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K complex

a brief, high-amplitude spike-and-rebound waveform recorded in the scalp electroencephalograph during sleep onset. K complexes and sleep spindles occur normally during Stage 2 NREM sleep (see sleep stages). It is postulated that they may suppress sleep disruptions and coordinate memory consolidation. K complexes can also be involved in nocturnal seizures.

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Psychology term of the day

May 8th 2024

deadly nightshade

deadly nightshade

see belladonna alkaloid.