Psychology / Psych 0314 · Atom · ~20 seconds
NREM Stage N2
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State
Stage N2 is a deeper non-REM stage marked by sleep spindles and reduced responsiveness to the environment.
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Bursts of rapid brain activity appear against a slower background as body temperature continues falling.
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N2 occupies the largest share of a night. Most sleep is neither the lightest nor the deepest kind.