Cr ch w/ age: need much less (rem) sleep when grow up; shows higher alertness & cognitive functioning during preferred time of day. [maintain sleeping state & memory storage] -> 20 mins -> 3.
