HLTH173 Study Guide - Final Guide: Master Clock, Epigenetic Clock, Memory Consolidation

• School: University of Waterloo
• Department: Health Studies
• Course: HLTH173
• Professor: Elham Satvat

Document Summary

Yellow red group of neurons control the wakefulness. Green balance between sleep and wakefulness. Two things control our sleep circadian cycle (master clock) which is in the hypothalamus and is sensitive of light . Signaled awakening used in research but still not sensitive because patients only click button when they are alert. Ecg based on movement catches the movement and gives the graph and shows the deeper sleep still not sensitive cause it only depends on movement ecg recently used for sleep measurement. Psg most and best and gold standard of measuring sleep. Stage - twitching and turning, stage 2 deeper than stage 1 and stage 3 is the deepest cause brain wave very slow, 4th stage rem. Rem: brain activity like that of when you"re awake; muscle paralyzed; dreaming occurs. You dream close to when you wake up cause it goes like stage 1, 2, 3, rem and again 1, 2, 3, rem and so on.