Dictionary of Hallucinations

REM DREAM

REM dream: translation

The acronym REM dream stands for rapid eye movement dream. It is used to denote a " dream occurring during REM sleep. Dreams may also occur during non-rapid eye movement (NREM) sleep, but this is believed to happen less frequently. Physiologically, REM dreams are associated primarily with increased neurophysiologi-cal activity in specialized sensory cortical areas, in the limbic cortex, the pedunculus cerebri, and the thalamus.
References
Hartmann, E. (1998).Dreams and nightmares. The new theory on the origin and meaning of dreams. New York, NY: Plenum Trade.