PSYC 2000 Lecture Notes - Lecture 4: Growth Hormone, Sleep Spindle, Delta Wave
Document Summary
Consciousness: a person"s awareness of everything that is going on around them at any given moment, waking consciousness. You in class: altered state of consciousness. Range of consciousness: high level of awareness. Focused attention (high level of concentration: middle level of awareness. Some awareness, but minimal attention requires (day dreaming, Internal process people use to set priorities for mental functioning: resources are limited, dichotic listening task. Sleep one time: circadian rhythms, melatonin. Hypothalamus/suprachiasmatic nucleus pineal gland melatonin. Why do we need to sleep: adaptive theory. Animals and humans evolved sleep patterns to avoid predators. Sleep is necessary to the physical health of the body and serves to replenish chemicals and repair cellular damage. Ex: human growth hormone is only released when sleeping. Stages of sleep: rapid-eye movement (rem) All the other stages of sleep: awake. Jerk awake and say you weren"t sleeping: n2. More difficult to wake up than n1, but they are aware that they were asleep: n3.
