keyword
MENU ▼
Read by QxMD icon Read
search

sleep cognitive performance

keyword
https://www.readbyqxmd.com/read/29329819/the-effect-of-continuous-positive-airway-pressure-on-spectral-encephalogram-characteristics-in-stroke-patients-with-obstructive-sleep-apnea
#1
Hisham Alshaer, Aditya Pandya, Igor Zivanovic, Carolina Gonzaga Carvalho, Clodagh Ryan
OBJECTIVES: To evaluate if treatment with continuous positive airway pressure (CPAP) compared to usual care in stroke patients with obstructive sleep apnea (OSA) over one month reduces delta and alpha oscillations on quantitative electroencephalography (EEG) in association with improvements in cognitive or functional outcomes. METHODS: Spectral EEG analysis was performed in patients with subacute stroke and OSA randomized to usual care or CPAP treatment from a previous study...
January 9, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29318004/poly-de-prescribing-to-treat-polypharmacy-efficacy-and-safety
#2
Doron Garfinkel
Background: The aim of this study was to evaluate efficacy and safety of poly-de-prescribing (PDP) based on the Garfinkel method in older people with polypharmacy. Methods: A longitudinal, prospective, nonrandomized study in Israel was carried out between 2009 and 2016. Comprehensive geriatric assessments were performed at home in people age ⩾66 years consuming ⩾6 prescription drugs. Exclusion criteria were life expectancy <6 months and a seeming unwillingness to cooperate (poor compliance)...
January 2018: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/29315132/self-help-cognitive-behavior-therapy-for-working-women-with-problematic-hot-flushes-and-night-sweats-menos-work-a-multicenter-randomized-controlled-trial
#3
Claire Hardy, Amanda Griffiths, Sam Norton, Myra S Hunter
OBJECTIVE: The aim of the study was to examine the efficacy of an unguided, self-help cognitive behavior therapy (SH-CBT) booklet on hot flush and night sweat (HFNS) problem rating, delivered in a work setting. METHODS: Women aged 45 to 60 years, having 10 or more problematic HFNS a week, were recruited to a multicenter randomized controlled trial, via the occupational health/human resources departments of eight organizations. Participants were 1:1 randomized to SH-CBT or no treatment waitlist control (NTWC)...
January 8, 2018: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/29314866/spearmint-extract-improves-working-memory-in-men-and-women-with-age-associated-memory-impairment
#4
Kelli A Herrlinger, Kristin M Nieman, Kristen D Sanoshy, Brenda A Fonseca, Joanne A Lasrado, Arianne L Schild, Kevin C Maki, Keith A Wesnes, Michael A Ceddia
OBJECTIVE: The purpose of this study was to investigate the effects of supplementation with a spearmint (Mentha spicata L.) extract, high in polyphenols including rosmarinic acid, on cognitive performance, sleep, and mood in individuals with age-associated memory impairment (AAMI). DESIGN: Subjects with AAMI (N = 90; 67% female; age = 59.4 ± 0.6 years) were randomly assigned (n = 30/group) to consume 900, 600, or 0 mg/day (two capsules, once daily) spearmint extract for 90 days, in this double-blind, placebo-controlled trial...
January 9, 2018: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/29313445/body-composition-metabolism-sleep-psychological-and-eating-patterns-of-overtraining-syndrome-results-of-the-eros-study-eros-profile
#5
Flavio A Cadegiani, Claudio E Kater
Overtraining syndrome (OTS) is caused by an imbalance between training, nutrition and resting, and leads to decreased performance and fatigue; however, the precise underlying triggers of OTS remain unclear. This study investigated the body composition, metabolism, eating, sleeping patterns and mood states among participants with OTS. Selected participants were divided into OTS-affected athletes (OTS, n = 14), healthy athletes (ATL, n = 25), and healthy non-physically active controls (NCS, n = 12). Compared to ATL, OTS showed decreased sleep quality (p = 0...
January 9, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29302618/time-restricted-feeding-improves-circadian-dysfunction-as-well-as-motor-symptoms-in-the-q175-mouse-model-of-huntington-s-disease
#6
Huei-Bin Wang, Dawn H Loh, Daniel S Whittaker, Tamara Cutler, David Howland, Christopher S Colwell
Huntington's disease (HD) patients suffer from a progressive neurodegeneration that results in cognitive, psychiatric, cardiovascular, and motor dysfunction. Disturbances in sleep/wake cycles are common among HD patients with reports of delayed sleep onset, frequent bedtime awakenings, and fatigue during the day. The heterozygous Q175 mouse model of HD has been shown to phenocopy many HD core symptoms including circadian dysfunctions. Because circadian dysfunction manifests early in the disease in both patients and mouse models, we sought to determine if early intervention that improve circadian rhythmicity can benefit HD and delay disease progression...
January 2018: ENeuro
https://www.readbyqxmd.com/read/29297761/an-improved-model-to-predict-performance-under-mental-fatigue
#7
Henry T Peng, Fethi Bouak, Wenbi Wang, Renee Chow, Oshin Vartanian
Fatigue has become an increasing problem in our modern society. Using MATLAB as a generic modelling tool, a fatigue model was developed based on an existing one and compared with a commercial fatigue software for prediction of cognitive performance under total and partial sleep deprivation. The flexibility of our fatigue model allowed additions of new algorithms and mechanisms for non-sleep factors and countermeasures and thus improved model predictions and usability for both civilian and military applications...
January 8, 2018: Ergonomics
https://www.readbyqxmd.com/read/29287793/the-protective-effect-of-20-s-protopanaxadiol-ppd-against-chronic-sleep-deprivation-csd-induced-memory-impairments-in-mice
#8
Cong Lu, Liming Dong, Jingwei Lv, Yan Wang, Bei Fan, Fengzhong Wang, Xinmin Liu
Sleep deprivation (SD) is associated with oxidative stress that causes learning and memory impairment. 20(S)-Protopanaxadiol (PPD), one of the protopanaxadiol-type saponins, has antioxidant and neuroprotective effect. This study was designed to research the protective effect of PPD against cognitive deficits induced by chronic sleep deprivation (CSD) in mice. The CSD model was induced by subjecting the mice to our self-made Sleep Interruption Apparatus (SIA) continuously for 14 days. The memory enhancing effects of PPD were evaluated by behavioral tests and the related mechanism was further explored by observing the oxidative stress changes in the cortex and hippocampus of mice...
December 26, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29280229/subjective-sleep-related-variables-in-those-who-have-and-have-not-experienced-sleep-paralysis
#9
Dan Denis, Christopher C French, Melanie N Schneider, Alice M Gregory
Research suggests that poor sleep quality is related to the occurrence of sleep paralysis, although the precise relationship between these two variables is unknown. This association has generated interest due to the related possibility that improving sleep quality could help to combat episodes of sleep paralysis. To date, studies examining the association between sleep quality and sleep paralysis have typically measured sleep quality using general measures such as the global score of the Pittsburgh Sleep Quality Index (PSQI)...
December 27, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29259298/the-after-hours-circadian-mutant-has-reduced-phenotypic-plasticity-in-behaviors-at-multiple-timescales-and-in-sleep-homeostasis
#10
Silvia Maggi, Edoardo Balzani, Glenda Lassi, Celina Garcia-Garcia, Andrea Plano, Stefano Espinoza, Liudmila Mus, Federico Tinarelli, Patrick M Nolan, Raul R Gainetdinov, Fuat Balci, Thierry Nieus, Valter Tucci
Circadian clock is known to adapt to environmental changes and can significantly influence cognitive and physiological functions. In this work, we report specific behavioral, cognitive, and sleep homeostatic defects in the after hours (Afh) circadian mouse mutant, which is characterized by lengthened circadian period. We found that the circadian timing irregularities in Afh mice resulted in higher interval timing uncertainty and suboptimal decisions due to incapability of processing probabilities. Our phenotypic observations further suggested that Afh mutants failed to exhibit the necessary phenotypic plasticity for adapting to temporal changes at multiple time scales (seconds-to-minutes to circadian)...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29248857/catechol-o-methyltransferase-comt-genotype-affects-cognitive-control-during-total-sleep-deprivation
#11
Brieann C Satterfield, John M Hinson, Paul Whitney, Michelle A Schmidt, Jonathan P Wisor, Hans P A Van Dongen
Adaptive decision making is profoundly impaired by total sleep deprivation (TSD). This suggests that TSD impacts fronto-striatal pathways involved in cognitive control, where dopamine is a key neuromodulator. In the prefrontal cortex (PFC), dopamine is catabolized by the enzyme catechol-O-methyltransferase (COMT). A functional polymorphism (Val158Met) influences COMT's enzymatic activity, resulting in markedly different levels of prefrontal dopamine. We investigated the effect of this polymorphism on adaptive decision making during TSD...
November 26, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29244170/sleep-deprivation-triggers-cognitive-control-impairments-in-task-goal-switching
#12
Hichem Slama, Daphne Olivia Chylinski, Gaétane Deliens, Rachel Leproult, Rémy Schmitz, Philippe Peigneux
Study objectives: This study investigates the impact of sleep deprivation (SD) on task-goal switching, a key component of cognitive flexibility. Methods: Task-goal switching performance was tested after one night of regular sleep (n = 17 participants) or of total SD (n = 18). To understand the relationships between task-switching performance and other cognitive processes following SD, participants were tested for other key attentional (alertness and vigilance) and executive (inhibition and working memory) functions...
December 13, 2017: Sleep
https://www.readbyqxmd.com/read/29242263/temporal-trajectories-of-novel-object-recognition-performance-in-mice-exposed-to-intermittent-hypoxia
#13
David Gozal, Abdelnaby Khalyfa, Zhuanghong Qiao, Isaac Almendros, Ramon Farré
Intermittent hypoxia is one of the major perturbations of sleep-disordered breathing and has been causally implicated in neurocognitive deficits. However, the reversibility of such deficits is unclear.Male C57BL/6J mice were exposed to either intermittent hypoxia or room air for 3-240 days, and then half were randomly selected and allowed to recover in normoxic conditions for the same duration of the previous exposure. A novel object recognition (NOR) test was performed.NOR performance was stable over time in room air...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29239697/who-is-sleepier-on-the-night-shift-the-influence-of-bio-psycho-social-factors-on-subjective-sleepiness-of-female-nurses-during-the-night-shift
#14
Nataly Zion, Anat Drach-Zahavy, Tamar Shochat
Sleepiness is a common complaint during the night shift and may impair performance. The current study aimed to identify bio-psycho-social factors associated with subjective sleepiness during the night shift. Ninety-two female nurses working rotating shifts completed a sociodemographic questionnaire, the Munich ChronoType Questionaire for shift workers, the Pittsburg Sleep Quality Index and the Pre-sleep Arousal Scale. Subjective sleepiness was measured hourly during two night shifts using the Karolinska Sleepiness Scale, and activity monitors assessed sleep duration 24-hours before each shift...
December 14, 2017: Ergonomics
https://www.readbyqxmd.com/read/29234075/replay-of-large-scale-spatio-temporal-patterns-from-waking-during-subsequent-nrem-sleep-in-human-cortex
#15
Xi Jiang, Isaac Shamie, Werner K Doyle, Daniel Friedman, Patricia Dugan, Orrin Devinsky, Emad Eskandar, Sydney S Cash, Thomas Thesen, Eric Halgren
Animal studies support the hypothesis that in slow-wave sleep, replay of waking neocortical activity under hippocampal guidance leads to memory consolidation. However, no intracranial electrophysiological evidence for replay exists in humans. We identified consistent sequences of population firing peaks across widespread cortical regions during complete waking periods. The occurrence of these "Motifs" were compared between sleeps preceding the waking period ("Sleep-Pre") when the Motifs were identified, and those following ("Sleep-Post")...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229413/constant-light-environment-suppresses-maturation-and-reduces-complexity-of-new-born-neuron-processes-in-the-hippocampus-and-caudal-nidopallium-of-a-diurnal-corvid-implication-for-impairment-of-the-learning-and-cognitive-performance
#16
S K Tahajjul Taufique, Abhilash Prabhat, Vinod Kumar
Periodic day-night environment shapes the temporal pattern in the behaviour and physiology (e.g. 24-h activity-rest and sleep-wake cycles) and the advanced brain function, such as learning, memory and decision making. In a previous study, we showed the abolition of 24-h rhythm in the activity-rest pattern, and an attenuated cognitive performance in diurnal Indian house crows (Corvus splendens) under constant light (no-night; LL) environment. Present study extended this, and investigated LL-induced effects on the neurogenesis (birth, maturation and neurite complexity of new born neurons) in the hippocampus and caudal nidopallium, the brain regions directly associated with learning and cognition in birds...
December 8, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29226495/forgetting-to-remember-prospective-memory-within-the-context-of-pain
#17
R Gatzounis, M G S Schrooten, G Crombez, J W S Vlaeyen
BACKGROUND: Pain interferes with cognitive functioning in several ways. Among other symptoms, pain patients often report difficulties with remembering future intentions. It remains unclear, however, whether it is the pain per se that impairs prospective remembering or other factors that often characterize people with pain (e.g. poor sleep quality). In this experiment, we investigated whether prospective memory is impaired within the context of pain, and whether this impairment is enhanced when the threat value of pain is increased...
December 11, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29224982/perceptual-learning-induces-changes-in-early-and-late-visual-evoked-potentials
#18
Maryam Ahmadi, Elizabeth A McDevitt, Michael A Silver, Sara C Mednick
Studies of visual cortical responses following visual perceptual learning (VPL) have produced diverse results, revealing neural changes in early and/or higher-level visual cortex as well as changes in regions responsible for higher cognitive processes such as attentional control. In this study, we investigated substrates of VPL in the human brain by recording visual evoked potentials with high-density electroencephalography (hdEEG) before (Session 1) and after (Session 2) training on a texture discrimination task (TDT), with two full nights of sleep between sessions...
December 7, 2017: Vision Research
https://www.readbyqxmd.com/read/29219104/adherence-to-24-hour-movement-guidelines-for-the-early-years-and-associations-with-social-cognitive-development-among-australian-preschool-children
#19
Dylan P Cliff, Jade McNeill, Stewart A Vella, Steven J Howard, Rute Santos, Marijka Batterham, Edward Melhuish, Anthony D Okely, Marc de Rosnay
BACKGROUND: The new Australian 24-Hour Movement Guidelines for the Early Years recommend that, for preschoolers, a healthy 24-h includes: i) ≥180 min of physical activity, including ≥60 min of energetic play, ii) ≤1 h of sedentary screen time, and iii) 10-13 h of good quality sleep. Using an Australian sample, this study reports the proportion of preschool children meeting these guidelines and investigates associations with social-cognitive development. METHODS: Data from 248 preschool children (mean age = 4...
November 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29216834/inventory-of-real-world-data-sources-in-parkinson-s-disease
#20
Audrey Tanguy, Linus Jönsson, Lianna Ishihara
BACKGROUND: Real world data have an important role to play in the evaluation of epidemiology and burden of disease; and in assisting health-care decision-makers, especially related to coverage and payment decisions. However, there is currently no overview of the existing longitudinal real world data sources in Parkinson's disease (PD) in the USA. Such an assessment can be very helpful, to support a future effort to harmonize real world data collection and use the available resources in an optimal way...
December 8, 2017: BMC Neurology
keyword
keyword
74610
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"