Topic: microarousal brain state

The different behavioral states inherent to the wake-sleep cycle are reflected in the electrical activity of the cerebral cortex. Slow-wave sleep (SWS) and deep anesthesia are dominated by high amplitude slow-wave oscillations (SWO, < 1 Hz). With the increase in arousal, desynchronization and low-amplitude fast rhythms arise. While SWS and wakefulness dynamics have been comprehensively described, their transition remains relatively unexplored. Tort-Colet et al (2021) previously reported the emergence of an intermediate brain state, the microarousal brain state, characterized by the rhythmic