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SCORING SLEEP: THE RULES FOR LOOKING INSIDE
Floriana Boghez and Ioana Mandruta
ABSTRACT
Polysomnography is the most comprehensive sleep study, a multi-parametric recording test (electroencephalography, electrooculogram, chin and limbs electromyogram, respiratory and cardiac functions and permanent videorecording), used as an important diagnostic tool for the sleep disorders. Sleep architecture or the sleep macrostructure is a term used to describe the divisions of sleep into specific sleep stages using electro encephalographic (EEG), electrooculographic (EOG) and electromyographic (EMG) criteria: NREM (non-rapid eye movements) stages – N1, N2 and N3, and REM (rapid eye movements) stage.
Keywords: polysomnography, scoring sleep, rapid eye movement sleep, sleep stages, sleep events, arousals, sleep epoch
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