CAS PS 101 Study Guide - Quiz Guide: Slow-Wave Sleep, Theta Wave, Sleep Spindle

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 101
• Professor: Joseph Harris

Document Summary

Reflects synchronous activity of millions of neurons. Principally measures activity of pyramidal neurons in cortex. Beta alert, excited, active, working; 13-30 hz. Alpha relaxed, reflecting , closed eyes, coma; 8-13 hz. Delta deep sleep; up to 4 hz. Beginning of sleep theta waves appear easy to wake, body relaxed, hypnogogic jerks common. People awakened often report they weren"t asleep. Stage 2 similar to and just after rem sleep except that dreaming is rare and it includes. Sigma waves (also called sleep spindles ) and k-complexes in the eeg. Sws rebound so it is thought to be a biological need. Newborns can sleep 16 hours / day with 8 hrs of rem. We get about 8 hrs of sleep with 2 hrs of rem. Most people when wakened report dreaming and when wakened from. Rem are best able to remember content of their dreams. Common for ages 2 6 (up to 15%) for several weeks at a time.