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https://www.readbyqxmd.com/read/29341785/total-sleep-deprivation-does-not-significantly-degrade-semantic-encoding
#1
K A Honn, D A Grant, J M Hinson, P Whitney, Hpa Van Dongen
Sleep deprivation impairs performance on cognitive tasks, but it is unclear which cognitive processes it degrades. We administered a semantic matching task with variable stimulus onset asynchrony (SOA) and both speeded and self-paced trial blocks. The task was administered at the baseline and 24 hours later after 30.8 hours of total sleep deprivation (TSD) or matching well-rested control. After sleep deprivation, the 20% slowest response times (RTs) were significantly increased. However, the semantic encoding time component of the RTs remained at baseline level...
January 17, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29341025/multiple-sclerosis-prevalence-and-impact
#2
Heather Gilmour, Pamela L Ramage-Morin, Suzy L Wong
This article provides new information about multiple sclerosis (MS) using the 2010/2011 Neurological Conditions Prevalence File, the 2011/2012 Survey of Neurological Conditions in Institutions in Canada, and the 2011 Survey on Living with Neurological Conditions in Canada. An estimated 93,500 Canadians living in private households and 3,800 residents of long-term care institutions had been diagnosed with MS. Prevalence estimates were 159 and 418 cases per 100,000 population for men and women, respectively; 2...
January 17, 2018: Health Reports
https://www.readbyqxmd.com/read/29339558/does-sleep-facilitate-the-consolidation-of-allocentric-or-egocentric-representations-of-implicitly-learned-visual-motor-sequence-learning
#3
Jeremy Viczko, Valya Sergeeva, Laura B Ray, Adrian M Owen, Stuart M Fogel
Sleep facilitates the consolidation (i.e., enhancement) of simple, explicit (i.e., conscious) motor sequence learning (MSL). MSL can be dissociated into egocentric (i.e., motor) or allocentric (i.e., spatial) frames of reference. The consolidation of the allocentric memory representation is sleep-dependent, whereas the egocentric consolidation process is independent of sleep or wake for explicit MSL. However, it remains unclear the extent to which sleep contributes to the consolidation of implicit (i.e., unconscious) MSL, nor is it known what aspects of the memory representation (egocentric, allocentric) are consolidated by sleep...
February 2018: Learning & Memory
https://www.readbyqxmd.com/read/29337407/insufficient-sleep-syndrome-an-unrecognized-but-important-clinical-entity
#4
Jun Kohyama, Yuki Anzai, Makoto Ono, Ai Kishino, Keita Tamanuki, Kazuma Takada, Kento Inoue, Maho Horiuchi, Yoshiho Hatai
BACKGROUND: In the Tokyo Bay Urayasu Ichikawa Medical Centre, a sleep clinic for adults and children was established in August 2012. As few sleep clinics are available in Japan that are specifically for children, this clinic provides the opportunity to provide data on child patients who have been suffering from sleep problems and who visited the sleep clinic. METHODS: Records of patients who visited the sleep clinic at the Tokyo Bay Urayasu Ichikawa Medical Centre at the age of 20 years or younger on their first visit were retrospectively examined, and their initial and final diagnoses were examined...
January 16, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29335233/internet-based-group-intervention-for-ovarian-cancer-survivors-feasibility-and-preliminary-results
#5
Ellen M Kinner, Jessica S Armer, Bonnie A McGregor, Jennifer Duffecy, Susan Leighton, Marya E Corden, Janine Gauthier Mullady, Frank J Penedo, Susan K Lutgendorf
BACKGROUND: Development of psychosocial group interventions for ovarian cancer survivors has been limited. Drawing from elements of cognitive-behavioral stress management (CBSM), mindfulness-based stress reduction (MBSR), and acceptance and commitment therapy (ACT), we developed and conducted preliminary testing of an Internet-based group intervention tailored specifically to meet the needs of ovarian cancer survivors. The Internet-based platform facilitated home delivery of the psychosocial intervention to a group of cancer survivors for whom attending face-to-face programs could be difficult given their physical limitations and the small number of ovarian cancer survivors at any one treatment site...
January 15, 2018: JMIR Cancer
https://www.readbyqxmd.com/read/29334760/polymorphisms-in-estrogen-synthesis-genes-and-symptom-clusters-during-the-menopausal-transition-and-early-postmenopause-observations-from-the-seattle-midlife-women-s-health-study
#6
Nancy Fugate Woods, Lori A Cray, Ellen Sullivan Mitchell, Fred Farrin, Jerald Herting
During the menopausal transition and early postmenopause, participants in the Seattle Midlife Women's Health Study (SMWHS) experienced one of the three symptom severity clusters identified through latent class analysis: severe hot flashes with moderate sleep, mood, cognitive, and pain symptoms (high-severity hot flash); low-severity hot flashes with moderate levels of all other symptom groups (moderate severity); and low levels of all symptom groups (low severity). In an effort to determine whether gene polymorphisms were associated with these symptom severity classes, we tested associations between gene polymorphisms in the estrogen synthesis pathways (cytochrome P450 19 [CYP 19] and 17 beta hydroxysteroid dehydrogenase [ 17HSDB1]) and the three symptom severity clusters...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29332862/using-relaxation-techniques-to-improve-sleep-during-naps
#7
Eden Debellemaniere, Danielle Gomez-Merino, Mégane Erblang, Rodolphe Dorey, Michel Genot, Edith Perreaut-Pierre, André Pisani, Laurent Rocco, Fabien Sauvet, Damien Léger, Arnaud Rabat, Mounir Chennaoui
Insufficient sleep is a common occurrence in occupational settings (e.g. doctors, drivers, soldiers). The resulting sleep debt can lead to daytime sleepiness, fatigue, mood disorder, and cognitive deficits as well as altered vascular, immune and inflammatory responses. Short daytime naps have been shown to be effective at counteracting negative outcomes related to sleep debt with positive effects on daytime sleepiness and performance after a normal or restricted night of sleep in laboratory settings. However, the environmental settings in the workplace and the emotional state of workers are generally not conducive to beneficial effects...
January 13, 2018: Industrial Health
https://www.readbyqxmd.com/read/29332684/racial-ethnic-sleep-disparities-in-us-school-aged-children-and-adolescents-a-review-of-the-literature
#8
REVIEW
Dana Guglielmo, Julie A Gazmararian, Joon Chung, Ann E Rogers, Lauren Hale
Sleep is essential for optimal health, well-being, and cognitive functioning, and yet nationwide, youth are not obtaining consistent, adequate, or high-quality sleep. In fact, more than two-thirds of US adolescents are sleeping less than 8 hours nightly on school nights. Racial and ethnic minority children and adolescents are at an increased risk of having shorter sleep duration and poorer sleep quality than their white peers. In this review, we critically examined and compared results from 23 studies that have investigated racial/ethnic sleep disparities in American school-aged children and adolescents ages 6-19 years...
February 2018: Sleep Health
https://www.readbyqxmd.com/read/29331872/effect-of-physical-activity-on-cognitive-flexibility-depression-and-rbd-in-healthy-elderly
#9
Stefanie Lerche, Alexandra Gutfreund, Kathrin Brockmann, Markus A Hobert, Isabel Wurster, Ulrike Sünkel, Gerhard W Eschweiler, Florian G Metzger, Walter Maetzler, Daniela Berg
OBJECTIVE: The prevalence of Alzheimer's disease and Parkinson's disease increases with the raising number of elderly, which will be a challenging situation for the healthcare systems and society in the future. There is evidence that there are modifiable risk-factors e.g. physical activity for these diseases. Here, we study the interaction between sports inactivity with prodromal markers for neurodegeneration. PATIENTS AND METHODS: We investigated 667 neurologically healthy individuals cross-sectional and a subgroup longitudinal over six years...
January 9, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29330990/association-of-quality-of-sleep-with-cognitive-decline-among-the-patients-of-chronic-kidney-disease-undergoing-haemodialysis
#10
Usama Bin Zubair, Batool Butt
BACKGROUND: This study was conducted to determine the association between the subjective quality of sleep and cognitive decline among the patients of chronic kidney disease (CKD) undergoing haemodialysis. METHODS: In this cross-sectional study 106 patients of chronic kidney disease (CKD) undergoing haemodialysis at a tertiary care hospital in Rawalpindi, Pakistan were included in the final analysis. Cognitive decline was measured by British Columbia Cognitive Complaints Inventory (BC-CCI)...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330419/parkinson-disease-with-constipation-clinical-features-and-relevant-factors
#11
Qiu-Jin Yu, Shu-Yang Yu, Li-Jun Zuo, Teng-Hong Lian, Yang Hu, Rui-Dan Wang, Ying-Shan Piao, Peng Guo, Li Liu, Zhao Jin, Li-Xia Li, Piu Chan, Sheng-Di Chen, Xiao-Min Wang, Wei Zhang
Constipation is one of the most frequent non-motor symptoms of Parkinson disease (PD) and it may be ignored by PD patients, leading to this problem not to be reported in time. The relationships between constipation and demographic variables, motor symptoms and other non-motor symptoms of PD are still unknown. PD patients were evaluated by diagnostic criteria of functional constipation in Rome III and divided into PD with constipation (PD-C) and PD with no constipation (PD-NC) groups. PD patients were assessed by rating scales of motor symptoms and other non-motor symptoms, activity of daily living and quality of life...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329819/the-effect-of-continuous-positive-airway-pressure-on-spectral-encephalogram-characteristics-in-stroke-patients-with-obstructive-sleep-apnea
#12
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/29329056/subjective-and-objective-sleep-discrepancy-in-symptomatic-bipolar-disorder-compared-to-healthy-controls
#13
Venkatesh Krishnamurthy, Dahlia Mukherjee, Aubrey Reider, Scott Seaman, Gagan Singh, Julio Fernandez-Mendoza, Erika Saunders
BACKGROUND: Bipolar disorder (BD) is associated with sleep misperception. The objective of this study was to investigate the correlation between subjective and objective measures of sleep in persons with symptomatic bipolar disorder (BDS) compared to healthy controls (HC). METHODS: We studied 24 BDS and 30 HC subjects similar in age, race and sex. Subjective sleep was measured with Pittsburgh Sleep Quality Index (PSQI) and objective sleep with 7-days of actigraphy...
January 3, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29329054/relationship-between-sedentary-behavior-and-depression-a-mediation-analysis-of-influential-factors-across-the-lifespan-among-42-469-people-in-low-and-middle-income-countries
#14
Brendon Stubbs, Davy Vancampfort, Joseph Firth, Felipe B Schuch, Mats Hallgren, Lee Smith, Benjamin Gardner, Kai G Kahl, Nicola Veronese, Marco Solmi, André F Carvalho, Ai Koyanagi
BACKGROUND: Sedentary behavior (SB) is associated with diabetes, cardiovascular disease and low mood. There is a paucity of multi-national research investigating SB and depression, particularly among low- and middle-income countries. This study investigated the association between SB and depression, and factors which influence this. METHODS: Cross-sectional data were analyzed from the World Health Organization's Study on Global Ageing and Adult Health. Depression was based on the Composite International Diagnostic Interview...
January 3, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29325492/illness-perception-is-significantly-determined-by-depression-and-anxiety-in-systemic-lupus-erythematosus
#15
K Nowicka-Sauer, A Hajduk, H Kujawska-Danecka, D Banaszkiewicz, Ż Smoleńska, Z Czuszyńska, J Siebert
Objectives Illness perception is a cognitive representation influencing physical and psychological functioning and adherence in patients with rheumatic disease. Studies exploring illness perception in systemic lupus erythematosus (SLE) are still scarce and none of them have investigated factors determining illness perception. We aimed to assess illness perception and to identify psychological, clinical and sociodemographic factors that might influence illness perception in SLE. Methods The study involved 80 patients with SLE (87...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29325450/symptom-science-omics-supports-common-biological-underpinnings-across-symptoms
#16
Maura K McCall, Ansley Grimes Stanfill, Elizabeth Skrovanek, Jessica Renee Pforr, Susan W Wesmiller, Yvette P Conley
For precision health care to be successful, an in-depth understanding of the biological mechanisms for symptom development and severity is essential. Omics-based research approaches facilitate identification of the biological underpinnings of symptoms. We reviewed literature for omics-based approaches and exemplar symptoms (sleep disruption, cognitive impairment, fatigue, gastrointestinal [GI] distress, and pain) to identify genes associated with the symptom or symptoms across disease processes. The review yielded 27 genes associated with more than one symptom...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29325115/fast-sleep-spindle-density-is-associated-with-rs4680-val108-158met-genotype-of-catechol-o-methyltransferase-comt
#17
Claudia Schilling, Lena Gappa, Michael Schredl, Fabian Streit, Jens Treutlein, Josef Frank, Michael Deuschle, Andreas Meyer-Lindenberg, Marcella Rietschel, Stephanie H Witt
Study Objectives: Sleep spindles are a hallmark of NREM stage 2 sleep. Fast sleep spindles correlate with cognitive functioning, and are reduced in schizophrenia. Although spindles are highly genetically determined, distinct genetic mechanisms influencing sleep spindle activity have not been identified so far. Spindles are generated within a thalamo-cortical network. Dopaminergic neurotransmission modulates activity within this network and importantly depends on activity of catechol-O-methyltransferase (COMT)...
January 6, 2018: Sleep
https://www.readbyqxmd.com/read/29323835/recurring-vivid-dreams-in-an-older-hmong-man-with-complex-trauma-experience-and-cognitive-impairment
#18
Wajih Askar, Ariba Khan, Soo Borson, Michael L Malone
INTRODUCTION: Health care workers need to consider the culture and ethnic preferences prevalent in the Hmong community in order to provide optimal care. We describe an older Hmong man to illustrate the challenges faced and competencies needed by primary care. CASE PRESENTATION: An 80-year-old non-English speaking Hmong man with diabetes, nerve sheath tumor, and hypertension presented to the outpatient clinic with his grandson complaining of sleep problems. He had had 2 vivid recurring dreams during the previous few months...
August 2017: WMJ: Official Publication of the State Medical Society of Wisconsin
https://www.readbyqxmd.com/read/29322673/attentional-bias-towards-sleep-related-stimuli-in-insomnia-disorder-a-behavioural-and-erp-study
#19
Ningning Zhou, Chuanwen Zhao, Ting Yang, Sha Du, Meng Yu, Heyong Shen
Many studies have used behavioural experiments to show an attentional bias towards sleep-related stimuli in people with insomnia disorder. A measurement of event-related potential is needed to investigate the cognitive processing mechanism of the attentional process. The present study used the emotional Stroop paradigm and event-related potentials to measure attentional bias towards sleep-negative, sleep-positive and sleep-unrelated neutral words. The study comprised 16 participants with insomnia disorder and 15 participants who were good sleepers...
January 10, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29322089/the-wisconsin-registry-for-alzheimer-s-prevention-a-review-of-findings-and-current-directions
#20
REVIEW
Sterling C Johnson, Rebecca L Koscik, Erin M Jonaitis, Lindsay R Clark, Kimberly D Mueller, Sara E Berman, Barbara B Bendlin, Corinne D Engelman, Ozioma C Okonkwo, Kirk J Hogan, Sanjay Asthana, Cynthia M Carlsson, Bruce P Hermann, Mark A Sager
The Wisconsin Registry for Alzheimer's Prevention is a longitudinal observational cohort study enriched with persons with a parental history (PH) of probable Alzheimer's disease (AD) dementia. Since late 2001, Wisconsin Registry for Alzheimer's Prevention has enrolled 1561 people at a mean baseline age of 54 years. Participants return for a second visit 4 years after baseline, and subsequent visits occur every 2 years. Eighty-one percent (1270) of participants remain active in the study at a current mean age of 64 and 9 years of follow-up...
2018: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
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