PSYCH 240 Lecture Notes - Lecture 7: Sleep Deprivation, Delta Wave, Night Terror
Document Summary
Facts: everyone dreams, the difference lies in whether they remembered it or not; sleepwalkers are not acting out their dreams; Circadian rhythm is our biological clock that runs on a 24-hour day cycle. But isolated individuals without clocks or daylight usually adopt a. And if we experience jet lag from travelling, our biological clock will reset to adapt. After about 1. 5 hours of sleep, our eyes start to move rapidly and jerky accompanied by increased brain activity. This is called rem sleep (rapid eye movement). The only time you dream is if you"re in rem sleep, but you can be in. Except that rem periods get longer over the night and stage 4 and 3 don"t happen in the couple of hours before you wake. Sleep-deprived effects include: suppressed immune systems, decreased creativity, slight hand tremors, slow performance and misperceptions on monotonous tasks. But a sleep-deprived person does as well as anyone on highly motivating tasks (running, arcade games, boxing)
