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Implications for a Theory of the D-State

GORDON G. GLOBUS, MD

Arch Gen Psychiatry. 1966;15(6):654-659.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

MANY WORKERS have repeated the observation by Aserinsky and Kleitman, in 1953,¹ of the cyclical recurrence of a physiologic state characterized by a low-voltage fast electroencephalogram (EEG), periodic bursts of rapid eye movements (REM), and a decrease in muscle activity.² Generally, there are four to five cycles per night and the predominance of slow-wave sleep in the first half of the night is followed by an increased incidence of REM periods during the last half of the night, in a pattern which is said to be fairly characteristic for a given individual.^3,4 The earlier studies of Dement and Kleitman,³ as well as the more recent work of Williams et al,⁴ have considered the REM cycle in relation to laboratory time, ie, time 0 is when the subject goes to bed and time is measured successively thereafter in terms of hours in the laboratory. The . . . [Full Text PDF of this Article]

Author Affiliations
BOSTON

From the Division of Psychiatry, Boston University School of Medicine.

Footnotes
Submitted for publication May 13, 1966.

Presented in part before the meeting of the Association for the Psychophysiologic Study of Sleep, March 26, 1966, Gainesville, Fla.

Reprint requests to Clinical Research Branch, National Institute of Mental Health, 5454 Wisconsin Ave, Bethesda, Md 20014.

In this paper, the terminology proposed by Dr. Ernest Hartmann will be adopted where indicated, as the designation "D-state" to refer to a state of the organism characterized by a low-voltage fast EEG, the occurrence of REMs, and decreased muscle potentials seems least prejudicial as to emphasis or mechanism.6

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