The REM division of sleep is often correlated with dreaming . Just as most everything has different divisions or aspects to it, so too does dreaming. One aspect of dreaming that has been most interesting to study and easily distinguishable from others is lucid dreaming . Lucid dreams are thought to occur during REM sleep. They are often realistic and easily remembered and most interestingly it is possible to remain asleep and dreaming with a full awareness that it is happening.
Pierce states the contrary .
It is known that during REM sleep, cerebral activity increases to waking levels in many structures and there is an increase in autonomic nervous system activity. Newsweek also states that the brain stem fires an attack of nonsensical and chaotic impulses. These impulses leak into the forebrain where gray matter attempts to organize the neurological complexity. This is what instigates the type of dream that will unfold during REM sleep. Though REM sleep is a daily occurrence, it also has disorders associated with it that can be disruptive to normal living.