Relier Pairs Adaptable Brain,Sleep,&DreamsVersion en ligne Important terms, and subjects that you should know about how your brain adapts, and what happens when you sleep and dream. par Gisselle Padilla 1 What is a circadian rhythm? 2 Drugs considered a stimulant? 3 What's the difference between alpha, theta waves? 4 Stage where you have rapid eye movements this is where most dreams occur. Which stage is this? 5 What symptoms of hallucinogens? 6 Is Id conscious, or unconscious? 7 Is ego unconscious, or conscious? 8 What are the benefits of sleeping? 9 What stage do sleep terrors happen in? 10 What are examples of depressants? Unconscious Conscious Energy conservation, repairing of cells, and pituitary releases growth hormones. REM stage. 24 to 25 hour biological clock that tells you when you should go to sleep, and when to wake up. One is awake and relaxed.While the other has slow regular waves. morphine, codeine, oxycodone, heroin, alcohol mild delusions, relaxation, panic, and reduced motivation. caffeine, nicotine, cocaine, methamphetamine. Stage 3 NREM.