Behavioral and Brain Sciences

Short Communication

Critical brain characteristics to consider in developing dream and memory theories

Adrian R. Morrison a1 and Larry D. Sanford a2
a1 Laboratory for Study of the Brain in Sleep, Department of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104-6045
a2 Division of Anatomy, Department of Pathology and Anatomy, Eastern Virginia Medical School, P.O. Box 1980, Norfolk, VA 23501


Dreaming in sleep must depend on the activity of the brain as does cognition and memory in wakefulness. Yet our understanding of the physiological subtleties of state differences may still be too primitive to guide theories adequately in these areas. One can state nonetheless unequivocally that the brain in REM is poorly equipped to practice for eventualities of wakefulness through dreaming, or for consolidating into memory the complex experiences of that state.

[Hobson et al., Nielsen, Solms, Vertes & Eastman, Revonsuo]