Psychology 1000 Chapter Notes - Chapter 6: Slow-Wave Sleep, Sleep Disorder, Theta Wave

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mike Atkinson

Document Summary

During that time, our brain activity/physiological responses change in a generally predictable way. Eeg recordings are used to study sleep: show a pattern of beta waves during awake and alert hours frequency (f) = 15 30 cycles per second (cps) (high: high frequency, low amplitude. As you close your eyes and become sleepy, the brain waves slow down and alpha waves occur f = 8-12 cps lower frequency than beta, but higher amplitude. Brain wave pattern becomes more irregular, and slower theta waves (f = 3. 5 7. 5 cps) increase lower frequency than theta, but similar in amplitude light sleep, can easily be awakened from it spend only a few minutes in stage 1 sleep. As sleep becomes deeper, sleep spindles (periodic 1-2 second bursts of rapid brain wave activity (f = Muscles are more relaxed, and the breathing and heart rate slow down. Harder to awaken from this stage of sleep. K complexes are often followed by sleep spindles.