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Waking Dream

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https://www.readbyqxmd.com/read/29215387/historical-trends-in-the-diagnosis-of-peduncular-hallucinosis
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/28575720/local-aspects-of-sleep-and-wakefulness
#15
REVIEW
Francesca Siclari, Giulio Tononi
Slow waves, the hallmark of NREM (Non Rapid Eye Movement) sleep, are not uniformly distributed across the cortical surface, but can occur locally and asynchronously across brain regions. Their regional distribution and amplitude is affected by brain maturation and by time spent awake, mediated in part by experience-dependent changes in synaptic strength. Recent studies have shown that local low-frequency oscillations (<10Hz) can also occur in REM sleep and during wakefulness, leading to region-specific cognitive errors...
June 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28562209/the-phenomenal-contents-and-neural-correlates-of-spontaneous-thoughts-across-wakefulness-nrem-sleep-and-rem-sleep
#16
Lampros Perogamvros, Benjamin Baird, Mitja Seibold, Brady Riedner, Melanie Boly, Giulio Tononi
Thoughts occur during wake as well as during dreaming sleep. Using experience sampling combined with high-density EEG, we investigated the phenomenal qualities and neural correlates of spontaneously occurring thoughts across wakefulness, non-rapid eye movement (NREM) sleep, and REM sleep. Across all states, thoughts were associated with activation of a region of the midcingulate cortex. Thoughts during wakefulness additionally involved a medial prefrontal region, which was associated with metacognitive thoughts during wake...
October 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28539902/arousal-in-nocturnal-consciousness-how-dream-and-sleep-experiences-may-inform-us-of-poor-sleep-quality-stress-and-psychopathology
#17
REVIEW
Nirit Soffer-Dudek
The term "sleep experiences," coined by Watson (2001), denotes an array of unusual nocturnal consciousness phenomena; for example, nightmares, vivid or recurrent dreams, hypnagogic hallucinations, dreams of falling or flying, confusional arousals, and lucid dreams. Excluding the latter, these experiences reflect a single factor of atypical oneiric cognitions ("general sleep experiences"). The current study is an opinionated mini-review on the associations of this factor-measured with the Iowa sleep experiences survey (ISES, Watson, 2001)-with psychopathological symptoms and stress...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28482107/phasic-rem-transiently-approaches-wakefulness-in-the-human-cortex-a-single-pulse-electrical-stimulation-study
#18
Kiyohide Usami, Riki Matsumoto, Katsuya Kobayashi, Takefumi Hitomi, Masao Matsuhashi, Akihiro Shimotake, Takayuki Kikuchi, Kazumichi Yoshida, Takeharu Kunieda, Nobuhiro Mikuni, Susumu Miyamoto, Ryosuke Takahashi, Akio Ikeda
Study Objectives: To investigate the changes in cortical neural responses induced by external inputs during phasic rapid eye movement (p-REM) sleep. Methods: Single-pulse electrical stimulation (SPES) was directly applied to the human cortex during REM sleep through subdural electrodes, in seven patients who underwent invasive presurgical evaluation for intractable partial epilepsy. SPES was applied to parts of the cortex through the subdural electrodes, and induced cortical responses were recorded from adjacent and remote cortical areas...
August 1, 2017: Sleep
https://www.readbyqxmd.com/read/28434101/predicting-dream-recall-eeg-activation-during-nrem-sleep-or-shared-mechanisms-with-wakefulness
#19
Serena Scarpelli, Aurora D'Atri, Anastasia Mangiaruga, Cristina Marzano, Maurizio Gorgoni, Cinzia Schiappa, Michele Ferrara, Luigi De Gennaro
The common knowledge of a uniqueness of REM sleep as a privileged scenario of dreaming still persists, although consolidated empirical evidence shows that the assumption that dreaming is just an epiphenomenon of REM sleep is no longer tenable. However, the brain mechanisms underlying dream generation and its encoding in memory during NREM sleep are still mostly unknown. In fact, only few studies have investigated on the mechanisms of dream phenomenology related to NREM sleep. For this reason, our study is specifically aimed to elucidate the electrophysiological (EEG) correlates of dream recall (DR) upon NREM sleep awakenings...
April 22, 2017: Brain Topography
https://www.readbyqxmd.com/read/28398195/mass-fainting-in-garment-factories-in-cambodia
#20
Maurice Eisenbruch
This paper reports an ethnographic study of mass fainting among garment factory workers in Cambodia. Research was undertaken in 2010-2015 in 48 factories in Phnom Penh and 8 provinces. Data were collected in Khmer using nonprobability sampling. In participant observation with monks, factory managers, health workers, and affected women, cultural understandings were explored. One or more episodes of mass fainting occurred at 34 factories, of which 9 were triggered by spirit possession. Informants viewed the causes in the domains of ill-health/toxins and supernatural activities...
April 2017: Transcultural Psychiatry
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