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Article
August 1969

Waking Fantasies Following Interrupted and Completed REM Periods

Author Affiliations

New York
From the Research Center for Mental Health, New York University, New York. Mr. Ellman is now at Montefiore Hospital, Bronx, NY.

Arch Gen Psychiatry. 1969;21(2):230-239. doi:10.1001/archpsyc.1969.01740200102014
Abstract

THE RECENT development of dream research shows a marked, though historically not uncommon, shift in emphasis from description and measurement to theorizing. Thus, the "rebound effect" found to result from REM sleep deprivation has been interpreted as evidence that REM sleep serves to clear the central nervous system of certain metabolic substances.1 The observation that neonates spend 50% or more of their total sleep time in stage 1 REM has led to the speculation that the endogenous stimulation provided by REM sleep is vital tp the maturation and differentiation of the central nervous system.2 The finding that the opossum, the most primitive mammal in existence, has sleep cycle characteristics not unlike man's has been considered to suggest a "sentinel" or "vigilance" function, preparing the sleeping organism for fight or flight.3

Each of these propositions, however, provides a rationale for

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