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Failure to Recall Dream Content: Contentless vs Dreamless Reports

David B. Cohen

Perceptual and Motor Skills June 1, 1972 DOI: 10.2466/pms.1972.34.3.1000 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Topics Dreaming
Key findings Contentless and dreamless reports are functionally different phenomena, as shown by their differing distributions across menstrual cycle phases, recording nights, and total sleep time.

Abstract

Data from three separate studies support the hypothesis that contentless and dreamless reports obtained in dream-recall experiments are functionally, as well as descriptively, different phenomena. Distributions of percentages of contentless and dreamless reports (a) for different phases of the menstrual cycle, (b) over a three-day recording period, and (c) for length of total sleep time were qualitatively different. It is suggested that, at minimum, investigators should distinguish between contentless and dreamless reports rather than viewing them as a homogeneous nonrecall phenomenon.