PSYCH101 Chapter Notes - Chapter 8: Rapid Eye Movement Sleep, Non-Rapid Eye Movement Sleep, Circadian Clock

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Richard Ennis

Document Summary

Module 8 - sleep & dreams sleep irresistible tempter to whom we inevitably succumb; even while in deep sleep, the perceptual window in open slightly. Eeg recordings confirm that the brain"s auditory cortex responds to sound stimuli even during sleep; most info is processed outside your conscious awareness. When awakened during such an episode, the subject recalled having a dream. Delta waves larger waves of deep nrem-3 sleep. Genitals become aroused during rem except during very scary dreams in young men, sleep-related erections last longer than rem periods. Men w/ ed have sleep-related erections problem is not b/w legs. Motor cortex is active during rem sleep, but the brainstem blocks its messages essentially paralyzed cannot be easily awakened. Paradoxical sleep body internally aroused w/ brain activity, yet asleep and externally calm sleep cycle repeats every 90 mins for younger adults (more frequently for older adults) as night progresses, deep nrem-3 grows shorter and disappears.