K-complexes appear during the second stage of this state, whose fifth stage manifests in tonic and phasic categories.
K-complexes appear during the second stage of this state, whose fifth stage manifests in tonic and phasic categories. Its first stage is marked by the disappearance of alpha waves and the appearance of theta waves, while its later stages are categorized by long, slow delta waves. This state's fifth and final stage is characterized by increased neuron activity and rapid eye movements, as well as vivid dreams. For 10 points, name this state, prevented by insomnia.
K-complexes appear during the second stage of this state, whose fifth stage manifests in tonic and phasic categories.
sleep