Objective. People experience lucid dreaming (LD) with different emotions and perceptions that can have psychophysiological consequences upon waking. To study the placebo without a deception effect, we tested how psychoactive drug intake during LDs affects perceptions in dreams and after waking.Method. Through two online experiments, we instructed volunteers to consume alcohol (N = 104) and...
Evolutionary theories suggest that dreams function as a world simulator of events that maximizes our ability to surmount social and threat-related challenges critical to survivorship and reproduction. Here, in contrast to the incorporation continuity hypothesis, we test the (1) social bias hypothesis, which states that dreams will overrepresent positive social interactions relative to waking...
The chapter begins with the text of a dream told to us as part of an online event for the International Society for the Study of Surrealism, a painting of the dream and a commentary on its composition. Main content: This chapter gives examples of the use of dreams in linear narrative films, sometimes as plot devices, and then compares this with films that are oneiric, that is, films that have...
Study objectives: Persistent nightmares are common among individuals exposed to trauma and are especially prevalent among veterans. While behavioral and pharmacological interventions are available, they have demonstrated limited efficacy. Innovations in wearable technology provide a potential avenue to match or exceed these existing treatments by directly targeting nightmare physiology....
The chapter begins with the text of a dream with three related but very separate scenes, and a painting of the dream and a commentary on its composition. Main content: This chapter describes how dreams occur in all stages of sleep, but are recalled more often from REM than from NREM sleep. Furthermore, REM dream reports (measured by the number of words) on average are longer than NREM dream...
Neurology. Clinical practiceFebruary 1, 2023Maria Jose Abenza-Abildúa, Vanesa Lores-Gutiérrez, Guadalupe Gutiérrez-Cueto et al.
Nightmare disorder consists of the appearance of unpleasant and vivid, repeated dreams, with a situation of discomfort and anguish on awakening. Its prevalence is 3%-4% in adults. They do not associate muscle mobilization during this phase. REM sleep behavior disorder (RSBD) is a rare parasomnia (0.5% of people older than 60 years of age), characterized by the presence of unpleasant dreams,...
The study explored the differences in nightmare, insomnia, depression, anxiety, and cognitive deficits among adolescents and the chain mediating effects of insomnia, depression, and anxiety on the relationship between nightmares and cognitive deficits in adolescents. An online survey was used to collect demographic data of 6014 adolescents and assess nightmare, insomnia, depression, anxiety,...
Epic dreaming is a type of disturbed dreaming described as experiencing daytime fatigue after dreaming all night. To investigate whether such phenomena is simply a vivid dream or more of a disturbing nightmare, we are going to look at the physiological and psychological aspect of epic dreaming patients along the behaviors of nightmares. By comparison, we see a similarity of inclination towards...
Medical alphabetJanuary 11, 2023R. K. Kostin, I. A. Rozhnov, E. A. Korabelnikova et al.1 citation
Aim. To assess the impact of nightmarish dreams on various aspects of medical students' lives. Materials and methods. A sociological survey was conducted among students of 1–6 courses of five medical universities using an online form which included the following questionnaires: the Pittsburgh Sleep Quality Index, the Hamburg Nightmare Questionnaire, the Insomnia Severity Scale, the Hospital...
The manuscript by Wong et al. in this issue [1] reports on nightmare-related findings at baseline and 1-year follow-up in a large scale, epidemiological mental health study of youth in Hong Kong from May 2019 to March 2022. Using a frequency of one or more nightmares per week based on the “having bad dreams” (translates to “nightmares” in Chinese) question from the Pittsburgh sleep quality...