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Waking Dream

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https://www.readbyqxmd.com/read/29432570/insomnia-perchance-a-dream-results-from-a-nrem-rem-sleep-awakening-study-in-good-sleepers-and-patients-with-insomnia
#1
Bernd Feige, Svetoslava Nanovska, Chiara Baglioni, Benedict Bier, Laura Cabrera, Sarah Diemers, Maximilian Quellmalz, Markus Siegel, Ireni Xeni, Andras Szentkiralyi, John-Peter Doerr, Dieter Riemann
Study Objectives: Insomnia disorder (ID) is a frequent sleep disorder coupled with increased risks for somatic and mental illness. While subjective complaints are severe, polysomnography (PSG) parameters show only modest differences between groups. REM sleep as the most aroused sleep state may be especially vulnerable to be perceived as wake. To directly assess possible differences, we determined auditory waking thresholds and sleep perception in ID patients and healthy control subjects (GSC) in N2 and REM sleep...
February 8, 2018: Sleep
https://www.readbyqxmd.com/read/29422603/rem-sleep-respiratory-behaviours-mental-content-in-narcoleptic-lucid-dreamers
#2
Delphine Oudiette, Pauline Dodet, Nahema Ledard, Emilie Artru, Inès Rachidi, Thomas Similowski, Isabelle Arnulf
Breathing is irregular during rapid eye-movement (REM) sleep, whereas it is stable during non-REM sleep. Why this is so remains a mystery. We propose that irregular breathing has a cortical origin and reflects the mental content of dreams, which often accompany REM sleep. We tested 21 patients with narcolepsy who had the exceptional ability to lucid dream in REM sleep, a condition in which one is conscious of dreaming during the dream and can signal lucidity with an ocular code. Sleep and respiration were monitored during multiple naps...
February 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29403350/the-experience-elicited-by-hallucinogens-presents-the-highest-similarity-to-dreaming-within-a-large-database-of-psychoactive-substance-reports
#3
Camila Sanz, Enzo Tagliazucchi
Ever since the modern rediscovery of psychedelic substances by Western society, several authors have independently proposed that their effects bear a high resemblance to the dreams and dreamlike experiences occurring naturally during the sleep-wake cycle. Recent studies in humans have provided neurophysiological evidence supporting this hypothesis. However, a rigorous comparative analysis of the phenomenology ("what it feels like" to experience these states) is currently lacking. We investigated the semantic similarity between a large number of subjective reports of psychoactive substances and reports of high/low lucidity dreams, and found that the highest-ranking substance in terms of the similarity to high lucidity dreams was the serotonergic psychedelic lysergic acid diethylamide (LSD), whereas the highest-ranking in terms of the similarity to dreams of low lucidity were plants of the Datura genus, rich in deliriant tropane alkaloids...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29395986/sleep-and-plasticity-waking-from-a-fevered-dream
#4
EDITORIAL
Marcos G Frank, Julie Seibt
No abstract text is available yet for this article.
December 26, 2017: Sleep Medicine Reviews
https://www.readbyqxmd.com/read/29391838/spotlight-on-dream-recall-the-ages-of-dreams
#5
REVIEW
Anastasia Mangiaruga, Serena Scarpelli, Chiara Bartolacci, Luigi De Gennaro
Brain and sleep maturation covary across different stages of life. At the same time, dream generation and dream recall are intrinsically dependent on the development of neural systems. The aim of this paper is to review the existing studies about dreaming in infancy, adulthood, and the elderly stage of life, assessing whether dream mentation may reflect changes of the underlying cerebral activity and cognitive processes. It should be mentioned that some evidence from childhood investigations, albeit still weak and contrasting, revealed a certain correlation between cognitive skills and specific features of dream reports...
2018: Nature and Science of Sleep
https://www.readbyqxmd.com/read/29333582/outpatient-erbium-yag-2940%C3%A2-nm-laser-treatment-for-snoring-a-prospective-study-on-40-patients
#6
Isabelle Fini Storchi, Steven Parker, Francesca Bovis, Stefano Benedicenti, Andrea Amaroli
Snoring is a sleep phenomenon due to the partial upper airway obstruction during sleep which causes vibration of the tissues of the rhino-oro-hypopharynx and less frequently the larynx. This study evaluated the use and effectiveness of the erbium:YAG 2940-nm laser as an adjunctive in providing treatment for patients suffering from chronic snoring-related sleep disorders. A prospective study of 40 consecutive patients with snoring and sleep disorders was performed, assessing data before and after three Er:YAG laser treatment sessions...
January 15, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29215387/historical-trends-in-the-diagnosis-of-peduncular-hallucinosis
#7
Kristin M Galetta, Sashank Prasad
BACKGROUND: Peduncular hallucinosis (PH) describes the clinical syndrome of vivid, dream-like visual hallucinations that intrude on normal wakefulness. Additional clinical deficits, especially ophthalmoparesis, have historically been an important part of the diagnosis and localization of this syndrome. We examined how modern neuroimaging has impacted the diagnosis of PH. METHODS: We reviewed all available cases of PH, including 3 of ours and all previously reported in the literature...
December 5, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29193696/a-wake-up-call-to-quiescent-cancer-cells-potential-use-of-dyrk1b-inhibitors-in-cancer-therapy
#8
Walter Becker
Non-dividing cancer cells are relatively resistant to chemotherapeutic drugs and environmental stress factors. Promoting cell cycle re-entry of quiescent cancer cells is a potential strategy to enhance the cytotoxicity of agents that target cycling cells. It is therefore important to elucidate the mechanisms by which these cells are maintained in the quiescent state. The protein kinase DYRK1B is overexpressed in a subset of cancers and maintains cellular quiescence by counteracting G0 /G1 - S phase transition...
November 28, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29162522/loss-of-consciousness-is-related-to-hyper-correlated-gamma-band-activity-in-anesthetized-macaques-and-sleeping-humans
#9
Michał Bola, Adam B Barrett, Andrea Pigorini, Lino Nobili, Anil K Seth, Artur Marchewka
Loss of consciousness can result from a wide range of causes, including natural sleep and pharmacologically induced anesthesia. Important insights might thus come from identifying neuronal mechanisms of loss and re-emergence of consciousness independent of a specific manipulation. Therefore, to seek neuronal signatures of loss of consciousness common to sleep and anesthesia we analyzed spontaneous electrophysiological activity recorded in two experiments. First, electrocorticography (ECoG) acquired from 4 macaque monkeys anesthetized with different anesthetic agents (ketamine, medetomidine, propofol) and, second, stereo-electroencephalography (sEEG) from 10 epilepsy patients in different wake-sleep stages (wakefulness, NREM, REM)...
November 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/29145189/rem-sleep-behavior-disorder
#10
Claudio L Bassetti, Panagiotis Bargiotas
Rapid eye movement sleep behavior disorder (RBD) is a brain disorder, characterized by the dream enactment during rapid eye movement (REM) sleep due to a lack of physiologic muscle atonia and increased muscle twitching. Schenk was the first to describe this disorder in 1986; however, few authors reported in the 1970-1980s loss of physiological muscle atonia combined with dream enactment in the course of brainstem disorders and as a consequence of alcoholism and antidepressant treatment. RBD affects less than 1% of the adult population, but can be found in up to 25-50% of neurodegenerative disorders including Parkinson's disease, multisystem atrophy, and dementia with Lewy body...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29128282/daydreams-incorporate-recent-waking-life-concerns-but-do-not-show-delayed-dream-lag-incorporations
#11
Elaine van Rijn, Alexander M Reid, Christopher L Edwards, Josie E Malinowski, Perrine M Ruby, Jean-Baptiste Eichenlaub, Mark T Blagrove
This study investigates the time course of incorporation of waking life experiences into daydreams. Thirty-one participants kept a diary for 10 days, reporting major daily activities (MDAs), personally significant events (PSEs) and major concerns (MCs). They were then cued for daydream, Rapid Eye Movement (REM) and N2 dream reports in the sleep laboratory. There was a higher incorporation into daydreams of MCs from the previous two days (day-residue effect), but no day-residue effect for MDAs or PSEs, supporting a function for daydreams of processing current concerns...
November 8, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/29125497/quantum-brain-theory-and-the-appearing-of%C3%A2-world
#12
Gordon Globus
The appearing of world is approached via the dream world which has generally been thought to be merely derivative: a "composition" of memory traces from waking life, which are merged and fused into a dream world that in some instances can be indiscernable from the world of waking life. Two dreams are presented which challenge the composition theory of dream formation. An alternative unified theory of world appearance in both waking and dreaming is proposed, which makes use of developments in quantum brain dynamics...
November 8, 2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/29104550/editorial-do-both-psychopathology-and-creativity-result-from-a-labile-wake-sleep-dream-cycle
#13
EDITORIAL
Sue Llewellyn, Martin Desseilles
No abstract text is available yet for this article.
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29020066/characteristics-of-the-memory-sources-of-dreams-a-new-version-of-the-content-matching-paradigm-to-take-mundane-and-remote-memories-into-account
#14
Raphael Vallat, Benoit Chatard, Mark Blagrove, Perrine Ruby
Several studies have demonstrated that dream content is related to the waking life of the dreamer. However, the characteristics of the memory sources incorporated into dreams are still unclear. We designed a new protocol to investigate remote memories and memories of trivial experiences, both relatively unexplored in dream content until now. Upon awakening, for 7 days, participants identified the waking life elements (WLEs) related to their dream content and characterized them and their dream content on several scales to assess notably emotional valence...
2017: PloS One
https://www.readbyqxmd.com/read/28936183/consciousness-across-sleep-and-wake-discontinuity-and-continuity-of-memory-experiences-as-a-reflection-of-consolidation-processes
#15
Caroline L Horton
The continuity hypothesis (1) posits that there is continuity, of some form, between waking and dreaming mentation. A recent body of work has provided convincing evidence for different aspects of continuity, for instance that some salient experiences from waking life seem to feature in dreams over others, with a particular role for emotional arousal as accompanying these experiences, both during waking and while asleep. However, discontinuities have been somewhat dismissed as being either a product of activation-synthesis, an error within the consciousness binding process during sleep, a methodological anomaly, or simply as yet unexplained...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28729438/electrophysiological-evidence-that-the-retrosplenial-cortex-displays-a-strong-and-specific-activation-phased-with-hippocampal-theta-during-paradoxical-rem-sleep
#16
Bruna Del Vechio Koike, Kelly Soares Farias, Francesca Billwiller, Daniel Almeida-Filho, Paul-Antoine Libourel, Alix Tiran-Cappello, Régis Parmentier, Wilfredo Blanco, Sidarta Ribeiro, Pierre-Herve Luppi, Claudio Marcos Queiroz
It is widely accepted that cortical neurons are similarly more activated during waking and paradoxical sleep (PS; aka REM) than during slow-wave sleep (SWS). However, we recently reported using Fos labeling that only a few limbic cortical structures including the retrosplenial cortex (RSC) and anterior cingulate cortex (ACA) contain a large number of neurons activated during PS hypersomnia. Our aim in the present study was to record local field potentials and unit activity from these two structures across all vigilance states in freely moving male rats to determine whether the RSC and the ACA are electrophysiologically specifically active during basal PS episodes...
August 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28715599/dreamlike-events-are-correlated-with-the-length-of-sleep-mentation-reports
#17
N Rosenlicht, C Primich, J R McQuaid, T Maloney, I Feinberg
We investigated the relationship between length and dreamlike quality in sleep mentation reports. Reports were obtained by waking subjects at sleep onset (SO) and at 5 and 10 minutes into the second (REMP2) and fourth REM periods (REMP4). Reports were recorded, transcribed, and scored blindly for total word count (TWC) and dreamlike quality as measured by a composite dream scale score (CDS). Dreamlike quality was strongly correlated with TWC; both CDS and TWC scores increased across successively later awakenings...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28673212/awareness-during-general-anaesthesia-in-the-first-4-000-incidents-reported-to-webairs
#18
K Leslie, M D Culwick, H Reynolds, J A Hannam, A F Merry
The aim of this study was to analyse the incidents related to awareness during general anaesthesia in the first 4,000 cases reported to webAIRS-an anaesthetic incident reporting system established in Australia and New Zealand in 2009. Included incidents were those in which the reporter selected "neurological" as the main category and "awareness/dreaming/nightmares" as a subcategory, those where the narrative report included the word "awareness" and those identified by the authors as possibly relevant to awareness...
July 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28640937/dreams-and-creative-problem-solving
#19
REVIEW
Deirdre Barrett
Dreams have produced art, music, novels, films, mathematical proofs, designs for architecture, telescopes, and computers. Dreaming is essentially our brain thinking in another neurophysiologic state-and therefore it is likely to solve some problems on which our waking minds have become stuck. This neurophysiologic state is characterized by high activity in brain areas associated with imagery, so problems requiring vivid visualization are also more likely to get help from dreaming. This article reviews great historical dreams and modern laboratory research to suggest how dreams can aid creativity and problem-solving...
October 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28620339/the-stress-acceleration-hypothesis-of-nightmares
#20
Tore Nielsen
Adverse childhood experiences can deleteriously affect future physical and mental health, increasing risk for many illnesses, including psychiatric problems, sleep disorders, and, according to the present hypothesis, idiopathic nightmares. Much like post-traumatic nightmares, which are triggered by trauma and lead to recurrent emotional dreaming about the trauma, idiopathic nightmares are hypothesized to originate in early adverse experiences that lead in later life to the expression of early memories and emotions in dream content...
2017: Frontiers in Neurology
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