Kkomplex
A K-complex, sometimes written as Kkomplex, is a distinctive waveform observed on electroencephalography (EEG) during sleep. It typically appears as a single, large deflection consisting of a sharp negative spike followed by a slower positive component, lasting several hundred milliseconds and reaching amplitudes on the order of 100 to 200 microvolts in central to frontal regions.
K-complexes occur predominantly during non-rapid eye movement sleep, especially stage N2. They can arise spontaneously or
Physiologically, K-complexes are generated by thalamo-cortical networks and are thought to reflect a transient arousal that
Functionally and clinically, K-complexes are a defining feature of stage N2 sleep and serve as a marker
In summary, the K-complex is a characteristic N2 sleep waveform generated by thalamo-cortical activity, reflecting a