PSYC 1000 1st Edition Lecture 9 Outline of Last Lecture I. Perceiving DepthII. Monocular Depth CuesIII. The Auditory System IV. Inner Ear V. Gustatory (taste) SystemVI. Olfactory System (smell)VII. Other Sensory SystemsOutline of Current Lecture II. SleepIII. Biological Rhythms IV. Stages of SleepV. REMCurrent LectureSleepBiological necessitates that cannot be fought for more than a few days. Discussion: Why do we need sleep? Evolutionary: predators and cliffs, things we try to avoid, sleep because we cant see at night Rest and Recuperation: Helps body and brain rest Memory: sleeps helps memory strongerCognition/Neural Pathways: brain stays active to keep connections and pathways Growth Hormones: Children release growth hormones while sleepingBiological Rhythms: Annual, monthly, Circadian 90 minute sleep cycleThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Stages of SleepStudied by:EEG: measures electic encephalogram brain (measure electricity in the brain) (sleep spindles: spike of function)EMG: electromyogram Muscle movement EKG: Electrocardiogram Heart rateEOG: Electrocculogram eye movement REM SleepParadoxical Sleep (stage 5): REM stage. Stage when dreaming, about 90 minute cycles. - Body is paralyzed from neck down during REM sleep. (So you don’t act out dreams)As we get older, we need less time sleeping and less REM
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