K-complex

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English[edit]

Stage2sleep new.svg

Etymology[edit]

EB1911 - Volume 01 - Page 001 - 1.svg This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page as described here.

Pronunciation[edit]

  • IPA(key): /ˈkeɪˌkɒmplɛks/

Noun[edit]

K-complex (plural K-complexes)

  1. (electrencephalography) A waveform that occurs approxmiately every 60–100 seconds during stage 2 of NREM sleep, and which consists of a brief negative high-voltage peak (usually >100µV), followed by a slower positive complex ~350–550ms, and at 900ms a final negative peak.

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