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