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Unformatted text preview: Module 10.2 Sleep and Dreams Circadian rhythm: rhythm of activity and inactivity lasting about a day Rising and setting of the sun provide cues to reset our rhythm, but we generate the rhythm ourselves People w/ a faster than average rhythm go to sleep earlier than other people and wake up earlier Sleep deprivation produces a pattern of progressive deterioration superimposed on the normal circadian cycle of rising and falling body temperature and alertness Sleepiness depends partly on how long one has gone without sleep and partly on the time of day Preferred bed time shifts later and later until age 20, and then slowly starts reversing Memories of older adults about the same as young adults in the morning Memories of younger adults remained steady or increase later in the day but older adults' memories deteriorated Jet lag : a period of discomfort and inefficiency while your internal clock is out of phase with your new surroundings In companies when workers have to rotate shifts, it is better to transfer workers to later shift...
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- Spring '08