Psychology Paper on Sleep

Topics: Dream, Sleep, Dreaming Pages: 3 (897 words) Published: March 28, 2012
There are four stages of Non-REM sleep. During Stage 1, the eyes are closed. One can be awakened without difficulty; however, if aroused from this stage of sleep, a person may feel as if he or she has not slept. The heart rate slows and the body temperature decreases during Stage 2. At this point, the body prepares to enter deep sleep. Stages 3 and 4 are deep sleep stages, with stage 4 being more intense than Stage 3. These stages are known as slow-wave, or delta, sleep. If aroused from sleep during these stages, a person may feel disoriented for a few minutes. REM sleep is the portion of sleep when there are rapid eye movements. Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. REM sleep is characterized by a number of other features including rapid, low-voltage brain waves detectable on the electroencephalographic (EEG) recording, irregular breathing and heart rate and involuntary muscle jerks. A night terror is a sleep disruption that seems similar to a nightmare, but with a far more dramatic presentation. A nightmare is merely a frightening or unpleasant dream. If you asked Sigmund Freud "why do we dream?" he would say our dreams are a secret outlet for these repressed desires. Freud used dream analysis to interpret the underlying language of dreams - which is very different from normal conscious thinking. I agree with this theory because in our society, people have the tendency to hold back their urges and repress their impulses. However, these urges and impulses ultimately must be released in some way; they have a way of coming to the surface in disguised forms. Most urges and impulses are usually released through an individual's dream. One major class of drugs are stimulants, drugs that stimulate the brain and central nervous system, speeding up communication between the two. They usually increase alertness and physical activity. They include drugs such as amphetamines, cocaine, crack and some inhalants like amyl or...
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