Imagination, Cognition and Personality
June 1, 2009
Michael Schredl
Dream recall is naturally a prerequisite for eliciting dream content. Therefore it is of importance to study factors (e.g., personality traits) that might affect dream recall because these factors might bias the content analytic findings in the field of dream research. The present findings indicate that different aspects of dream recall (dream recall frequency, dream recall detail, long-term...
Psychiatry Research
May 30, 2009
Michael Schredl, Mathias Berger, Dieter Riemann
Trimipramine is a sedating tricyclic antidepressant which is not only effective in the treatment of depression but also in primary insomnia. In contrast to most other antidepressants, trimipramine does not affect rapid eye movement sleep. In a large sample of depressive outpatients (N = 3926), the effect of trimipramine on dream recall and dream emotions was studied. The effect of trimipramine...
Culture, Medicine, and Psychiatry
March 27, 2009
C. Jacobson
This article examines nightmare narratives collected as part of a person-centered ethnographic study of altered states of consciousness (ASCs) and supernaturalism in a mainland Puerto Rican community in the late 1990s. Utilizing a descriptive backdrop informed by cross-cultural studies of ASCs and highlighting the relevance of recent insights from the cognitive sciences of religion and from the...
Sleep
March 1, 2009
Katrina Stuart, Russell Conduit
There is debate in dream research as to whether ponto-geniculo-occipital (PGO) waves or cortical arousal during sleep underlie the biological mechanisms of dreaming. This study comprised 2 experiments. As eye movements (EMs) are currently considered the best noninvasive indicator of PGO burst activity in humans, the aim of the first experiment was to investigate the effect of low-intensity...
2009
Michael R Nadorff
Previous research has demonstrated a link between insomnia symptoms, nightmares, and suicidal ideation. The purpose of this study was to investigate whether insomnia symptoms and nightmares were related to suicidal ideation independent of each other. Further, the study aimed to determine whether suicidal ideation and nightmares were related with suicidal ideation independent of the symptoms of...
heiDOK (Heidelberg University)
2009
Michael Schredl
5 citations
Laboratory research indicated lower dream recall in children compared to young adults. However, the sample sizes of these studies are very small and the findings regarding home dream recall in larger studies are conflicting. The present study compared home dream recall frequency of 558 children (mean age about 10 yrs.) with a sample of young adults (mean age about 23 yrs) and found a marked...
University Library Heidelberg
2009
Amy Ruth Parke, Caroline L. Horton
1 citation
The interference hypothesis (Cohen, 1974; Cohen & Wolfe, 1973) was proposed to account for the difficulties in remembering dreams. Stimuli perceived on waking can either encourage activation of the waking brain or impair the transition from sleep to wake. The objective of the present study was to assess the validity of the interference hypothesis by discriminating between the natural decay of...
Libyan Journal of Medicine
2009
CO Mume
AIM: The aim of this study was to find out if the frequency of dream recall among neuropsychiatric patients on psychotropic drugs was significantly different from that of healthy individuals. METHODS: The study was done on 53 neuropsychiatric patients with different diagnoses who were on medication and 144 healthy individuals. The number of participants in each group who recalled their dreams...
heiDOK (Heidelberg University)
2009
Michael Schredl, Angelika Bocklage, Judith Engelhardt et al.
14 citations
Hartmann’s Boundary questionnaire was developed based on research regarding the personality of nightmare sufferers. Previous research showed that boundary thinness was not only related to openness to experience but also quite strongly to neuroticism. The aim of the present study was to develop a questionnaire measuring boundaries not related to neuroticism. The Boundary Personality...
heiDOK (Heidelberg University)
2009
Michael Schredl
38 citations
The present study investigated the nightmare frequency of patients with insomnia. Patients reported more often nightmares, especially when overall dream recall frequency was statistically controlled. Moreover, nightmare frequency was related to the severity of insomnia complaints. It would be interesting to study whether specific techniques for treating nightmares (imagery rehearsal therapy)...