PSYO 2220 Chapter Notes - Chapter 8: Polysomnography, Parasomnia, Insomnia
4 Apr 2018
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Document Summary
Sleep can be divided into 2 broad stages: slow-wave state (deep sleep), rem (when dream occurs). Normal people spend about 20% of their sleep in seep sleep, 30% dreaming, and. Sleep disorders are commonly found in people with psychological disorders, such as. Sleep disorders can trigger the onset of a psychological disorder by making everyday activity, feelings, etc harder to work through. Sleep disorders can be divided into 2 categories dyssomnias and parasomnias. Dyssomnias involved difficulties getting enough sleep and complains of the quality of sleep. Parasomnias are characterized by abnormal events that occur during sleep, such as nightmares and sleepwalking. Sleep habits can be determined only by a polysomnographic evaluation (psg). People are considered to have insomnia if they have difficulties falling asleep, if they wake up frequently or too early and cannot go back to sleep. It is also included if a person slept a good amount of hours but yet not feel rested the next day.
