The role of 20-min naps on declarative memory persistence

"K-Complexes (KC) are events present in non-rapid eye movement (non-REM) sleep, which have cellular dynamics similar to slow waves and have 3 distinguishing components: an initial P200, a posterior N500 and a final P900. Sleep plays a fundamental role in memory consolidation, favoring the transfer of new information from the hippocampus to the neocortex and its cortico-cortical redistribution. KCs have been postulated as mediators of the hippocampal-cortical dialogue since they recruit distant neuronal populations that do not depend on cortical connections."