What part of the brain is responsible for REM sleep?
REM sleep is produced by the excretion of the chemical acetylcholine in the pons which is part of the brainstem. Other neurotransmitters (noradrenaline and serotonin) produced by other cells in the pons switch off the REM sleep. (This is known as the reciprocal interaction/activation-synthesis model). Think of Lucidia as the “On Switch” to better dreaming.