Source: wikibot/k-complex
= K-complex
{wiki=K-complex}
A K-complex is a specific type of brain wave that can be observed in an electroencephalogram (EEG) during sleep, particularly in NREM (non-rapid eye movement) sleep. It is characterized by a sudden intense burst of brain activity, typically lasting around 0.5 to 1 second, followed by a period of lower amplitude brain waves.