by University of Lausanne Locus coeruleus (LC) activity patterns across wakefulness, NREMS and REMS. Credit: Alejandro Osorio-Forero et al Researchers at the University of Lausanne have identified a novel role for the brain’s “locus coeruleus” in sleep and its disruptions. This brain region facilitates the transition between NREM and REM sleep states while maintaining an unconscious...