PSYA01H3 Chapter Notes - Chapter 5.1: Circadian Rhythm, Pineal Gland, Sleep Spindle
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(5. 1) biological rhythms of consciousness: wakefullness and sleep. Consciousness: a perso(cid:374)"s su(cid:271)je(cid:272)ti(cid:448)e a(cid:449)are(cid:374)ess, i(cid:374)(cid:272)ludi(cid:374)g thoughts, per(cid:272)eptio(cid:374)s, e(cid:454)perie(cid:374)(cid:272)es of the world and self-awareness. Humans spend 1/3 of their lives sleeping. Biological rhythms: patterns in life that are adapted to their environment (eg. bears hibernate in cold months, their circannual rhythm) example of infradian rhythm: rhythm that occurs for longer than a day (eg. menstrual cycle for women) Frequently occurring biological rhythms are called ultradian rhythms (eg. heartbeat, urination, happen. Circadian rhythm: internally driven daily cycles of approx. 24h affecting physiological and behavioural processes involve tendency to be asleep/awake at specific times of day and ability to concentrate at certain times. Endogenous rhythms (biological rhythms that are generated by our body indep. Of external cues such as light) difficult to remove external cues from human in experiments aschoff had people stay in underground chamber for 4 weeks indiv.
