The state of consciousness during recall of dreams is an important variable that has not been sufficiently studied, as it might throw light on the recovery process itself. Data from 3 related experiments are presented in which the recall of natural dreams of the previous night is compared for hypnosis and the waking state. The findings support the hypothesis that dreams are more readily...
Dream content elicited following the selective deprivation of rapid-eye-movement sleep was intensified compared to that elicited under nondeprivation conditions. This effect was observed both for repressers and for sensitizers, but was significant only for repressers. On nondeprivation nights, the dream periods of sensitizers were shorter and their dreams more intense than those of repressers.
Ss who typically fail to remember dreams at home (nonreporters) and Ss who frequently remember dreams (reporters) slept in the laboratory for 4 nights each. Gradual or abrupt awakenings were made at each EEG Stage-1 REM (dream) period. Although nonreporters and reporters did not differ in REM-period frequency or EEG patterns during sleep, nonreporters did report dreaming less frequently...
Three S s slept with their eyes taped open and their pupils chemically dilated while stages of sleep were monitored by EEG and eye movement recordings. Various objects were illuminated in front of S s' open eyes. Shortly following the stimulus presentations, S s were awakened and reports of dream experiences and other imagery during sleep were obtained. Although there were occasional instances...
210 EEG Stage 1 rapid eye movement period (REMP) awakenings were made during 40 nights of sleep to study the relationship between variations in dream reports and hypothesized correlates of such variations. Data analysis was done on an intra-individual basis with significance level being determined by the combined results of all 4 S s. Non-contemporaneousness of temporal reference of manifest...
Twenty-four S s were exposed to controlled presleep stimuli. On one experimental night, they saw a violent episode, on the other, a nonviolent episode, from a TV western series. Dreams were collected using Dement and Kleitman's electrophysiological methods, by means of which rapid eye movement (REM) periods were used to identify “dream” periods. REM reports following the violent episode were...
Thirteen subjects were studied for 4 nights of sleep by simultaneous recording of EEG, eye-movement potentials, heart rate, and respiration. The subjects were awakened from stage 1 sleep periods with rapid, conjugate eye movements (REM periods) and asked to describe any preawakening experiences (dream or thoughts). Respiratory rate was more irregular during REM periods which led to dream...
Numerous recent electroencephalographic studies have revealed the cyclical alternation of two distinct types of sleep (Dement and Kleitman, 1957a), which have been termed “fore-brain” and “hind-brain” sleep by Jouvet (1962). The former is accompanied by slow waves and spindles in the electroencephalogram (EEG) and the latter by a low-voltage, fairly fast EEG pattern; spasmodic, conjugate rapid...
Eleven subjects were awakened from dream periods (defined in terms of Dement and Kleitman's eye-movement criteria) and asked to describe their dream experience. Subjects more often believed that they were awake and/or thinking when the awakening was gradual than when the awakening was abrupt (P <.05). Reports in which the subject believed that he had been awakened from a dreamless sleep were...
Nightmare proneness has been associated with insomnia beyond nightmare frequency and neuroticism. The present study examined physiological hyperarousal as a potential process contributing to this relationship. Participants were 209 adults recruited from a university participant pool and an online community sample. Participants completed self-report measures of nightmare proneness, insomnia,...