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August 1969, Vol 21, No. 2 >
Article | August 1969

Waking Fantasies Following Interrupted and Completed REM Periods

Harry Fiss, PhD; Steven J. Ellman, MA; George S. Klein, PhD
Arch Gen Psychiatry. 1969;21(2):230-239. doi:10.1001/archpsyc.1969.01740200102014.
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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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AAM 2010;304:1493-1495.
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