Тема:
sleeps and dreams (сны и сновидения) область психология + перевод текста на русский язык
Год сдачи в учебное заведение: 2012 г.
Город в котором сдавалась учебный материал Волгоград.
Стоимость данной работы без скидки: 600 руб. (подробнее о скидках вам раскажет менеджер по работе с клиентами)
Количество страниц: 12 стр.
Вид работы: Реферат.
Содержание:
Заданная тема реферата: sleeps and dreams (сны и сновидения) область психология + перевод текста на русский язык
Introduction 3
1. How Much Sleep do People Need? 4
2. Functions of Sleep 5
3. Interpretation of Dreams 6
Conclusion 8
Introduction 3
1. How Much Sleep do People Need? 4
2. Functions of Sleep 5
3. Interpretation of Dreams 6
Conclusion 8
+ перевод
Выдержка из работы
Stage 1 can be considered a transition period between wakefulness and sleep, lasting around 5-10 minutes. At this stage, the brain produces high amplitude theta waves, which are very slow brain waves.
Stage 2 lasts for approximately 20 minutes. The brain begins to produce bursts of rapid, rhythmic brain wave activity known as sleep spindles. Body temperature starts to decrease and heart rate begins to slow.
Stage 3 is a transitional period between light sleep and a very deep sleep. At this stage, deep, slow brain waves known as delta waves begin to emerge.
Stage 4 is a deep sleep that lasts for approximately 30 minutes. It is sometimes referred to as delta sleep because of the slow brain waves known as delta waves that occur during this time.
Most dreaming occurs during the fifth stage of sleep, known as rapid eye movement (REM) sleep. REM sleep is characterized by eye movement, increased respiration rate and increased brain activity. REM sleep is also referred to as paradoxical sleep because while the brain and other body systems become more active, muscles become more relaxed. Dreaming occurs due because of increased brain activity, but voluntary muscles become paralyzed (Kendra, 2010).
Sleep experts recommend that adults get 8 hours of sleep at night, but according to the National Sleep Foundation (2009), adults in the United States typically get about 6.8 hours of sleep. About one third get 6 hours or less of sleep a night during the workweek. One third admits that lack of sleep impairs their ability to function during the day, and nearly one in five admits to falling asleep at the wheel (Spencer A. Rathus, 2008, p.90).
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