PSYCH 100 Lecture Notes - Lecture 13: Blood Pressure, Rapid Eye Movement Sleep, Sleep Spindle
Document Summary
Consciousness: everything of which we are aware of at any given time, thoughts, feelings, sensations, external stimuli, altered states of consciousness, sleep, meditation, hypnosis, drugs. Sleep: understanding of sleep increased by the study of: brain waves, eye movements, chin muscle tension, heart rate, respiration rate, two types of sleep: rem and non-rem (nrem) Rem sleep: rapid eye movement sleep, called active sleep , dream sleep , or paradoxical sleep . Internally: intense brain activity, brain temperature rises rapidly, epinephrine release leads to increases in blood pressure, heart rate, and respiration, externally, body appears calm, large muscles become paralyzed, eyes dart round, dreaming occurs in 80% of people. In rem sleep, the brain conducts : consolidation of learning and memory (all night studying doesn"t help, perceptual or motor skills increase after 8-10 hours of sleep, the true function of rem sleep is a mystery. Sleep deprivation: causes, difficulty concentrating, general irritability, decreases cognitive functioning, impairs learning, long term health effects.
