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https://www.readbyqxmd.com/read/29776623/nonrestorative-sleep-in-healthy-young-adults-without-insomnia-associations-with-executive-functioning-fatigue-and-pre-sleep-arousal
#1
Ruben Tinajero, Paula G Williams, Matthew R Cribbet, Holly K Rau, Daniel L Bride, Yana Suchy
OBJECTIVES: Previous research suggests that nonrestorative sleep (NRS), even in the absence of insomnia symptoms or other sleep disorders, may be associated with daytime dysfunction. This study examined the association between NRS and daytime dysfunction in healthy adults screened for insomnia and sleep apnea. DESIGN: Multi-day assessment approach. SETTING: Community-based adults and college students. PARTICIPANTS: Healthy young adults without insomnia and sleep apnea (n = 79; 68% female, mean age = 27...
June 2018: Sleep Health
https://www.readbyqxmd.com/read/29776619/poor-sleep-quality-and-insufficient-sleep-of-a-collegiate-student-athlete-population
#2
Cheri D Mah, Eric J Kezirian, Brandon M Marcello, William C Dement
OBJECTIVE: Poor and inadequate sleep negatively impact cognitive and physical functioning and may also affect sports performance. The study aim is to examine sleep quality, sleep duration, and daytime sleepiness in collegiate student-athletes across a wide range of sports. DESIGN: Questionnaire. SETTING: University setting. PARTICIPANTS: 628 athletes across 29 varsity teams at Stanford University. MEASUREMENTS: Athletes completed a questionnaire inquiring about sleep quality via a modified Pittsburgh Sleep Quality Index (PSQI), sleep duration, and daytime sleepiness via Epworth Sleepiness Scale...
June 2018: Sleep Health
https://www.readbyqxmd.com/read/29775702/abnormal-sleep-architecture-and-hippocampal-circuit-dysfunction-in-a-mouse-model-of-fragile-x-syndrome
#3
Christine E Boone, Heydar Davoudi, Jon B Harrold, David J Foster
Fragile X syndrome (FXS) is the most common heritable cause of intellectual disability and single-gene cause of autism spectrum disorder. The Fmr1 null mouse models much of the human disease including hyperarousal, sensory hypersensitivity, seizure activity, and hippocampus-dependent cognitive impairment. Sleep architecture is disorganized in FXS patients, but has not been examined in Fmr1 knockout (Fmr1-KO) mice. Hippocampal neural activity during sleep, which is implicated in memory processing, also remains uninvestigated in Fmr1-KO mice...
May 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29773948/the-impact-of-total-sleep-deprivation-upon-cognitive-functioning-in-firefighters
#4
Sławomir Kujawski, Joanna Słomko, Małgorzata Tafil-Klawe, Monika Zawadka-Kunikowska, Justyna Szrajda, Julia L Newton, Paweł Zalewski, Jacek J Klawe
Introduction: Firefighters as a profession are required to maintain high levels of attention for prolonged periods. However, total sleep deprivation (TSD) could influence negatively upon performance, particularly when the task is prolonged and repetitive. Purpose: The aim of this study is to examine the influence of TSD on cognitive functioning in a group of firefighters. Subjects and methods: Sixty volunteers who were active male fire brigade officers were examined with a computerized battery test that consisted of simple reaction time (SRT) (repeated three times), choice reaction time, visual attention test, and delayed matching to sample...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29773210/cognitive-and-behavioral-effects-of-obstructive-sleep-apnea-syndrome-in-children-a-systematic-literature-review
#5
REVIEW
Thiago da Silva Gusmão Cardoso, Sabine Pompéia, Mônica Carolina Miranda
Obstructive sleep apnea syndrome (OSA) is a common respiratory sleep disorder in children that is believed to adversely affect both quality of life and cognition. The purpose of the present systematic review was to obtain evidence of the impact of OSA on children's cognitive/behavioral abilities from primary studies published in MEDLINE/PubMed, LILACS, SciELO, ISI Web of Science, and PsycINFO databases from 2002 to 2016. Of the 649 articles found, only 34 met the eligibility criteria: studies that evaluated cognition, behavior, and/or academic achievement of children meeting clinical criteria for OSA to compare their data to those of healthy controls or normative data, provided that the samples did not present conditions that might affect cognition/behavior irrespective of OSA...
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29766029/seizure-suppressant-and-neuroprotective-effects-of-encapsulated-bdnf-producing-cells-in-a-rat-model-of-temporal-lobe-epilepsy
#6
Chiara Falcicchia, Giovanna Paolone, Dwaine F Emerich, Francesca Lovisari, William J Bell, Tracie Fradet, Lars U Wahlberg, Michele Simonato
Brain-derived neurotrophic factor (BDNF) may represent a therapeutic for chronic epilepsy, but evaluating its potential is complicated by difficulties in its delivery to the brain. Here, we describe the effects on epileptic seizures of encapsulated cell biodelivery (ECB) devices filled with genetically modified human cells engineered to release BDNF. These devices, implanted into the hippocampus of pilocarpine-treated rats, highly decreased the frequency of spontaneous seizures by more than 80%. These benefits were associated with improved cognitive performance, as epileptic rats treated with BDNF performed significantly better on a novel object recognition test...
June 15, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29758571/effects-of-a-20-min-nap-post-normal-and-jet-lag-conditions-on-p300-components-in-athletes
#7
Elisabeth Petit, Hubert Bourdin, Grégory Tio, Omer Yenil, Emmanuel Haffen, Fabienne Mougin
Post-lunch sleepiness belongs to biological rhythms. Athletes take a nap to counteract afternoon circadian nadir, in prevision of disturbed sleep. This study examined the effects of brief post-lunch nap on vigilance in young and healthy athletes. The P300 components, physiological and cognitive performances were assessed either after nap or rest, following a night of normal sleep (NSC) or simulated jet lag condition (5-h advance-JLC). P300 wave is the positive deflection at about 300 ms in response to a rare stimulus, representing higher information processing...
May 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29755349/ibogaine-acute-administration-in-rats-promotes-wakefulness-long-lasting-rem-sleep-suppression-and-a-distinctive-motor-profile
#8
Joaquín González, José P Prieto, Paola Rodríguez, Matías Cavelli, Luciana Benedetto, Alejandra Mondino, Mariana Pazos, Gustavo Seoane, Ignacio Carrera, Cecilia Scorza, Pablo Torterolo
Ibogaine is a potent psychedelic alkaloid that has been the focus of intense research because of its intriguing anti-addictive properties. According to anecdotic reports, ibogaine has been originally classified as an oneirogenic psychedelic; i.e., induces a dream-like cognitive activity while awake. However, the effects of ibogaine administration on wakefulness (W) and sleep have not been thoroughly assessed. The main aim of our study was to characterize the acute effects of ibogaine administration on W and sleep...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29755338/a-review-of-the-pedunculopontine-nucleus-in-parkinson-s-disease
#9
REVIEW
Isobel T French, Kalai A Muthusamy
The pedunculopontine nucleus (PPN) is situated in the upper pons in the dorsolateral portion of the ponto-mesencephalic tegmentum. Its main mass is positioned at the trochlear nucleus level, and is part of the mesenphalic locomotor region (MLR) in the upper brainstem. The human PPN is divided into two subnuclei, the pars compacta (PPNc) and pars dissipatus (PPNd), and constitutes both cholinergic and non-cholinergic neurons with afferent and efferent projections to the cerebral cortex, thalamus, basal ganglia (BG), cerebellum, and spinal cord...
2018: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29752975/changes-in-mood-fatigue-sleep-cognitive-performance-and-stress-hormones-among-instructors-conducting-stressful-military-captivity-survival-training
#10
Oshin Vartanian, Brenda Fraser, Doug Saunders, Cindy Suurd Ralph, Harris R Lieberman, Charles A Morgan, Bob Cheung
Numerous studies have examined the effects of captivity survival training on psychological and physiological function in trainees. In the present study we shifted the focus to instructors, and measured the effects that the delivery of training exerts on their levels of stress and performance. Because instructors are called upon to perform difficult duties (e.g., mock interrogations) under extreme conditions, we hypothesized that significant increases in psychological and physiological indices of stress would occur due to training...
May 9, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29750977/high-definition-transcranial-direct-current-stimulation-changes-older-adults-subjective-sleep-and-corresponding-resting-state-functional-connectivity
#11
Jing Sheng, Chao Xie, Dong-Qiong Fan, Xu Lei, Jing Yu
With advanced age, older adults show functional deterioration in sleep. Transcranial direct current stimulation (tDCS), a noninvasive brain stimulation, modulates individuals' behavioral performance in various cognitive domains. However, the modulation effect and neural mechanisms of tDCS on sleep, especially for the elderly population are not clear. Here, we aimed to investigate whether high-definition transcranial direct current stimulation (HD-tDCS) could modulate community-dwelling older adults' subjective sleep and whether these potential improvements are associated with the large-scale brain activity alterations recorded by functional magnetic resonance imaging...
May 8, 2018: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29750547/uncertain-call-likelihood-negatively-affects-sleep-and-next-day-cognitive-performance-while-on-call-in-a-laboratory-environment
#12
Madeline Sprajcer, Sarah M Jay, Grace E Vincent, Andrew Vakulin, Leon Lack, Sally A Ferguson
On-call working arrangements are employed in a number of industries to manage unpredictable events, and often involve tasks that are safety- or time-critical. This study investigated the effects of call likelihood during an overnight on-call shift on self-reported pre-bed anxiety, sleep and next-day cognitive performance. A four-night laboratory-based protocol was employed, with an adaptation, a control and two counterbalanced on-call nights. On one on-call night, participants were instructed that they would definitely be called during the night, while on the other on-call night they were told they may be called...
May 11, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29747936/pulmonary-screening-in-subjects-after-the-fontan-procedure
#13
Deborah R Liptzin, Michael V Di Maria, Adel Younoszai, Michael R Narkewicz, Sarah L Kelly, Kelly R Wolfe, Livia A Veress
OBJECTIVES: To review the pulmonary findings of the first 51 patients who presented to our interdisciplinary single-ventricle clinic after undergoing the Fontan procedure. STUDY DESIGN: We performed an Institutional Review Board-approved retrospective review of 51 patients evaluated following the Fontan procedure. Evaluation included history, physical examination, pulmonary function testing, and 6-minute walk. Descriptive statistics were used to describe the population and testing data...
May 7, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29744796/arterial-spin-labeling-reveals-relationships-between-resting-cerebral-perfusion-and-motor-learning-in-parkinson-s-disease
#14
Amy Barzgari, Jitka Sojkova, N Maritza Dowling, Vincent Pozorski, Ozioma C Okonkwo, Erika J Starks, Jennifer Oh, Frances Thiesen, Alexandra Wey, Christopher R Nicholas, Sterling Johnson, Catherine L Gallagher
Parkinson's disease (PD) is an age-related neurodegenerative disease that produces changes in movement, cognition, sleep, and autonomic function. Motor learning involves acquisition of new motor skills through practice, and is affected by PD. The purpose of the present study was to evaluate regional differences in resting cerebral blood flow (rCBF), measured using arterial spin labeling (ASL) MRI, during a finger-typing task of motor skill acquisition in PD patients compared to age- and gender-matched controls...
May 9, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29740782/quality-of-life-problems-and-needs-of-disease-free-breast-cancer-survivors-5-years-after-diagnosis
#15
Martina E Schmidt, Joachim Wiskemann, Karen Steindorf
PURPOSE: After cancer treatment, it is desirable to maintain or regain a high quality of life (QoL) and the ability to accomplish everyday tasks well. Therefore, we substantiated the scarce knowledge regarding long-term QoL after breast cancer, burdensome problems, and unmet needs for more support. METHODS: Disease-free breast cancer survivors (n = 190) who had participated in two randomized controlled exercise trials during primary treatment were followed up to 5 years post-diagnosis...
May 8, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29734989/lack-of-resilience-is-related-to-stress-related-sleep-reactivity-hyperarousal-and-emotion-dysregulation-in-insomnia-disorder
#16
Laura Palagini, Umberto Moretto, Martina Novi, Isabella Masci, Danila Caruso, Christopher L Drake, Dieter Riemann
STUDY OBJECTIVES: According to the diathesis-stress model of insomnia, insomnia may develop in vulnerable individuals in response to stress. Resilience is a psychobiological factor that determines an individual's capacity to adapt successfully to stressful events and low resilience increases vulnerability for development of mental disorders. The aim was to explore resilience in subjects with insomnia and its relationship with the factors that contribute to its development and perpetuation...
April 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29734979/executive-and-visuospatial-dysfunction-in-patients-with-primary-restless-legs-syndrome-willis-ekbom-disease-study-of-a-chinese-population
#17
Gen Li, Huidong Tang, Jie Chen, Xuemei Qi, Shengdi Chen, Jianfang Ma
STUDY OBJECTIVES: The aim of the study was to investigate the cognitive function of patients with primary restless legs syndrome/Willis-Ekbom disease (RLS/WED) in a Chinese population. METHODS: A total of 40 patients with RLS/WED who were drug naïve and 40 controls, matched by age, sex, and educational level, were evaluated by cognitive function assessments, including the Chinese version of the Mini-Mental State Examination (MMSE-C), clock drawing test (CDT), Auditory Verbal Learning Test (AVLT), Rey-Osterrieth Complex Figure Test (CFT), and Stroop Color Word Test (SCWT)...
April 30, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29706447/spared-and-impaired-sleep-dependent-memory-consolidation-in-schizophrenia
#18
Bengi Baran, David Correll, Tessa C Vuper, Alexandra Morgan, Simon J Durrant, Dara S Manoach, Robert Stickgold
OBJECTIVE: Cognitive deficits in schizophrenia are the strongest predictor of disability and effective treatment is lacking. This reflects our limited mechanistic understanding and consequent lack of treatment targets. In schizophrenia, impaired sleep-dependent memory consolidation correlates with reduced sleep spindle activity, suggesting sleep spindles as a potentially treatable mechanism. In the present study we investigated whether sleep-dependent memory consolidation deficits in schizophrenia are selective...
April 26, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29698731/tracking-wakefulness-as-it-fades-micro-measures-of-alertness
#19
Sridhar R Jagannathan, Alejandro Ezquerro-Nassar, Barbara Jachs, Olga V Pustovaya, Corinne A Bareham, Tristan A Bekinschtein
A major problem in psychology and physiology experiments is drowsiness: around a third of participants show decreased wakefulness despite being instructed to stay alert. In some non-visual experiments participants keep their eyes closed throughout the task, thus promoting the occurrence of such periods of varying alertness. These wakefulness changes contribute to systematic noise in data and measures of interest. To account for this omnipresent problem in data acquisition we defined criteria and code to allow researchers to detect and control for varying alertness in electroencephalography (EEG) experiments under eyes-closed settings...
April 23, 2018: NeuroImage
https://www.readbyqxmd.com/read/29694980/a-twelve-week-moderate-exercise-programme-improved-symptoms-of-depression-insomnia-and-verbal-learning-in-post-aneurysmal-subarachnoid-haemorrhage-patients-a-comparison-with-meningioma-patients-and-healthy-controls
#20
Flora Colledge, Serge Brand, Uwe Pühse, Edith Holsboer-Trachsler, Stefan Zimmerer, Ramona Schleith, Markus Gerber
OBJECTIVES: Deficits in psychological functioning, cognitive functioning, and sleep are frequently experienced by individuals who have survived aneurysmal subarachnoid haemorrhage (aSAH). Exercise has been shown to improve these domains; to date, it has never been explored in patients following aSAH. The aim of this exploratory study is to compare the effects of an exercise programme in this population with another patient group, and a group of healthy controls. METHODS: The present study explored the effects of 12 weeks of moderate aerobic exercise training on 15 aSAH patients, 16 meningioma patients, and 17 healthy controls...
April 25, 2018: Neuropsychobiology
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