NREM Sleep is the abbreviations of Non-rapid eye movement sleep which is a type of sleep that is divided into four stages. Usually about 75\% of the night is spent in NREM Sleep. Non -REM sleep lasts about four to six hours.
The four (4) stages of Non-rapid eye movement sleep are:
1) In stage one of the sleep cycle brain waves are referred to as theta waves. They consist of a 4-7 cycle per second rhythm.
2) In stage 2 of sleep, the brain generates sleep spindles. Spindles are a 12-14 rhythm that lasts a half of a second. Sleep talking usually occurs during stages 1 and 2 of sleep. Sleep talking is mumbled and usually not understandable.
3) Delta waves are produced from the brain in the third stage of sleep. These brain waves become slower when the sleep cycle begins. During this cycle your heart rate, blood pressure, and arousal decline.
4) Stage four is very similar to stage 3 because Delta waves continue in the brain. During this stage of sleep most dreams and nightmares occur.
|Non-rapid eye movement sleep at psychology-glossary.com||■■■■■■■■■■|
Non-rapid eye movement sleep (NonREM, NREM) refers to a type of sleep that is divided into four (4) stages. . . . Read More
|Non-REM sleep at psychology-glossary.com||■■■■■■■■■■|
Non-REM sleep (NonREM sleep or just NREM) which is another name for Non-rapid eye movement sleep refers . . . Read More
|NREM sleep (Non–rapid eye Movement sleep) at psychology-glossary.com||■■■■■■|
NREM sleep (Non–rapid eye Movement sleep): NREM sleep (Non–rapid eye Movement sleep ) includes sleep . . . Read More
|Theta rhythms at psychology-glossary.com||■■■■■■|
Theta rhythms refer to brain waves with a frequency of about 6 cycles per second. - Humans do not produce . . . Read More
|Rapid eye movement sleep at psychology-glossary.com||■■■■■■|
Rapid eye movement sleep also known as REM is a stage of sleep that accounts for approximately two (2) . . . Read More
|Theta waves at psychology-glossary.com||■■■■■|
Theta waves refer to brain waves with a frequency of 4-7 cycles per second that are produced during light . . . Read More
|PSG at psychology-glossary.com||■■■■■|
PSG which is the short form of Polysomnography refers to the recording of different biological factors . . . Read More
|Polysomnography (PSG) at psychology-glossary.com||■■■■■|
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|Pons at psychology-glossary.com||■■■■|
Pons refers to the part of the brain that controls REM and NREM sleep. Pons is a structure in the hindbrain . . . Read More
|Deep sleep at psychology-glossary.com||■■■■|
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