CAMS-UA 170 Lecture Notes - Lecture 3: Hypersomnia, Electrooculography, Insomnia
22 Aug 2016
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Inferences: destruction of: diagonal hatching = hypersomnolence, horizontal hatching = insomnia, suggested that these 2 areas = neural circuitry of sleep/wakefulness. Upper transection of cat brain puts it into coma; there is an interruption of ascending sensory inputs. 1949 ascending reticular activating system: moruzzi and magoun. By stimulating this part of brain, can awaken. Electrodes in cat brains, zap, desynchronized eeg (awake state) Psychoanalysis (dreams were thought to be necessary for health) Rapid eye movements & rem sleep discovered in 1951. Infant was studied and noticed eye movements when sleeping. During rem, muscle activity falls (no energy) Id important brain wave characteristics of wakefulness, nrem, and rem sleep: define sleep cycle, describe how the sleep cycle changes throughout sleep (one stage to another) and throughout lifetime of a human. Three states of being: awake, non-rem (nrem, rem. Sleep latency: amount of time it takes to fall asleep.
