15. Brain Waves and Stages of Sleep

16. Brain Waves and Stages of Sleep Beta Waves – Awake, Alert Alpha Waves – Drowsy but awake Theta Waves – Drowsy sleep, hallucinations Sleep Spindles – Brief spurts of brain activity, influenced by the environment K-Complex – Stage where sleep spindles occur Delta Waves – Deep sleep, slow waves, hard to awaken Deep Delta Waves- Even deeper sleep REM- Rapid Eye Movement, Paradoxical Sleep, brain waves look like Beta, dreams happen during this stage