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https://www.readbyqxmd.com/read/28077708/dynamic-shifts-in-large-scale-brain-network-balance-as-a-function-of-arousal
#1
Christina B Young, Gal Raz, Daphne Everaerd, Christian F Beckmann, Indira Tendolkar, Talma Hendler, Guillén Fernández, Erno J Hermans
: The ability to temporarily prioritize rapid and vigilant reactions over slower higher-order cognitive functions is essential for adaptive responding to threat. This reprioritization is believed to reflect shifts in resource allocation between large-scale brain networks that support these cognitive functions, including the salience and executive control networks. However, how changes in communication within and between such networks dynamically unfold as a function of threat-related arousal remains unknown...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28067190/leisure-activities-education-and-cognitive-impairment-in-chinese-older-adults-a-population-based-longitudinal-study
#2
Xinyi Zhu, Chengxuan Qiu, Yi Zeng, Juan Li
BACKGROUND: We examine the association between leisure-time activities and the risk of developing cognitive impairment among Chinese older people, and further investigate whether the association varies by educational level. METHODS: This follow-up study included 6,586 participants (aged 79.5 ± 9.8 years, range 65-105 years, 51.7% female) of the Chinese Longitudinal Healthy Longevity Survey who were aged ≥65 years and were free of cognitive impairment in 2002...
January 9, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28054159/brain-areas-responsible-for-vigilance-an-eeg-source-imaging-study
#3
Jung-Hoon Kim, Do-Won Kim, Chang-Hwan Im
Vigilance, sometimes referred to as sustained attention, is an important type of human attention as it is closely associated with cognitive activities required in various daily-life situations. Although many researchers have investigated which brain areas control the maintenance of vigilance, findings have been inconsistent. We hypothesized that this inconsistency might be due to the use of different experimental paradigms in the various studies. We found that most of the previous studies used paradigms that included specific cognitive tasks requiring a high cognitive load, which could complicate identification of brain areas associated only with vigilance...
January 4, 2017: Brain Topography
https://www.readbyqxmd.com/read/28044281/the-effects-of-mental-fatigue-on-physical-performance-a-systematic-review
#4
REVIEW
Jeroen Van Cutsem, Samuele Marcora, Kevin De Pauw, Stephen Bailey, Romain Meeusen, Bart Roelands
BACKGROUND: Mental fatigue is a psychobiological state caused by prolonged periods of demanding cognitive activity. It has recently been suggested that mental fatigue can affect physical performance. OBJECTIVE: Our objective was to evaluate the literature on impairment of physical performance due to mental fatigue and to create an overview of the potential factors underlying this effect. METHODS: Two electronic databases, PubMed and Web of Science (until 28 April 2016), were searched for studies designed to test whether mental fatigue influenced performance of a physical task or influenced physiological and/or perceptual responses during the physical task...
January 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28041692/neurofeedback-one-of-today-s-techniques-in-psychiatry
#5
M Arns, J-M Batail, S Bioulac, M Congedo, C Daudet, D Drapier, T Fovet, R Jardri, M Le-Van-Quyen, F Lotte, D Mehler, J-A Micoulaud-Franchi, D Purper-Ouakil, F Vialatte
OBJECTIVES: Neurofeedback is a technique that aims to teach a subject to regulate a brain parameter measured by a technical interface to modulate his/her related brain and cognitive activities. However, the use of neurofeedback as a therapeutic tool for psychiatric disorders remains controversial. The aim of this review is to summarize and to comment the level of evidence of electroencephalogram (EEG) neurofeedback and real-time functional magnetic resonance imaging (fMRI) neurofeedback for therapeutic application in psychiatry...
December 29, 2016: L'Encéphale
https://www.readbyqxmd.com/read/28025282/memory-resilience-to-alzheimer-s-genetic-risk-sex-effects-in-predictor-profiles
#6
Kirstie L McDermott, G Peggy McFall, Shea J Andrews, Kaarin J Anstey, Roger A Dixon
OBJECTIVES: Apolipoprotein E (APOE) ɛ4 and Clusterin (CLU) C alleles are risk factors for Alzheimer's disease (AD) and episodic memory (EM) decline. Memory resilience occurs when genetically at-risk adults perform at high and sustained levels. We investigated whether (a) memory resilience to AD genetic risk is predicted by biological and other risk markers and (b) the prediction profiles vary by sex and AD risk variant. METHOD: Using a longitudinal sample of nondemented adults (n = 642, aged 53-95) we focused on memory resilience (over 9 years) to 2 AD risk variants (APOE, CLU)...
December 26, 2016: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28011290/the-effect-of-a-specialized-content-knowledge-workshop-on-teaching-and-learning-basic-life-support-in-elementary-school-a-cluster-randomized-controlled-trial
#7
Peter Iserbyt, Lieselot Theys, Phillip Ward, Nathalie Charlier
BACKGROUND: Research investigating the effect of specialised content knowledge (SCK) on teaching and learning Basic Life Support (BLS) is lacking. PURPOSE: To investigate the effect of a specialised content knowledge workshop on teaching behaviour, lesson context and student learning of BLS. Specialised content knowledge comprises knowledge of content progressions, skill analysis, and how to correct common errors. METHODS: A cluster randomized controlled trial...
December 20, 2016: Resuscitation
https://www.readbyqxmd.com/read/27996319/hypoglycemia-in-older-adults-with-type-1-diabetes
#8
Stephanie N DuBose, Ruth S Weinstock, Roy W Beck, Anne L Peters, Grazia Aleppo, Richard M Bergenstal, Henry Rodriguez, Joseph F Largay, Elaine M Massaro, Irl B Hirsch
BACKGROUND: Hypoglycemia is a major concern in older adults with type 1 diabetes (T1D) and there is limited knowledge in this population. We examined data from 199 adults, ≥60 years of age, who participated in a T1D Exchange study assessing factors associated with severe hypoglycemia (SH) in older adults with T1D: 100 with SH in the prior year and 99 with no SH in prior 3 years (mean age 68; mean diabetes duration 40 years; 47% female; 92% non-Hispanic white). Hypoglycemia was assessed with up to 14 days of blinded continuous glucose monitoring (CGM)...
December 2016: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/27988874/cognitive-functioning-and-heat-strain-performance-responses-and-protective-strategies
#9
REVIEW
Cyril Schmit, Christophe Hausswirth, Yann Le Meur, Rob Duffield
Despite the predominance of research on physical performance in the heat, many activities require high cognitive functioning for optimal performance (i.e. decision making) and/or health purposes (i.e. injury risk). Prolonged periods of demanding cognitive activity or exercise-induced fatigue will incur altered cognitive functioning. The addition of hot environmental conditions will exacerbate poor cognitive functioning and negatively affect performance outcomes. The present paper attempts to extract consistent themes from the heat-cognition literature to explore cognitive performance as a function of the level of heat stress encountered...
December 17, 2016: Sports Medicine
https://www.readbyqxmd.com/read/27986794/characteristics-of-activities-for-persons-with-dementia-at-the-mild-moderate-and-severe-stages
#10
Natalie G Regier, Nancy A Hodgson, Laura N Gitlin
PURPOSE: To understand activity in dementia care, we examine relationships of disease stage with types and characteristics of meaningful activities (cueing needs, help with initiation, and recommended engagement time) provided in a home-based intervention trial designed to reduce behavioral symptoms. DESIGN AND METHODS: Data involved 158 activity prescriptions or written documents detailing prescribed activities, cueing needs, and engagement goals designed by occupational therapists for 56 families...
December 16, 2016: Gerontologist
https://www.readbyqxmd.com/read/27965854/the-effect-of-an-enriched-environment-on-activity-levels-in-people-with-stroke-in-an-acute-stroke-unit-protocol-for-a-before-after-pilot-study
#11
Ingrid C M Rosbergen, Rohan S Grimley, Kathryn S Hayward, Katrina C Walker, Donna Rowley, Alana M Campbell, Suzanne McGufficke, Samantha T Robertson, Janelle Trinder, Heidi Janssen, Sandra G Brauer
BACKGROUND: Clinical practice guidelines advocate engaging stroke survivors in as much activity as possible early after stroke. One approach found to increase activity levels during inpatient rehabilitation incorporated an enriched environment (EE), whereby physical, cognitive, and social activity was enhanced. The effect of an EE in an acute stroke unit (ASU) has yet not been explored. METHODS/DESIGN: We will perform a prospective non-randomized before-after intervention study...
2016: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/27929339/cognitive-activity-mediates-the-association-between-social-activity-and-cognitive-performance-a-longitudinal-study
#12
Cassandra L Brown, Annie Robitaille, Elizabeth M Zelinski, Roger A Dixon, Scott M Hofer, Andrea M Piccinin
Social activity is 1 aspect of an active lifestyle and some evidence indicates it is related to preserved cognitive function in older adulthood. However, the potential mechanisms underlying this association remain unclear. We investigate 4 potential mediational pathways through which social activity may relate to cognitive performance. A multilevel structural equation modeling approach to mediation was used to investigate whether cognitive activity, physical activity, depressive symptoms, and vascular health conditions mediate the association between social activity and cognitive function in older adults...
December 2016: Psychology and Aging
https://www.readbyqxmd.com/read/27909095/dynamic-shifts-in-large-scale-brain-network-balance-as-a-function-of-arousal
#13
Christina B Young, Gal Raz, Daphne Everaerd, Christian F Beckmann, Indira Tendolkar, Talma Hendler, Guillén Fernández, Erno J Hermans
: The ability to temporarily prioritize rapid and vigilant reactions over slower higher-order cognitive functions is essential for adaptive responding to threat. This reprioritization is believed to reflect shifts in resource allocation between large-scale brain networks that support these cognitive functions, including the salience and executive control networks. How changes in communication within and between such networks dynamically unfold as a function of threat-related arousal, however, remains unknown...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27888449/salvia-sage-a-review-of-its-potential-cognitive-enhancing-and-protective-effects
#14
REVIEW
Adrian L Lopresti
Genus Salvia, commonly known as sage, is the largest genus in the Lamiaceae family. It comprises many species traditionally used as brain-enhancing tonics. In vitro and animal studies have confirmed that several Salvia species contain a large array of active compounds that may enhance cognitive activity and protect against neurodegenerative disease. In this review, the active constituents in plants belonging to the genus Salvia are summarised, and their influence on pharmacodynamics pertinent to cognitive activity are detailed...
November 25, 2016: Drugs in R&D
https://www.readbyqxmd.com/read/27887597/technology-enhanced-multi-domain-at-home-continuum-of-care-program-with-respect-to-usual-care-for-people-with-cognitive-impairment-the-ability-telerehabilitation-study-protocol-for-a-randomized-controlled-trial
#15
O Realdon, F Rossetto, M Nalin, I Baroni, M Cabinio, R Fioravanti, F L Saibene, M Alberoni, F Mantovani, M Romano, R Nemni, F Baglio
BACKGROUND: According to the World Alzheimer Report (Prince, The Global Impact of Dementia: an Analysis of Prevalence, Incidence, Cost and Trends, 2015), 46.8 million people worldwide are nowadays living with dementia. And this number is estimated to approximate 131.5 million by 2050, with an increasing burden on society and families. The lack of medical treatments able to stop or slow down the course of the disease has moved the focus of interest toward the nonpharmacological approach and psychosocial therapies for people with/at risk of dementia, as in the Mild Cognitive Impairment (MCI) condition...
November 25, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27878815/interventions-to-reduce-cognitive-impairments-following-critical-illness-a-topical-systematic-review
#16
REVIEW
H K Nedergaard, H I Jensen, P Toft
BACKGROUND: Critical illness is associated with cognitive impairments. Effective treatment or prevention has not been established. The aim of this review was to create a systematic summary of the current evidence concerning clinical interventions during intensive care admission to reduce cognitive impairments after discharge. METHODS: Medline, Embase, Cochrane Central, PsycInfo and Cinahl were searched. Inclusion criteria were studies assessing the effect of interventions during intensive care admission on cognitive function in adult patients...
November 22, 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27867415/prior-acute-mental-exertion-in-exercise-and-sport
#17
REVIEW
Fernando Lopes E Silva-Júnior, Patrick Emanuel, Jordan Sousa, Matheus Silva, Silmar Teixeira, Flávio Pires, Sérgio Machado, Oscar Arias-Carrion
INTRODUCTION: Mental exertion is a psychophysiological state caused by sustained and prolonged cognitive activity. The understanding of the possible effects of acute mental exertion on physical performance, and their physiological and psychological responses are of great importance for the performance of different occupations, such as military, construction workers, athletes (professional or recreational) or simply practicing regular exercise, since these occupations often combine physical and mental tasks while performing their activities...
2016: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/27852513/premorbid-exercise-engagement-and-motor-reserve-in-parkinson-s-disease
#18
Mun K Sunwoo, Ji E Lee, Jin Y Hong, Byung S Ye, Hye S Lee, Jungsu S Oh, Jae S Kim, Phil H Lee, Young H Sohn
BACKGROUND: Life-long experiences of cognitive activity could enhance cognitive reserve, which may lead individuals to show less cognitive deficits in Alzheimer's disease, despite similar pathological changes. We performed this study to test whether premorbid physical activity may enhance motor reserve in Parkinson's disease (PD) (i.e., less motor deficits despite similar degrees of dopamine depletion). METHODS: We assessed engagement in premorbid leisure-time exercise among 102 drug naive PD patients who had been initially diagnosed at our hospital by dopamine transporter scanning...
January 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27847328/methodological-framework-for-evaluating-clinical-processes-a-cognitive-informatics-perspective
#19
Thomas G Kannampallil, Joanna Abraham, Vimla L Patel
We propose a methodological framework for evaluating clinical cognitive activities in complex real-world environments that provides a guiding framework for characterizing the patterns of activities. This approach, which we refer to as a process-based approach, is particularly relevant to cognitive informatics (CI) research-an interdisciplinary domain utilizing cognitive approaches in the study of computing systems and applications-as it provides new ways for understanding human information processing, interactions, and behaviors...
December 2016: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/27835621/interpreting-the-influence-of-race-and-cognitive-activity-on-neurocognition-in-adults-aging-with-hiv
#20
David E Vance
No abstract text is available yet for this article.
January 28, 2017: AIDS
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