keyword
MENU ▼
Read by QxMD icon Read
search

Waking Dream

keyword
https://www.readbyqxmd.com/read/28620339/the-stress-acceleration-hypothesis-of-nightmares
#1
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
#2
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...
May 30, 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
#3
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...
May 31, 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
#4
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
#5
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 (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...
May 8, 2017: Sleep
https://www.readbyqxmd.com/read/28434101/predicting-dream-recall-eeg-activation-during-nrem-sleep-or-shared-mechanisms-with-wakefulness
#6
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
#7
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
https://www.readbyqxmd.com/read/28394322/the-neural-correlates-of-dreaming
#8
Francesca Siclari, Benjamin Baird, Lampros Perogamvros, Giulio Bernardi, Joshua J LaRocque, Brady Riedner, Melanie Boly, Bradley R Postle, Giulio Tononi
Consciousness never fades during waking. However, when awakened from sleep, we sometimes recall dreams and sometimes recall no experiences. Traditionally, dreaming has been identified with rapid eye-movement (REM) sleep, characterized by wake-like, globally 'activated', high-frequency electroencephalographic activity. However, dreaming also occurs in non-REM (NREM) sleep, characterized by prominent low-frequency activity. This challenges our understanding of the neural correlates of conscious experiences in sleep...
June 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28390699/deciphering-neural-codes-of-memory-during-sleep
#9
REVIEW
Zhe Chen, Matthew A Wilson
Memories of experiences are stored in the cerebral cortex. Sleep is critical for the consolidation of hippocampal memory of wake experiences into the neocortex. Understanding representations of neural codes of hippocampal-neocortical networks during sleep would reveal important circuit mechanisms in memory consolidation and provide novel insights into memory and dreams. Although sleep-associated ensemble spike activity has been investigated, identifying the content of memory in sleep remains challenging. Here we revisit important experimental findings on sleep-associated memory (i...
May 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28386699/dreamlike-effects-of-lsd-on-waking-imagery-in-humans-depend-on-serotonin-2a-receptor-activation
#10
Rainer Kraehenmann, Dan Pokorny, Leonie Vollenweider, Katrin H Preller, Thomas Pokorny, Erich Seifritz, Franz X Vollenweider
RATIONALE: Accumulating evidence indicates that the mixed serotonin and dopamine receptor agonist lysergic acid diethylamide (LSD) induces an altered state of consciousness that resembles dreaming. OBJECTIVES: This study aimed to test the hypotheses that LSD produces dreamlike waking imagery and that this imagery depends on 5-HT2A receptor activation and is related to subjective drug effects. METHODS: Twenty-five healthy subjects performed an audiorecorded guided mental imagery task 7 h after drug administration during three drug conditions: placebo, LSD (100 mcg orally) and LSD together with the 5-HT2A receptor antagonist ketanserin (40 mg orally)...
April 7, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28377708/increased-evoked-potentials-to-arousing-auditory-stimuli-during-sleep-implication-for-the-understanding-of-dream-recall
#11
Raphael Vallat, Tarek Lajnef, Jean-Baptiste Eichenlaub, Christian Berthomier, Karim Jerbi, Dominique Morlet, Perrine M Ruby
High dream recallers (HR) show a larger brain reactivity to auditory stimuli during wakefulness and sleep as compared to low dream recallers (LR) and also more intra-sleep wakefulness (ISW), but no other modification of the sleep macrostructure. To further understand the possible causal link between brain responses, ISW and dream recall, we investigated the sleep microstructure of HR and LR, and tested whether the amplitude of auditory evoked potentials (AEPs) was predictive of arousing reactions during sleep...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28316568/towards-a-functional-understanding-of-pgo-waves
#12
REVIEW
Jarrod A Gott, David T J Liley, J Allan Hobson
Ponto-Geniculo-Occipital (PGO) waves are biphasic field potentials identified in a range of mammalian species that are ubiquitous with sleep, but can also be identified in waking perception and eye movement. Their role in REM sleep and visual perception more broadly may constitute a promising avenue for further research, however what was once an active field of study has recently fallen into stasis. With the reality that invasive recordings performed on animals cannot be replicated in humans; while animals themselves cannot convey experience to the extent required to elucidate how PGO waves factor into awareness and behavior, innovative solutions are required if significant research outcomes are to ever be realized...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28240187/the-endocannabinoid-system-modulating-levels-of-consciousness-emotions-and-likely-dream-contents
#13
Eric Murillo-Rodriguez, José Carlos Pastrana-Trejo, Mireille Salas-Crisóstomo, Miriel de-la-Cruz
Cannabinoids are derivatives that are either compounds occurring naturally in the plant, Cannabis sativa or synthetic analogs of these molecules. The first and most widely investigated of the cannabinoids is ∆9-tetrahydrocannabinol (Δ9-THC), which is the main psychotropic constituent of cannabis and undergoes significant binding to cannabinoid receptors. These cannabinoid receptors are seven-transmembrane receptors that received their name from the fact that they respond to cannabinoid compounds, including Δ9-THC...
February 23, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28236784/effects-of-donepezil-on-sleep-disturbances-in-patients-with-dementia-with-lewy-bodies-an-open-label-study-with-actigraphy
#14
Hiroaki Kazui, Hiroyoshi Adachi, Hideki Kanemoto, Kenji Yoshiyama, Tamiki Wada, Keiko Tokumasu Nomura, Toshihisa Tanaka, Manabu Ikeda
We investigated whether donepezil, a cholinesterase inhibitor, can be used to treat sleep disturbances in patients with dementia with Lewy bodies (DLB). Sleep disturbances were evaluated with the sleep disturbances item of the Neuropsychiatric inventory (NPI) and an actigraph in 16 DLB patients and 24 normal elderly control (NC) subjects. The presence/absence of nine kinds of sleep symptoms, such as dream enactment, were also evaluated in the DLB patients. The DLB patients were then given 5mg/day donepezil for 14 weeks and evaluated again...
May 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28212501/dream-content-of-canadian-males-from-adolescence-to-old-age-an-exploration-of-ontogenetic-patterns
#15
Allyson Dale, Alexandre Lafrenière, Joseph De Koninck
The present study was a first look at the ontogenetic pattern of dream content across the lifespan for men. The participants included 50 Canadian men in each of 5 age groups, from adolescence to old age including 12-17, 18-24, 25-39, 40-64, and 65-85. The last age group included 31 participants, totaling 231 males. One dream per participant was scored by two independent judges using content analysis. Trend analysis was used to determine the lifespan-developmental pattern of the dream content categories. Results demonstrated a predominance of aggressive dream imagery in the adolescent age group in line with social-developmental research...
March 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28197089/hierarchical-neural-representation-of-dreamed-objects-revealed-by-brain-decoding-with-deep-neural-network-features
#16
Tomoyasu Horikawa, Yukiyasu Kamitani
Dreaming is generally thought to be generated by spontaneous brain activity during sleep with patterns common to waking experience. This view is supported by a recent study demonstrating that dreamed objects can be predicted from brain activity during sleep using statistical decoders trained with stimulus-induced brain activity. However, it remains unclear whether and how visual image features associated with dreamed objects are represented in the brain. In this study, we used a deep neural network (DNN) model for object recognition as a proxy for hierarchical visual feature representation, and DNN features for dreamed objects were analyzed with brain decoding of fMRI data collected during dreaming...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/28141722/sudden-onset-of-refusal-to-eat-on-waking-after-a-nightmare-in-a-6-year-old-girl
#17
Maria Zaccagnino, Sheila Gahagan, Andrea Spencer, Michael Jellinek, Martin T Stein
Bridgette is a 6-year-old girl, who presented with sudden onset of refusal to eat or drink. The only precipitating event was a nightmare the previous night. She described a dream in which her mother and maternal aunt, dressed as witches, and father and maternal uncle, appearing as bats, wanted to kill her by making her eat and drink from a cauldron. Bridgette stated, "I can't eat anymore, I'm afraid of dying." Bridgette's eating pattern and behavior were described as previously normal. Motor, social, and language milestones were also normal...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28052330/it-s-only-a-dream-if-you-wake-up-young-adults-achievement-expectations-opportunities-and-meritocratic-beliefs
#18
Jacob Shane, Jutta Heckhausen
The present paper examines university graduates' beliefs about how meritocratic socioeconomic status (SES) attainment in U.S. society is for themselves (merit agency beliefs) and for most other people (merit societal beliefs), and how these distinct beliefs are differentially associated with labour market experiences and achievement-goal attitudes and expectations in the aftermath of the Great Recession. Data from a 10-month longitudinal study of 217 graduates from the 2013 class of a large public U.S. university were analysed using multilevel modelling...
February 2017: International Journal of Psychology: Journal International de Psychologie
https://www.readbyqxmd.com/read/28005464/improvement-of-darts-performance-following-lucid-dream-practice-depends-on-the-number-of-distractions-while-rehearsing-within-the-dream-a-sleep-laboratory-pilot-study
#19
Melanie Schädlich, Daniel Erlacher, Michael Schredl
In a lucid dream, the dreamer is aware of the dream state and can deliberately practice motor skills. Two field studies indicated that lucid dream practice can improve waking performance in simple motor tasks. The present pilot study investigated the effect of lucid dream practice in a controlled sleep laboratory setting, using a pre-post design with dart throwing in the evening and morning. The experimental group practiced darts in lucid dreams. Because some participants were distracted during lucid dream practice, the group was divided into lucid dreamers with few (n = 4) and many distractions (n = 5)...
December 22, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27998373/sleep-quality-in-an-adult-american-indian-community-sample
#20
Cindy L Ehlers, Derek N Wills, Philip Lau, David A Gilder
STUDY OBJECTIVES: Epidemiological studies have found that insufficient sleep (< 7 h/night) is more common among American Indians/Alaska Natives (AI/AN). In this study we sought to identify specific demographic, clinical, and cultural factors that may be associated with reduced sleep quality in an American Indian community sample. METHODS: Information on demography along with personal medical, psychiatric, and drinking history was obtained using the Semi-Structured Assessment for the Genetics of Alcoholism (SSAGA)...
March 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
keyword
keyword
64809
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"