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22 Cards in this Set
- Front
- Back
What is conciousness?
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The immediate awareness of internal and external stimuli.
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What does "stream" of conciousness mean?
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It means that conciousness is continuous.
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What are circadian rhythms? Give an example.
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Circadian Rhythms are the biological processes that systematically vary over a period of about 24 hours. Sleep/Wake cycles are examples of Circadian Rhythms.
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What is the Suprechiastmatic Nucles?
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The SCN is the internal pacemaker that governs the timing of circadian rhythms, including sleep/wake cycles and the mental alertness cycle.
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What is Melatonin?
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A hormone manufactored by the pineal gland that produces sleepiness.
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What is an Electroencephalograph?
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An instrument that uses electrodes placed on the scalp to measure and record the brain's eletrical activity.
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What is an Electroencephalogram?
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The EEG is a graphic record of brain activity produced by an electroencephalograph.
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What is REM Sleep?
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REM (Rapid Eye Movement) Sleep is the type of sleep during which dreaming usually occurs and voluntary muscle activity is supressed. It is during this time that memories are consolidated.
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What is NREM Sleep?
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NREM (Non-REM) Sleep is quiet, typically dreamless sleep in which rapid eye movements are absent. NREM sleep is divided into four stages.
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What are Sleep Spindles?
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Sleep Spindles appear during NREM Phase 2 sleep, they are brief bursts of brain activity that last for a second or two.
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What are K-Complexes?
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K-Complexes are single high-voltage spikes in brain activity.
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What is Sleep Apnea?
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Condition where the sleeper repeatedly stops breathing during sleep.
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What is RLS?
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Restless Leg Syndrome, persons complain of an unpleasant creeping, crawling, tingling, itching, or prickling sensation deep inside their lower legs accompanied by an irresistible urge to move.
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What is Insomnia?
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Condition where a person ahs trouble sleeping, or staying asleep.
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What is Somnambulism?
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Sleep-Walking
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What are Night Terrors?
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Like Sleep-Walking, occur during stage 3 or 4 of NREM sleep.
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What are parasomnias?
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A general category of sleep disorders that involve arousal or activation during sleep or sleep transitions (Example : Bruxism)
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What is REM Sleep Behavoir Disorder?
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A sleep disorder in which the sleeper acts out his or her dreams.
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What is Narcolepsy?
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Narcolepsy is a sleep disorder characterized by excessive daytime sleepiness and brief lapses into sleep throughout the day.
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What is Cataplexy?
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A sudden loss of voluntary muscle strength and control that is usually triggered by an itnense emotion. Cataplexy usually accompanies Narcolepsy.
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What is Sleep Thinking?
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Repetitive, bland, and uncreative ruminations about real-life events, during sleep.
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What is a Dream?
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A story-like episode of unfolding mental imagery during sleep.
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