PSYC-101 Lecture Notes - Lecture 4: Theta Wave, Delta Wave, Hypnosis
Document Summary
Describe each of the 5 stages of sleep (include the types of brain waves involved): Stage 1: light sleep: brain enters a high-amplitude, slow, regular wave form called theta waves. Stage 2: sleep spindles: brief bursts of activity among theta waves. Stage 3: transitional stage: 20-50% of brain pattern involves large-amplitude, slow delta waves. Stage 4: deep sleep: >50% of brain activity involves delta waves, growth hormones released. Insomnia: persistent inability to fall asleep, stay asleep, or get good quality of sleep. Narcolepsy: overpowering urge to fall asleep that may occur while talking or standing up. Lsd, pcp, ecstasy or meth, thc or maijuana nervous system. Excite neural activity and speed up body functions. Reduce neural activity and slow body functions; suppress pain by binding to receptor sits for endorphins. Distort perceptions and evoke sensory images in the absence of sensory input.
