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PsychologyTest3 - Psychology Test#3 Consciousness Sleep and...

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Psychology Test #3 Consciousness, Sleep, and Dreams * Consciousness : awareness of ourselves and the environment (What does consciousness do for us, how does it help us? –Helps us make wise decisions in the future based on the past) Arises from evolutionary perspective—helps our survival. * Sleep : Reversible loss of consciousness; natural and periodic -Biological Rhythms *Annual cycles (throughout the year, our bodies will change with respect to appetite, sleep length, and mood; when seasons change is when these aspects will vary.) With extreme change in mood, Seasonal Affect disorder can result—may require medication. *28 day cycles (mostly referenced to women, although men can be deemed as experiencing fluctuations in mood and body temperature) *24 hour cycle (varying alertness, body temperature, varying degrees of growth hormone secretion) *90 minute cycles (amount of time it takes to move through sleep stages) Sleep * Circadian Rhythm : variations in body temperature and awakefulness in 24 hour period -Asleep, as it gets closer to morning -Most productive when it’s midday; your body peaks, you’re thinking the clearest, and you’re most alert -Dip in the middle of afternoon in body temperature -Night body temperature drops the most -(ex: owls vs. larks; Larks-early rise and early bedtime; owls-late rise and late bedtime; are productive at differing times during the day, but both possess same basic pattern) Most people fall somewhere in the middle, patterns change with age (college students resemble owls and elderly resemble larks -at certain points in life you will be forced to be an owl/lark -affect of light on sleep significant because when it is dark, melatonin is released, and this creates drowsiness * Afternoon Naps : Mid-afternoon dip in temperature creates a more drowsy and less alert feeling, most people feel like they should be sleeping. Researchers have concluded that due to natural dip in afternoon, people would sleep during this time if they could. (3-5 p.m. = best time to sleep) Some suggestions that afternoon nap is built into circadian rhthyms. On average, most Americans take 1 or 2 naps a week. Extremes—25% of people asserted that they never took a nap, do not nap. 33% of Americans said they nap 4 or 5 times a week. (What is correct amount of time allotted for a nap? –about 30-90 minutes is suggested, because that’s how long it takes to get through a sleep cycle.) *Sleep Stages -Awake - Stage 1 : Point when this stage is reached is unremembered. (amnesia of that moment) Characterized by slow breathing and irregular brain waves. Body may jerk during this stage.
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- Stage 2 : About 20 minutes later, body moves from stage 1 to 2. During stage 2, you can easily be awoken. You will dream, but not same level as REM cycle; very ordinary and everyday events. -
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PsychologyTest3 - Psychology Test#3 Consciousness Sleep and...

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