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Lecture 15

Psychology 1000 Lecture 15: nov 15 lec notes

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Psychology 1000

Psychology 1000 November 15, 2016 Dreams Questions to be Answered: ➢ Sleep disorders What causes sleep disorders? ➢ Better sleep ➢ Dream content How can I get a better sleep? Next time: learning What do we dream about? Scan: finish chapter 6 + 226-233 Sleep Disorders… Sleep Apnea: • Interruption in breathing during sleep • Normal… but people with disorder to not start breathing again unless they wake up • Severe o May stop for about 1 min, hundreds of times in the night o Leads to Insomnia • Causes: o Obstruction of air passage (loud snores) o Abnormal brain function (problem in pons) o SID (sudden infant death- form of sleep apnea) Narcolepsy: • Affects 2-8 percent • Person suddenly falls asleep at odd times • Muscle weakness • Begins with REM • Problems with falling down, can hurt themselves • Causes: o Abnormal timing cycle for REM o Depleted supply of hypocretins (involved in arousal, wakefulness) o Often triggered by strong emotions Parasomnia: • Various sleep related problems • Not a disorder • Things such as… o Sleepwalking: ▪ 15% of children and adolescents ▪ rare in adults ▪ many waking actions performed out of awareness ▪ occurs in stage 4- not part of a dream ▪ difficult to wake up ▪ confused and disoriented ▪ tends to run in families o sleep talking: ▪ occurs in lighter stages (1 or 2) ▪ sometimes in REM ▪ sensitive to external world o night terrors: ▪ 4% of children ▪ when asleep, child suddenly sits up, screams ▪ dilated pupils ▪ heart rate and breathing high ▪ panic ▪ note: not associated with dreams…occurs in stage 3 or 4 ▪ difficult to wake ▪ disappears with age o exploding head syndrome: ▪ 20% of university students ▪ when falling asleep or waking up ▪ loud imagined noise ▪ bomb, gunshot, cymbal ▪ auditory cortex activated all at once, rather than inhibited o sleep eating: ▪ “wake up” at night ▪ eating performed out of awareness ▪ typically sleep walking as well (stage 3 or 4) ▪ high cal foods consumed much faster than normal ▪
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