ISSN 1550-9109
151 papers in the library · 2,700 citations · publishing 1978-2026
Sleep August 1, 2026
The paradox of right dorsolateral prefrontal cortex targeting: why did low-frequency repetitive transcranial magnetic stimulation modulate default mode network but not frontoparietal network BOLD-CSF coupling in chronic insomnia?
Sleep August 1, 2026
Nightmares and suicide risk: broadening the therapeutic frame beyond Imagery Rehearsal Therapy.
Sleep July 22, 2026 Enyu Lin, Simone Grassini, Henry Railo et al.
Sleep plays an important role in affective processing and affect regulation during wakefulness. Dreaming-the subjective experiences occurring during sleep-has been suggested to reflect, or even contribute to, waking affect regulation. However, the role of dream affect in waking affect regulation has rarely been studied directly. Here, we investigated how dream affect relates to waking affect...
Sleep May 29, 2026 Julia Maruani, Pierre A Geoffroy
Julia Maruani, Pierre A Geoffroy; Nightmare-Focused Interventions and Suicide Prevention: Clarifying the Role of Imagery Rehearsal Therapy and Prazosin, Sl
Sleep May 1, 2026 Denise C. Vidot, Bria-Necole Diggs, Amrit Baral et al.
Abstract Introduction Psychedelic use and interest in its therapeutic potential are rapidly increasing; yet its relationship with insomnia remains poorly understood. This study aims to estimate differences in insomnia severity by type of psychedelic consumed among a cohort of 18-to-35-year olds. Methods Data are from the Herbal Heart Study - Sleep Ancillary (N=100) cannabis consumers....
Sleep May 1, 2026 Westley Youngren, Victoria West Staples, Emma Angle et al.
Abstract Introduction Targeted Dream Incubation (TDI) is the process of giving an individual auditory cues (i.e., “think of a tree”) while they are falling asleep, with the goal of shaping dream content (into something such as a tree). Recent research has demonstrated TDI may be able to increase dream self-efficacy (DSE) and influence other mental health outcomes. Thus, our study explored how...
Sleep May 1, 2026 Hollyann Loui, Melisa Chang
Abstract Introduction Exploding head syndrome (EHS) is characterized by the perception of a sudden loud noise or explosion in the head that occurs as the patient is falling asleep or waking up, typically associated with fear. The sensation is painless, lasts a few seconds, and may be associated with a flash of light or myoclonic jerk. Report of case(s) A 63-year-old-man with diabetes and...
Sleep May 1, 2026 Holland Doise, A. Gonzalez Quesada, Garrett Baber et al.
Abstract Introduction Nightmares are associated with more severe posttraumatic stress disorder (PTSD). The advent of large language models (LLM) offers unique advantages to efficiently code affective dream content over human methods, which can be resource intensive and prone to error. This study tested whether dream affect (DA), measured via self-report, human-rated narrative coding, and LLM...
Sleep April 8, 2026 Julia Maruani, Pierre A Geoffroy 2 citations
Nightmares are repeated and lengthy dreams, extremely dysphoric, with clear memory, typically involving life-threatening threats to safety or physical integrity. These nightmares lead to significant distress upon awakening and may substantially impact daytime functioning. Both the experience of these dreams and the sleep disruption produced by the ensuing awakening cause significant impairment...
Sleep September 18, 2025 Jessica Palmieri, Deniz Kumral, Sammy-Jo Wymer et al.
Reactivation of waking neuronal activity during sleep holds a functional role in memory consolidation. Reprocessing of daytime memory in dreams might aid later memory performance in a similar way. Numerous findings hint at a link between dreaming and sleep-dependent memory processing; however, studies investigating day-residue incorporation in dreaming led to mixed results so far. In this...
Sleep May 26, 2025 Alejandra Mondino, Amir Jadidian, Brandon A Toth et al. 4 citations
The preoptic area of the hypothalamus is key for the control of sleep onset and sleep homeostasis. Although traditionally considered exclusively somnogenic, recent studies identified a group of preoptic glutamatergic neurons that promote wakefulness. Specifically, our previous investigations demonstrated that chemogenetic stimulation of glutamatergic neurons within the medial-lateral preoptic...
Sleep May 19, 2025 Emily Feldman, Rebecca Essien, Danya Husein et al.
Abstract Introduction Dream recall frequency (DRF), or how often individuals remember and report dreams, is influenced by factors such as family dynamics, mental health, and cultural norms. Women tend to report higher DRF and greater distress from nightmares, while individuals with psychiatric conditions often exhibit reduced DRF. This study examined the relative contributions of childhood...
Sleep May 19, 2025 Otis Eads, John Richmond Sy, Ruth Brombach et al.
Abstract Introduction Lucid Dreaming, defined by a preserved sense of insight, thought, and control while dreaming, has been previously linked to internal locus of control, resilience and problem-solving. Lucid Dreaming may be important for individuals to exert a sense of agency in both dreams and daily life. This study therefore investigates how locus of control relates to lucid dreaming...
Sleep May 19, 2025 Garrett Baber, Nancy Hamilton, Matthew Gratton
Abstract Introduction Dream reports provide unique insights into emotional processing during sleep. While self-reports are the gold standard for assessing dream affect, natural language processing (NLP) tools like ChatGPT may offer scalable alternatives. This study evaluated ChatGPT’s ability to estimate positive and negative affect from dream reports, comparing its performance against...
Sleep May 1, 2025 Robert Stickgold, Alon Shamir, Noa Brande-Eilat et al. 1 citation
Abstract Introduction Recent studies and anecdotal reports suggest that sleep-onset hypnagogic dreams can contain creative insights, in some cases leading to Nobel prizes. While such reports are rare, targeted dream incubation (TDI) can induce dreams on pre-selected topics, such as “a tree,” in 70% of dream reports collected shortly after sleep onset, as well as a subsequent increase in...
Sleep May 1, 2025 Westley Youngren, Emma Angle, Victoria West Staples et al.
Abstract Introduction Targeted Dream Incubation (TDI) is the process of utilizing verbal cues (such as, “while you try to fall asleep, try and think of a tree”) during pre-sleep stages in order to directly shape dream content. Preliminary results have demonstrated that TDI may be able to increase dreaming self-efficacy (DSE). Our study aimed to replicate and extend initial findings by examining...
Sleep May 1, 2025 Denise C. Vidot, Amrit Baral, Bria-Necole Diggs et al.
Abstract Introduction Research on psychedelic use and sleep satisfaction remains unclear despite increased use. This study examines the psychedelic use and sleep satisfaction among 18-to-35-year-olds enrolled in the Herbal Heart Study. Methods The exposure variables were lifetime self-reported use of any psychedelic (LSD, psilocybin, peyote, mescaline, ayahuasca/DMT) and psilocybin-alone. Sleep...
Sleep May 1, 2025 Michael J. Thorpy, Jennifer M Mundt, Sally Ibrahim et al.
Abstract Introduction Limited information is available to quantify hypnagogic/hypnopompic hallucination (HH) events people with narcolepsy (PWN) may experience. This post hoc analysis from the phase 3 REST-ON trial evaluated individual HH types. Methods REST-ON (NCT02720744) participants (age ≥16 years) with narcolepsy were randomized 1:1 to once-nightly sodium oxybate (ON-SXB) (week 1, 4.5 g;...
Sleep May 1, 2025 April Roper, Chase A. Stratton, Janeese A. Brownlow
Abstract Introduction Approximately 12% of U.S. adults report having used any type of psychedelic at some point in their lives, making it one of the most widely used recreational drugs. There exists a need for a better understanding of the consequences of use on objective sleep habits. Research on psychedelics effects on sleep indicate increased sleep duration, increased REM latency, and...
Sleep May 1, 2025 Serge Onyper, Joseph Mocerine, G. Cote et al.
Breathwork techniques such as box breathing and paced breathing have been gaining popularity in clinical mental health settings as means to manage stress and enhance well-being. This study explored the impact of a novel controlled breathwork method, cyclic breathing, on sleep in college students. Cyclic breathing involves a double inhale (the first inhale being longer than the second) followed...
Sleep May 1, 2025 Mika Hirata, Heba A Afaneh, Ishana Kapoor et al.
Perinatal women are highly vulnerable to insomnia and depression. High cognitive arousal (e.g., worry, rumination) at night is a key risk factor for developing insomnia and depression during this period. However, mindfulness skills have been proposed to reduce risk for negative health outcomes by protecting individuals against the harmful effects of cognitive arousal. This prospective study...
Sleep May 1, 2025 Michael Price, Odalis G Garcia, Jeremy Hamm et al.
Many studies involving the relationship between personality and nightmare frequency (NF), common in cross-sectional data, have only looked at neuroticism in isolation, assumed a linear relationship, or did not include nightmare disorder index (NDI) to determine if personality traits might predict NDI over NF. While neuroticism is the personality trait most commonly associated with nightmares,...
Sleep May 1, 2025 Odalis G Garcia, Michael Price, Katherine A. Duggan
There is currently no consensus on the definition of nightmares. Most participants define nightmares as “bad dreams” with intense, distressing emotions. Per the DSM-5, nightmares are distressing dreams, but to be diagnosed with nightmare disorder, the dreams must awaken the dreamer. Surprisingly, research has not evaluated the characteristics dreamers use to categorize their nightmares....
Sleep May 1, 2025 James R. Kang, Zahari N. Tchopev, H. Scheuller et al.
Nightmare disorder (NDO) is a significant but often under-recognized condition, especially within the military population. We previously reported that 31.2% of patients referred to our military sleep disorders center have NDO, yet only 3.9% were referred for NDO. Despite the general population’s NDO prevalence (2-8%), our center had no referrals for NDO from June 1 to August 31, 2024. This...
Sleep May 1, 2025 Amanda Radtke, Aaron Burch, James R. Kang et al.
Nightmare Disorder (NDO) is estimated to impact at least 4% of the US adult population yet is reported to be much higher among service members (SMs). Our Center has previously reported 31.2% of referred SMs had probable NDO based on screening measures, yet only 3.9% reported nightmares as a reason for evaluation. No quality measures report on the rate of confirmed diagnosis, and more...