Essay About Rem Sleep And State Of Sleep

Dreams and Dreaming
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WE dream during a state of sleep called REM sleep. It is known that theta rythems sent from the
hippocampus, which determine if something is of essential value to the brain, are presesnt during REM sleep. Which
supports the idea that dreaming is connected to learning and that dreams are very important to the growing process.
Sleep is set in cycles, each containing four stages
STAGE 1: Light sleep begins- thata waves
STAGE 2: Light sleep continues- spindles and K complexes
STAGE 3: The onset of deep sleep- K complexes and delta
STAGE 4: Very deep sleep- delta waves
The first cycle is roughly 90 minutes. The brain decends through all four stages, and then acends back
through them, but on the way up REM sleep is experienced at stage 1. This REM period lasts about 10 minutesAfter
the first cycle the delta sleep may no occur at all. the brain will cycle through stage 1 and 2. As the night goes on the
proportion of REM to NON- REM increase, so by the end of the night you may dream for as much as 1 of the last 2
hours of sleep. Though for some of us we still sleep deeply even to the wee hours of the morning. The “deep
sleepers” Thus light sleeper are more likely able to remember dreams.
The Menangkabau tribes of Indonesia believe that the real life force, the sumanghat, actually leaves the body
in both dreams and serious illness. The shaman, or Dukun, must project his conscious
nes into the realm of dreams in
order to placate or harry the malicious malignant spirits who are hostile to the subject
Dreamtime of the Aboriginees is a primal state which embraces the creation of the world at the very dawn of