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Psych Exam 2
consciousness and sleep
Question | Answer |
---|---|
Consciousness | our awareness of ourselves and our enviroment |
Biological Rhythm | physiological fluctuations- sleep and wake, hormone levels, temp, alertness, brainwaves |
Circadian Rhythm | our natural rhythm for sleeping behaviors. reduces melatonin -> alertness, increase melatonin -> sleepiness |
Sleep Stage 1 | sensory experiences (hallucinations), lasts about 5-10 mins, theta waves, hypnic jerks, twitching, hypnagogic hallucinations |
Sleep Stage 2 | sleep spindles, theta waves, ,reduces heart rate, blood pressure and body temp, muscles relax, 65% of sleep is in this stage |
Sleep Stage 3 | trasitional stage, large slow delta waves |
Sleep Stage 4 | deep sleep, bonded with sleep stage 3 |
Sleep Stage 5 | REM sleep, 10 min first time, 60 mins end of night, vivid dreaming, body completely relaxed, brain very active, beta waves, blood pressure and heart rate rise |
Hypnagogic Hallucinations | lucid dreamnin, hallucinations, out of body experiences and sleep paralysis |
Hynic Jerks | twitching |
REM Rebound | skip all other stages and drop right to REM when deprived of REM sleep |
Theories of Sleep | sleep protects- survival; sleep recuperates- body repairs itself; memory- helps us remember and learn; sleep and growth- growth hormone secreted in REM |
Somnambulism | sleepwalking |
Nightmares | REM sleep |
Night Terrors | fear and agression; screaming and crying; heart rate and breathing rises |
Insomnia | can't fall asleep, cant stay asleep, don't sleep very long |
Narcolepsy | breif periods where body suddenly falls into REM sleep |
Sleep Apnea | throat closes and stop breathing for short periods or time and constantly waking up |