PSYC 191 Lecture Notes - Lecture 5: Non-Rapid Eye Movement Sleep, Parasympathetic Nervous System, Sympathetic Nervous System
Document Summary
During nrem sleep- sns inactive, pns active. During tonic rem sleep (only tonic properties present)- sns less active than. During phasic rem sleep- sns and pns activity levels vary wildly: sns activity usually due to arousal during dreams and rapid eye movements. Heart rate and blood pressure: decrease during nrem sleep- remain under homeostatic control to, during phasic rem, both fluctuate wildly keep steady and prevent fluctuation. May wake up when heart hate gets too high due to dreams: during nrem- slightly less compared to awake, during phasic rem- there are periodic increases in flow, even relative. Respiration: nrem- respiration is regular and deeper than when awake. Adjusts automatically to co2 levels: rem sleep- breathing rate varies substantially, relatively independent, cough responses are suppressed during all stages of sleep of co2 level (only weak correlation) Body temperature morning: body temp varies about 2 degrees overnight, lowest during early.
