PSYC-101 Chapter Notes - Chapter 4: Circadian Rhythm, Jet Lag, Charlotte Selver
14 Apr 2020
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Document Summary
Consciousness - awareness of internal and external stimuli. Sleep - low level of physical activity, reduced sensory awareness. Biological rhythms - internal rhythms of biological activity; i. e. menstrual cycle. Circadian rhythm - any bio rhythm that takes place over a 24 hour cycle, i. e. sleep patterns. Suprachiasmatic nucleus scn - area of the hypothalamus that acts as the brain"s "clock" Most people"s circadian rhythms are aligned to environment. Morning larks vs. night owls - difference in melatonin release and sleep regulation. Both external and internal factors can cause synchronization issues. Sleep debt - not getting enough sleep over a long period of time. Different amount of sleep needed at different ages. Definition also includes special state of homeostasis during sleep mechanisms and special brain activity when measure by eeg. Sleep rebound - being able to fall asleep faster to make up for sleep debt. Hormone secretion, including: melatonin, fsh, lh, growth hormone.
