The discovery of physiological indicators of dreaming (rapid eye movements [REM's] and a characteristic EEG pattern) by Kleitman, Dement, and their associates has led to a proliferation of quantitative dream research.1-3-17 Reliable data on the incidence, frequency, duration, and physiology of dreaming have been presented, and old questions of imagery, speed of dreaming, and the importance of external stimulation have been answered with findings that have led to more complex questions about the dream process9,16,17 Despite this increase in dream research, there has been little utilization of the physiological indicators for the quantitative study of dream content. The physiological indicators have not been exploited as a method for collecting a more complete and representative sample of dream narratives. This is surpris ing in that such a sample would appear to be a prerequisite for a thorough investigation of both dream interpretation and the relationship between dream content and personality.
DOMHOFF B, KAMIYA J. Problems in Dream Content Study With Objective Indicators: A Comparison of Home and Laboratory Dream Reports. Arch Gen Psychiatry. 1964;11(5):519–524. doi:10.1001/archpsyc.1964.01720290067008
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