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https://www.readbyqxmd.com/read/28340050/naps-enhance-executive-attention-in-preschool-aged-children
#1
Amanda Cremone, Jennifer M McDermott, Rebecca M C Spencer
Executive attention is impaired following sleep loss in school-aged children, adolescents, and adults. Whether naps improve attention relative to nap deprivation in preschool-aged children is unknown. The aim of this study was to compare executive attention in preschool children following a nap and an interval of wake.  Sixty-nine children, 35-70 months of age, completed a Flanker task to assess executive attention following a nap and an equivalent interval of wake.  Overall, accuracy was greater after the nap compared with the wake interval...
March 13, 2017: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/28339182/widespread-and-indiscriminate-nanosilver-use-genuine-potential-for-microbial-resistance
#2
Cindy Gunawan, Christopher P Marquis, Rose Amal, Georgios A Sotiriou, Scott A Rice, Elizabeth J Harry
In this era of increasing antibiotic resistance, the use of alternative antimicrobials such as silver has become more widespread. Superior antimicrobial activity has been provided through fabrication of silver nanoparticles or nanosilver (NAg), which imparts cytotoxic actions distinct from those of bulk silver. In the wake of the recent discoveries of bacterial resistance to NAg and its rising incorporation in medical and consumer goods such as wound dressings and dietary supplements, we argue that there is an urgent need to monitor the prevalence and spread of NAg microbial resistance...
March 24, 2017: ACS Nano
https://www.readbyqxmd.com/read/28338525/orexin-action-on-oxytocin-neurons-in-the-paraventricular-nucleus-of-the-hypothalamus
#3
Yuko Maejima, Shinichi Takahashi, Katsuya Takasu, Seiichi Takenoshita, Yoichi Ueta, Kenju Shimomura
Oxytocin neurons in the paraventricular nucleus (PVN) of the hypothalamus play an important role in food intake regulation. It has been shown that the secretion of oxytocin from the hypothalamus shows a diurnal circadian rhythmic pattern and disturbance of this pattern leads to the development of obesity. However, whether oxytocin secretion from the PVN has a diurnal pattern remains unknown. Here, we show that oxytocin secretion from the PVN does have a diurnal pattern and that the terminals of orexin neurons, the neuropeptide responsible for regulating the sleep-wake rhythm, are synapsed with PVN oxytocin neurons...
March 23, 2017: Neuroreport
https://www.readbyqxmd.com/read/28335000/better-than-sham-a-double-blind-placebo-controlled-neurofeedback-study-in-primary-insomnia
#4
Manuel Schabus, Hermann Griessenberger, Maria-Teresa Gnjezda, Dominik P J Heib, Malgorzata Wislowska, Kerstin Hoedlmoser
Neurofeedback training builds upon the simple concept of instrumental conditioning, i.e. behaviour that is rewarded is more likely to reoccur, an effect Thorndike referred to as the 'law of effect'. In the case of neurofeedback, information about specific electroencephalographic activity is fed back to the participant who is rewarded whenever the desired electroencephalography pattern is generated. If some kind of hyperarousal needs to be addressed, the neurofeedback community considers sensorimotor rhythm neurofeedback as the gold standard...
February 23, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334879/altered-sleep-homeostasis-correlates-with-cognitive-impairment-in-patients-with-focal-epilepsy
#5
Melanie Boly, Benjamin Jones, Graham Findlay, Erin Plumley, Armand Mensen, Bruce Hermann, Guilio Tononi, Rama Maganti
In animal studies, both seizures and interictal spikes induce synaptic potentiation. Recent evidence suggests that electroencephalogram slow wave activity during sleep reflects synaptic potentiation during wake, and that its homeostatic decrease during the night is associated with synaptic renormalization and its beneficial effects. Here we asked whether epileptic activity induces plastic changes that can be revealed by high-density electroencephalography recordings during sleep in 15 patients with focal epilepsy and 15 control subjects...
March 14, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334632/longitudinal-relationships-of-sleep-and-inhibitory-control-deficits-to-early-adolescent-cigarette-and-alcohol-use
#6
Christopher M Warren, Nathaniel R Riggs, Mary Ann Pentz
Research in older adolescents suggests insufficient sleep may increase substance use initiation risk. This study tested whether sleep duration and dysregulation of sleep-wake patterns in late-elementary school youth were prospectively associated with cigarette and alcohol use initiation and how sleep-related changes in inhibitory control mediate these relationships. Average sleep duration at 4th grade predicted 6th grade cigarette but not alcohol use, however indirect effects were identified through 5th grade inhibitory control to both cigarette and alcohol use...
March 20, 2017: Journal of Adolescence
https://www.readbyqxmd.com/read/28334175/attenuated-fast-steady-state-visual-evoked-potentials-during-human-sleep
#7
Omer Sharon, Yuval Nir
During sleep, external sensory events rarely elicit a behavioral response or affect perception. However, how sensory processing differs between wakefulness and sleep remains unclear. A major difficulty in this field stems from using brief auditory stimuli that often trigger nonspecific high-amplitude "K-complex" responses and complicate interpretation. To overcome this challenge, here we delivered periodic visual flicker stimulation across sleep and wakefulness while recording high-density electroencephalography (EEG) in humans...
February 25, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333530/hard-earned-wisdom-exploratory-processing-of-difficult-life-experience-is-positively-associated-with-wisdom
#8
Nic M Weststrate, Judith Glück
Laypersons and experts believe that wisdom is cultivated through a diverse range of positive and negative life experiences. Yet, not all individuals with life experience are wise. We propose that one possible determinant of growth in wisdom from life experience is self-reflection. In a life span sample of adults (N = 94) ranging from 26 to 92 years of age, we examined wisdom's relationship to self-reflection by investigating "why" people report reflecting on the past (i.e., reminiscence functions) and "how" they reflect within autobiographical memories of difficult life events (i...
April 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28333529/the-long-arm-of-childhood-preschool-associations-with-adolescent-health
#9
Terri J Sabol, Lindsay Till Hoyt
The current study examines the extent to which participation in preschool at age 4 is associated with blood pressure, body mass index, and awakening cortisol at age 15. We capitalize on data from the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development to examine differences in adolescent health among children who attended preschool, parental care, or home-based care at age 4 (n = 742). Using quasi-experimental methods, we found that preschool participation was associated with multiple positive health outcomes in adolescence...
April 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28333525/a-potential-psychological-mechanism-linking-disaster-related-prenatal-maternal-stress-with-child-cognitive-and-motor-development-at-16-months-the-qf2011-queensland-flood-study
#10
Katrina M Moss, Gabrielle Simcock, Vanessa Cobham, Sue Kildea, Guillaume Elgbeili, David P Laplante, Suzanne King
Fetal exposure to prenatal maternal stress can have lifelong consequences, with different types of maternal stress associated with different areas of child development. Fewer studies have focused on motor skills, even though they are strongly predictive of later development across a range of domains. Research on mechanisms of transmission has identified biological cascades of stress reactions, yet links between psychological stress reactions are rarely studied. This study investigates the relationship between different aspects of disaster-related prenatal maternal stress and child cognitive and motor development, and proposes a cascade of stress reactions as a potential mechanism of transmission...
April 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28332858/modified-cognitive-behavioral-therapy-for-insomnia-in-depressed-adolescents-a-pilot-study
#11
Deirdre A Conroy, Alison M Czopp, Dawn M Dore-Stites, Richard R Dopp, Roseanne Armitage, Timothy F Hoban, J Todd Arnedt
OBJECTIVE/BACKGROUND: The purpose of the study was to pilot a five-week insomnia treatment in adolescents with major depressive disorder (MDD) and insomnia. This was an open-label trial of a modified-group cognitive behavioral therapy for insomnia (CBTI). PARTICIPANTS: Adolescents with MDD (n = 16; mean age = 17.3 +/- 1.7), characterized by the Children's Depression Rating Scale-Revised T-score ≥ 55 and insomnia, characterized by > 30 min to fall or return to sleep and an Insomnia Severity Index (ISI) score of ≥ 7 participated...
March 23, 2017: Behavioral Sleep Medicine
https://www.readbyqxmd.com/read/28332441/changes-in-carotid-artery-intima-media-thickness-during-the-cardiac-cycle-a-comparative-study-in-early-childhood-mid-childhood-and-adulthood
#12
Kuna Rueb, Jonathan Mynard, Richard Liu, Melissa Wake, Peter Vuillermin, Anne-Louise Ponsonby, Diana Zannino, David P Burgner
BACKGROUND: Carotid intima-media thickness (CIMT), an ultrasonographic marker of cardiovascular risk, is increasingly used in adults and children. The choice of specific images used to quantify CIMT from a cine sequence is often based on image quality rather than on a consistent point in the cardiac cycle. This methodological study quantified the imprecision that may be introduced by variation of CIMT during the cardiac cycle. PATIENTS AND METHODS: Data from four-year-olds, 11 to 12-year-olds, and adults (n=30 each age group) were selected retrospectively from two population-derived studies...
March 23, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28332103/parental-behaviors-and-sleep-wake-patterns-of-infants-and-toddlers-in-hong-kong-china
#13
Xin-Ting Yu, Avi Sadeh, Hugh Simon Lam, Jodi A Mindell, Albert Martin Li
BACKGROUND: To describe the sleep patterns of children below 36 months in Hong Kong, and evaluate the associations between parental behaviors and childhood sleep/wake patterns. METHODS: Parents of 1049 infants and toddlers completed an internet-based expanded version of the Brief Infant Sleep Questionnaire. RESULTS: Total sleep duration (P<0.001), frequency (P<0.001) and duration (P<0.001) of nocturnal awakenings decreased with age, whereas the longest sleep duration (P<0...
March 22, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28331991/systematic-review-and-meta-analysis-of-adolescent-cognitive-behavioral-sleep-interventions
#14
REVIEW
Matthew J Blake, Lisa B Sheeber, George J Youssef, Monika B Raniti, Nicholas B Allen
This systematic review and meta-analysis examined the efficacy of adolescent cognitive-behavioral sleep interventions. Searches of PubMed, PsycINFO, CENTRAL, EMBASE, and MEDLINE were performed from inception to May 1, 2016, supplemented with manual screening. Nine trials were selected (n = 357, mean age = 14.97 years; female = 61.74%). Main outcomes were subjective (sleep diary/questionnaire) and objective (actigraphy) total sleep time (TST), sleep onset latency (SOL), sleep efficiency (SE), and wake after sleep onset (WASO)...
March 22, 2017: Clinical Child and Family Psychology Review
https://www.readbyqxmd.com/read/28331323/bipolar-disorder-recurrence-prevention-using-self-monitoring-daily-mood-charts-case-reports-from-a-5-year-period
#15
Norio Yasui-Furukori, Kazuhiko Nakamura
Mood symptoms in bipolar disorders are significantly related to psychosocial events, and the personalized identification of symptom triggers is important. Ecological momentary assessments have been used in paper-and-pencil form to explore emotional reactivity to daily life stress in patients with bipolar disorder. However, there are few data on long-term recurrence prevention effects using ecological momentary assessments. Subjects were three outpatients with bipolar disorder who had a history of at least one admission...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28329386/eeg-changes-accompanying-successive-cycles-of-sleep-restriction-with-and-without-naps-in-adolescents
#16
Ju Lynn Ong, June C Lo, Joshua J Gooley, Michael W L Chee
Study Objectives: To investigate the temporal evolution of sleep EEG changes in adolescents across two cycles of sleep restriction and recovery simulating an intense school week and to examine the effect of an afternoon nap on nocturnal sleep. Methods: A parallel-group design, quasi-laboratory study was conducted in a student hostel. Fifty-seven adolescents (31 males, age=15-19y) were randomly assigned to nap or no nap groups. Participants underwent a 15-day protocol comprising two sleep restriction (5h time-in-bed) and recovery (9h time-in-bed) cycles...
March 3, 2017: Sleep
https://www.readbyqxmd.com/read/28329381/the-effects-of-an-afternoon-nap-on-episodic-memory-in-young-and-older-adults-napping-and-aging
#17
Michael K Scullin, Jacqueline Fairley, Michael J Decker, Donald L Bliwise
Study Objectives: In young adults, napping is hypothesized to benefit episodic memory retention (e.g., via consolidation). Whether this relationship is present in older adults has not been adequately tested, but is an important question because older adults display marked changes in sleep and memory. Design: Between-subjects design. Setting: Sleep laboratory at Emory University School of Medicine. Participants: 50 healthy young adults (18-29) and 45 community dwelling older adults (58-83)...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28329370/sleep-characteristics-and-daytime-cortisol-levels-in-older-adults
#18
Ethan Morgan, L Philip Schumm, Martha McClintock, Linda Waite, Diane S Lauderdale
Objective: Older adults frequently report sleep problems and are at increased risk for cardiometabolic disruption. Experimental sleep restriction of younger adults has suggested that cortisol may be on the pathway between sleep restriction and cardiometabolic disease. We investigated whether the natural variation in sleep among older adults is associated with daytime cortisol level. Methods: Salivary cortisol samples and actigraphy sleep data were collected from a random subsample of participants in the National Social Life, Health and Aging Project, a nationally-representative probability sample of adults aged 62-90 (N=672)...
March 9, 2017: Sleep
https://www.readbyqxmd.com/read/28329356/sleep-disturbances-and-risk-of-hospitalization-and-inpatient-days-among-older-women
#19
Misti L Paudel, Brent C Taylor, Tien N Vo, Allyson M Kats, John T Schousboe, Li-Yung Lui, Charles E McCulloch, Lisa Langsetmo, Sonia Ancoli-Israel, Susan Redline, Kristine Yaffe, Katie L Stone, Teresa A Hillier, Kristine E Ensrud
Study Objective: Determine the associations of sleep disturbances with hospitalization risk among older women. Methods: 1,827 women (mean age 83.6 years) participating in Study of Osteoporotic Fractures Year 16 (Y16) examination (2002-2004) linked with Medicare and/or HMO claims. At Y16 examination, sleep/wake parameters were measured by actigraphy (total sleep time [TST], sleep efficiency [SE], sleep latency [SL], and wake after sleep onset [WASO]) and subjective sleep measures (sleep quality [Pittsburgh Sleep Quality Index] and daytime sleepiness [Epworth Sleepiness Scale]) were assessed by questionnaire...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28329204/new-neuroscience-tools-that-are-identifying-the-sleep-wake-circuit
#20
Priyattam J Shiromani, John H Peever
The complexity of the brain is yielding to technology. In the area of sleep neurobiology, conventional neuroscience tools such as lesions, cell recordings, c-Fos, and axon-tracing methodologies have been instrumental in identifying the complex and intermingled populations of sleep- and arousal-promoting neurons that orchestrate and generate wakefulness, NREM, and REM sleep. In the last decade, new technologies such as optogenetics, chemogenetics and the CRISPR-Cas system have begun to transform how biologists understand the finer details associated with sleep-wake regulation...
March 1, 2017: Sleep
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