Nightmare experiences and perceived ethnic discrimination amongst female university students in the United Arab Emirates: a cross-sectional study
In this study, 179 female university students from the United Arab Emirates were assessed to answer that question. Results showed that while anxiety and depression were related to nightmare experiences, perceived ethnic discrimination was a stronger predictor of nightmare experiences. We posit two explanations for this finding: one based on psychoanalytical insights, and the other based on the Disposition-Stress model with neurobiological correlates. No significant differences were found across ethnicity when it comes to nightmare experiences or perceived ethnic discrimination. This is an encouraging sign of optimal societ...
Source: Journal of Sleep Research - January 17, 2024 Category: Sleep Medicine Authors: Maria Campo Redondo Gabriel Andrade Source Type: research
The effects of partial sleep restriction and subsequent caffeine ingestion on neurovascular coupling
In conclusion, NVC was unaltered after 50% sleep loss, and caffeine did not modify the magnitude of the response in the rested or sleep-deprived state. Future research should explore how habitual poor sleep affects cerebrovascular function.PMID:38228309 | DOI:10.1111/jsr.14145 (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - January 16, 2024 Category: Sleep Medicine Authors: Alice B Lester Gavin Buckingham Bert Bond Source Type: research
Subjective sleep onset latency is influenced by sleep structure and body heat loss in human subjects
J Sleep Res. 2024 Jan 14:e14122. doi: 10.1111/jsr.14122. Online ahead of print.ABSTRACTThe present study examined the relationship between subjective sleep onset latency (SOL), sleep structure, changes in skin and body temperature, and subjective evaluation of sleep in healthy young adults to elucidate the pathophysiological mechanisms of insomnia. A total of 28 participants (age 21.54 [0.50] years) with no sleep problems participated in a 1-h polysomnographic recording that obtained objective sleep parameters during the daytime while skin and body temperatures were recorded. The distal-proximal skin temperature gradient (...
Source: Journal of Sleep Research - January 15, 2024 Category: Sleep Medicine Authors: Ryusei Iijima Akari Kadooka Kairi Sugawara Momo Fushimi Mizuki Hosoe Sayaka Aritake-Okada Source Type: research
Concentration-effect relationships of plasma caffeine on EEG delta power and cardiac autonomic activity during human sleep
J Sleep Res. 2024 Jan 14:e14140. doi: 10.1111/jsr.14140. Online ahead of print.ABSTRACTAcute caffeine intake affects brain and cardiovascular physiology, yet the concentration-effect relationships on the electroencephalogram and cardiac autonomic activity during sleep are poorly understood. To tackle this question, we simultaneously quantified the plasma caffeine concentration with ultra-high-performance liquid chromatography, as well as the electroencephalogram, heart rate and high-frequency (0.15-0.4 Hz) spectral power in heart rate variability, representing parasympathetic activity, with standard polysomnography during ...
Source: Journal of Sleep Research - January 15, 2024 Category: Sleep Medicine Authors: Diego M Baur Dario A Dornbierer Hans-Peter Landolt Source Type: research
Empowerment-based cognitive behavioural therapy for insomnia in persons with mild cognitive impairment: A sequential explanatory mixed-method pilot study
In conclusion, empowerment-based CBT-I was well received by persons with MCI and had potential positive effects on improving sleep and cognition in this cohort.PMID:38204434 | DOI:10.1111/jsr.14131 (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - January 11, 2024 Category: Sleep Medicine Authors: Polly W C Li Doris S F Yu Source Type: research
Correction to "Ready-made versus custom-made mandibular advancement appliances in obstructive sleep apnea: A systematic review and meta-analysis"
J Sleep Res. 2024 Jan 11:e14130. doi: 10.1111/jsr.14130. Online ahead of print.NO ABSTRACTPMID:38212118 | DOI:10.1111/jsr.14130 (Source: Journal of Sleep Research)
Source: Journal of Sleep Research - January 11, 2024 Category: Sleep Medicine Source Type: research
Objectively measured prolonged sleep is associated with plasma cytokines in older adults with mild cognitive impairment
This study aimed to determine whether objective sleep time is associated with the concentrations of various plasma cytokines in older adults with mild cognitive impairment (MCI). In total, 118 adults with MCI (66 women; mean age: 75.7 years) participated in this prospective cohort study. All participants were required to wear a wristband sensor for 7.8 days, on average, every 3 months for 1 year and undergo measurement of 27 plasma cytokines using multiplex immunoassays. After adjusting for potential confounders, the associations of total sleep time with cytokine concentrations were assessed by multiple linear regression a...
Source: Journal of Sleep Research - January 11, 2024 Category: Sleep Medicine Authors: Akari Tokunaga Noriyuki Kimura Teruaki Masuda Takuya Hanaoka Etsuro Matsubara Source Type: research
Cognitive performance of air personnel following sleep deprivation
J Sleep Res. 2024 Jan 9:e14139. doi: 10.1111/jsr.14139. Online ahead of print.ABSTRACTAir forces have developed several methods for reducing fatigue-related accidents. In the Israeli Air Force, the "Dead Tired" workshop was developed with the purpose of presenting aircrew with their objective performance under sleep deprivation conditions. The aim of this study was to examine the cognitive abilities of both aircrew and unmanned aerial vehicle operators, both objectively and subjectively. All Israeli aircrew and unmanned aerial vehicle operators participated in a "Dead Tired" workshop. During the workshop, the participants ...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Daniela Algranati Idan Nakdimon Anna Levkovsky Barak Gordon Oded Ben-Ari Source Type: research
Factors influencing sleep-dependent consolidation: Sleep strengths memory based on encoding depth but not repetition
J Sleep Res. 2024 Jan 9:e14091. doi: 10.1111/jsr.14091. Online ahead of print.ABSTRACTSleep consolidates declarative memory after deep but not shallow incidental encoding, but little is known about this form of consolidation. One unexplored area is the extent to which the amount of exposure to incidentally encoded information affects consolidation processes. In two experiments, we manipulated the number of times information was presented. In Experiment 1, participants encoded words either one or three times in a deep or shallow incidental encoding task and completed a surprise recognition test after sleep or wake. Sleep co...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Elle M D Wernette Kimberly M Fenn Source Type: research
Crosstalk between the subiculum and sleep-wake regulation: A review
J Sleep Res. 2024 Jan 9:e14134. doi: 10.1111/jsr.14134. Online ahead of print.ABSTRACTThe circuitry underlying the initiation, maintenance, and coordination of wakefulness, rapid eye movement sleep, and non-rapid eye movement sleep is not thoroughly understood. Sleep is thought to arise due to decreased activity in the ascending reticular arousal system, which originates in the brainstem and awakens the thalamus and cortex during wakefulness. Despite the conventional association of sleep-wake states with hippocampal rhythms, the mutual influence of the hippocampal formation in regulating vigilance states has been largely n...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Sadegh Rahimi Leesa Joyce Thomas Fenzl Meinrad Drexel Source Type: research
Sleep disturbance correlated with severity of neuropathic pain in sciatic nerve crush injury model
J Sleep Res. 2024 Jan 10:e14137. doi: 10.1111/jsr.14137. Online ahead of print.ABSTRACTThe association between sleep and pain has been investigated widely. However, inconsistent results from animal studies compared with human data show the need for a validated animal model in the sleep-pain association field. Our study aims to validate common neuropathic pain models as a tool for evaluating the sleep-pain association. Electrodes electroencephalogram (EEG) and electromyogram (EMG) were surgically implanted to measure sleep. The von Frey test was used to measure pain sensitivity. Following the baseline data acquisition, two ...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Anh Ho Sung-Jun Lee Victor J Drew Jieun Jung Jiseung Kang Chanyoung Cheong Tae Kim Source Type: research
Cognitive performance of air personnel following sleep deprivation
J Sleep Res. 2024 Jan 9:e14139. doi: 10.1111/jsr.14139. Online ahead of print.ABSTRACTAir forces have developed several methods for reducing fatigue-related accidents. In the Israeli Air Force, the "Dead Tired" workshop was developed with the purpose of presenting aircrew with their objective performance under sleep deprivation conditions. The aim of this study was to examine the cognitive abilities of both aircrew and unmanned aerial vehicle operators, both objectively and subjectively. All Israeli aircrew and unmanned aerial vehicle operators participated in a "Dead Tired" workshop. During the workshop, the participants ...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Daniela Algranati Idan Nakdimon Anna Levkovsky Barak Gordon Oded Ben-Ari Source Type: research
Factors influencing sleep-dependent consolidation: Sleep strengths memory based on encoding depth but not repetition
J Sleep Res. 2024 Jan 9:e14091. doi: 10.1111/jsr.14091. Online ahead of print.ABSTRACTSleep consolidates declarative memory after deep but not shallow incidental encoding, but little is known about this form of consolidation. One unexplored area is the extent to which the amount of exposure to incidentally encoded information affects consolidation processes. In two experiments, we manipulated the number of times information was presented. In Experiment 1, participants encoded words either one or three times in a deep or shallow incidental encoding task and completed a surprise recognition test after sleep or wake. Sleep co...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Elle M D Wernette Kimberly M Fenn Source Type: research
Crosstalk between the subiculum and sleep-wake regulation: A review
J Sleep Res. 2024 Jan 9:e14134. doi: 10.1111/jsr.14134. Online ahead of print.ABSTRACTThe circuitry underlying the initiation, maintenance, and coordination of wakefulness, rapid eye movement sleep, and non-rapid eye movement sleep is not thoroughly understood. Sleep is thought to arise due to decreased activity in the ascending reticular arousal system, which originates in the brainstem and awakens the thalamus and cortex during wakefulness. Despite the conventional association of sleep-wake states with hippocampal rhythms, the mutual influence of the hippocampal formation in regulating vigilance states has been largely n...
Source: Journal of Sleep Research - January 10, 2024 Category: Sleep Medicine Authors: Sadegh Rahimi Leesa Joyce Thomas Fenzl Meinrad Drexel Source Type: research
Alpha-lactalbumin and sleep: A systematic review
J Sleep Res. 2024 Jan 7:e14141. doi: 10.1111/jsr.14141. Online ahead of print.ABSTRACTInsufficient sleep is a growing global problem, with poor sleep associated with many negative health and performance outcomes. Previous reviews investigating the effect of diet on sleep have highlighted the amino acid tryptophan as a promising sleep-promoting nutrient, with the richest food source of tryptophan, ⍺-lactalbumin, requiring further investigation. Therefore, this systematic review aimed to review the existing evidence of association between ⍺-lactalbumin and sleep. Four electronic databases (CINAHL Complete, Embase, MEDLIN...
Source: Journal of Sleep Research - January 7, 2024 Category: Sleep Medicine Authors: Jackson Barnard Spencer Roberts Monica Kelly Michele Lastella Brad Aisbett Dominique Condo Source Type: research
