Behavioral and Brain Sciences

Short Communication

REM sIeep = dreaming: The never-ending story

Corrado Cavallero a1
a1 Dipartimento di Psicologia, Universita' degli studi di Trieste, 34134 Trieste, Italy [email protected]


It has been widely demonstrated that dreaming occurs throughout human sleep. However, we once again are facing new variants of the equation “REM sleep = Dreaming.” Nielsen proposes a model that assumes covert REM processes in NREM sleep. I argue against this possibility, because dream research has shown that REM sleep is not a necessary condition for dreaming to occur.