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DeCS
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Descriptor English:
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Sleep Stages
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Descriptor Spanish:
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Fases del Sueño
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Descriptor Portuguese:
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Fases do Sono
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Synonyms English:
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N1 Sleep
N1-Sleep
N2 Sleep
N2-Sleep
NREM Stage 1
NREM Stage 2
Sleep Stage
Stage, Sleep
Stages, Sleep
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Tree Number:
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F02.830.855.796
G11.561.803.754
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Definition English:
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Periods of sleep manifested by changes in EEG activity and certain behavioral correlates; they formerly included Stage 1: sleep onset, drowsy sleep; Stage 2: light sleep; Stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep. In 2007, sleep stages were redefined by The American Academy of Sleep Medicine (AASM) as: N1-N2 (sleep onset - light sleep), N3 (SLOW-WAVE SLEEP), and REM SLEEP. |
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History Note English:
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1972 (1969)
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Allowable Qualifiers English:
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Record Number:
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13277
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Unique Identifier:
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D012894
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Occurrence in VHL:
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Similar:
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DeCS
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