The role of the spontaneous and evoked k-complex in good-sleeper controls and in individuals with insomnia.

Abstract

Spontaneous and evoked K-complexes are believed to reflect a mechanism of sleep protection, yet their functional role remains a subject of debate. Studying the K-complex in primary insomnia, for which sleep protection appears to be of central importance, may provide further insight on its role. The purpose of the present study was to determine the role of spontaneous and evoked K-complexes in good sleepers and to investigate its role in primary insomnia.