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https://www.readbyqxmd.com/read/28538108/moderate-to-vigorous-physical-activity-executive-functions-and-prefrontal-brain-oxygenation-in-children-a-functional-near-infrared-spectroscopy-study
#1
Manuel Mücke, Christian Andrä, Markus Gerber, Uwe Pühse, Sebastian Ludyga
Despite accumulating evidence that regular exercise improves executive functioning, the underlying neurophysiological mechanisms have rarely been investigated. The present study aimed to compare cognitive performance as well as task-specific concentration changes in oxygenated haemoglobin in the prefrontal cortex between children with higher and lower moderate-to-vigorous physical activity (MVPA). Physical activity was measured over 7 consecutive days using actigraphy. Afterwards, participants (N = 50) completed verbal fluency tests (VFTs) and mental arithmetic (MA) for the assessment of cognitive flexibility and working memory capacity...
May 24, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28534237/the-buffet-program-development-of-a-cognitive-behavioral-treatment-for-selective-eating-in-youth-with-autism-spectrum-disorder
#2
REVIEW
Emily S Kuschner, Hannah E Morton, Brenna B Maddox, Ashley de Marchena, Laura Gutermuth Anthony, Judy Reaven
Selective eating (often referred to as "picky" eating) is common in individuals with autism spectrum disorder (ASD) across the lifespan. Behavioral interventions are widely used to treat selective eating; however, most of these programs are time intensive, have not been evaluated for use in outpatient settings, and do not typically include youth beyond early childhood. Despite the functional impact and risk for negative outcomes associated with selective eating, there are no empirically supported treatments available for older children, adolescents, or adults, either with or without ASD...
May 22, 2017: Clinical Child and Family Psychology Review
https://www.readbyqxmd.com/read/28530664/flexible-information-routing-by-transient-synchrony
#3
Agostina Palmigiano, Theo Geisel, Fred Wolf, Demian Battaglia
Perception, cognition and behavior rely on flexible communication between microcircuits in distinct cortical regions. The mechanisms underlying rapid information rerouting between such microcircuits are still unknown. It has been proposed that changing patterns of coherence between local gamma rhythms support flexible information rerouting. The stochastic and transient nature of gamma oscillations in vivo, however, is hard to reconcile with such a function. Here we show that models of cortical circuits near the onset of oscillatory synchrony selectively route input signals despite the short duration of gamma bursts and the irregularity of neuronal firing...
May 22, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28528231/neurocognitive-dysfunction-in-problem-gamblers-with-co-occurring-antisocial-personality-disorder
#4
Austin W Blum, Eric W Leppink, Jon E Grant
OBJECTIVES: Problem gamblers with symptoms of antisocial personality disorder (ASPD) may represent a distinct problem gambling subtype, but the neurocognitive profile of individuals affected by both disorders is poorly characterized. METHOD: Non-treatment-seeking young adults (18-29years) who gambled ≥5 times in the preceding year were recruited from the general community. Problem gamblers (defined as those meeting ≥1 DSM-5 diagnostic criteria for gambling disorder) with a lifetime history of ASPD (N=26) were identified using the Mini International Neuropsychiatric Interview (MINI) and compared with controls (N=266) using questionnaire-based impulsivity scales and objective computerized neuropsychological tasks...
May 12, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28527097/the-flexibility-scale-development-and-preliminary-validation-of-a-cognitive-flexibility-measure-in-children-with-autism-spectrum-disorders
#5
John F Strang, Laura G Anthony, Benjamin E Yerys, Kristina K Hardy, Gregory L Wallace, Anna C Armour, Katerina Dudley, Lauren Kenworthy
Flexibility is a key component of executive function, and is related to everyday functioning and adult outcomes. However, existing informant reports do not densely sample cognitive aspects of flexibility; the Flexibility Scale (FS) was developed to address this gap. This study investigates the validity of the FS in 221 youth with ASD and 57 typically developing children. Exploratory factor analysis indicates a five-factor scale: Routines/rituals, transitions/change, special interests, social flexibility, and generativity...
May 19, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28524365/revision-of-the-competency-standards-for-occupational-therapy-driver-assessors-an-overview-of-the-evidence-for-the-inclusion-of-cognitive-and-perceptual-assessments-within-fitness-to-drive-evaluations
#6
REVIEW
Sally M Fields, Carolyn A Unsworth
BACKGROUND/AIM: Determination of fitness-to-drive after illness or injury is a complex process typically requiring a comprehensive driving assessment, including off-road and on-road assessment components. The competency standards for occupational therapy driver assessors (Victoria, Australia) define the requirements for performance of a comprehensive driving assessment, and we are currently revising these. Assessment of cognitive and perceptual skills forms an important part of the off-road assessment...
May 19, 2017: Australian Occupational Therapy Journal
https://www.readbyqxmd.com/read/28521247/cognitive-performance-of-juvenile-monkeys-after-chronic-fluoxetine-treatment
#7
Mari S Golub, Edward P Hackett, Casey E Hogrefe, Csaba Leranth, John D Elsworth, Robert H Roth
Potential long term effects on brain development are a concern when drugs are used to treat depression and anxiety in childhood. In this study, male juvenile rhesus monkeys (three-four years of age) were dosed with fluoxetine or vehicle (N=16/group) for two years. Histomorphometric examination of cortical dendritic spines conducted after euthanasia at one year postdosing (N=8/group) suggested a trend toward greater dendritic spine synapse density in prefrontal cortex of the fluoxetine-treated monkeys. During dosing, subjects were trained for automated cognitive testing, and evaluated with a test of sustained attention...
May 1, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28516347/uniting-the-pre-health-humanities-with-the-introductory-composition-course
#8
Amy Rubens
Drawing on my experiences at a teaching-focused university, I show how locating the health humanities in first-year or introductory composition courses improves learning and offers an economical, flexible, and far-reaching approach to bringing a health humanities education to all baccalaureate-level learners, regardless of whether they aspire to careers in the health professions. In terms of improving learning, health humanities composition courses support the disciplinary aims of both fields. Accessible, relevant issues in the health humanities, such as interventions in health debates or representations of illness and healthcare settings, nourish the cognitive and social conditions needed to develop college-level writing skills...
May 17, 2017: Journal of Medical Humanities
https://www.readbyqxmd.com/read/28515181/measuring-ability-to-assess-claims-about-treatment-effects-the-development-of-the-claim-evaluation-tools
#9
Astrid Austvoll-Dahlgren, Daniel Semakula, Allen Nsangi, Andrew David Oxman, Iain Chalmers, Sarah Rosenbaum, Øystein Guttersrud
OBJECTIVES: To describe the development of the Claim Evaluation Tools, a set of flexible items to measure people's ability to assess claims about treatment effects. SETTING: Methodologists and members of the community (including children) in Uganda, Rwanda, Kenya, Norway, the UK and Australia. PARTICIPANTS: In the iterative development of the items, we used purposeful sampling of people with training in research methodology, such as teachers of evidence-based medicine, as well as patients and members of the public from low-income and high-income countries...
May 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28511728/birth-weight-interacts-with-a-functional-variant-of-the-oxytocin-receptor-gene-oxtr-to-predict-executive-functioning-in-children
#10
Mark Wade, Heather Prime, Thomas J Hoffmann, Louis A Schmidt, Thomas G O'Connor, Jennifer M Jenkins
Genetic variation in the oxytocin receptor gene (OXTR) is associated with several psychiatric conditions characterized by deficits in executive functioning (EF). A specific OXTR variant, rs2254298, has previously been associated with brain functioning in regions implicated in EF. Moreover, birth weight variation across the entire range is associated with individual differences in cortical structure and function that underlie EF. This is the first study to examine the main and interactive effect between rs2254298 and birth weight on EF in children...
May 17, 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28499738/cognitive-effects-of-subdiaphragmatic-vagal-deafferentation-in-rats
#11
Melanie Klarer, Ulrike Weber-Stadlbauer, Myrtha Arnold, Wolfgang Langhans, Urs Meyer
Vagal afferents are a crucial neuronal component of the gut-brain axis and mediate the information flow from the viscera to the central nervous system. Based on the findings provided by experiments involving vagus nerve stimulation, it has been suggested that vagal afferent signaling may influence various cognitive functions such as recognition memory and cognitive flexibility. Here, we examined this hypothesis using a rat model of subdiaphragmatic vagal deafferentation (SDA), the most complete and selective abdominal vagal deafferentation method existing to date...
May 9, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28495972/multiple-transient-signals-in-human-visual-cortex-associated-with-an-elementary-decision
#12
Thomas Meindertsma, Niels A Kloosterman, Guido Nolte, Andreas K Engel, Tobias H Donner
The cerebral cortex continuously undergoes changes in its state, which manifest in transient modulations of the cortical power spectrum. Cortical state changes occur also at full wakefulness, during rapid cognitive acts, such as perceptual decisions. Previous studies found a global modulation of beta-band (12-30 Hz) activity in human and monkey visual cortex during an elementary visual decision: reporting the appearance or disappearance of salient visual targets surrounded by a distractor. The previous studies did neither disentangle the motor action associated with behavioral report, nor other secondary processes, such as arousal, from perceptual decision processing per se...
May 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28495273/the-key-of-the-maze-the-role-of-mental-imagery-and-cognitive-flexibility-in-navigational-planning
#13
Alessia Bocchi, Marika Carrieri, Stefania Lancia, Valentina Quaresima, Laura Piccardi
Spatial navigation planning ability relies on both mental imagery and cognitive flexibility. Considering the importance of planning ability in everyday life, several neuropsychological tests are used in clinical practice for its assessment, although some of these are not aimed at assessing the strategies of navigational planning. The Porteus Maze Test (PMT) and the Key Search Task (KST) require to plan a strategy in a maze and in an imagined space, respectively. To the best of our knowledge, although these two tests share some features, the relationship between them has never been explored...
May 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28493728/internal-and-community-recourses-contribution-to-level-of-posttraumatic-symptoms-the-case-of-tourists-after-the-earthquake-in-nepal-2015
#14
Haya Itzhaky, Shlomit Weiss-Dagan, Orit Taubman-Ben-Ari
OBJECTIVE: The current study focused on tourists who were caught in the middle of Nepal's, 2015 earthquake, and survived. We examined the contribution of internal (coping flexibility and emotional regulation) and community resources (sense of belonging to the community) to tourist's level of post traumatic stress disorder symptoms. METHOD: A cross-sectional sample survey was conducted to collect data from 145 tourists between 2 week to 3 months after the earthquake...
May 11, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/28492999/physical-activity-improves-cognition-possible-explanations
#15
REVIEW
Blanka Koščak Tivadar
Good cognitive abilities (CA) enable autonomy, improve social inclusion and act preventively. Regular physical activity (PA) reduces the risk of developing Alzheimer's disease (AD) and, at the same time, it reduces the decline of CA and stimulates neurogenesis. So PA in connection with cognitive training, nutrition and social interaction has a positive effect on general CA and the central nervous system, the central executor, memory and attention, and reduces the likelihood of developing dementia. Our objective was to examine which sort and intensity of PA is preferred...
May 10, 2017: Biogerontology
https://www.readbyqxmd.com/read/28491495/dorsolateral-prefrontal-cortex-contributes-to-the-impaired-behavioral-adaptation-in-alcohol-dependence
#16
Sinem Balta Beylergil, Anne Beck, Lorenz Deserno, Robert C Lorenz, Michael A Rapp, Florian Schlagenhauf, Andreas Heinz, Klaus Obermayer
Substance-dependent individuals often lack the ability to adjust decisions flexibly in response to the changes in reward contingencies. Prediction errors (PEs) are thought to mediate flexible decision-making by updating the reward values associated with available actions. In this study, we explored whether the neurobiological correlates of PEs are altered in alcohol dependence. Behavioral, and functional magnetic resonance imaging (fMRI) data were simultaneously acquired from 34 abstinent alcohol-dependent patients (ADP) and 26 healthy controls (HC) during a probabilistic reward-guided decision-making task with dynamically changing reinforcement contingencies...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28488130/fish-consumption-intake-of-fats-and-cognitive-decline-at-middle-and-older-age-the-doetinchem-cohort-study
#17
Astrid C J Nooyens, Boukje M van Gelder, H Bas Bueno-de-Mesquita, Martin P J van Boxtel, W M Monique Verschuren
PURPOSE: To get insight in the impact of fish and fat intake in the prevention of accelerated cognitive decline with ageing, we tested associations between fish and different fat intakes and 5-year change in cognitive functions. METHODS: In 2612 men and women of the Doetinchem Cohort Study, aged 43-70 years at baseline, dietary intake (including fish consumption) and cognitive function were assessed at baseline and at 5-year follow-up. Average fish consumption (frequency) and intakes (as energy percentages) of total fat, saturated, mono unsaturated, and polyunsaturated fatty acids (PUFA), linoleic, docosahexaenoic, eicosapentaenoic, and a-linolenic acid (ALA), and cholesterol were averaged over baseline and follow-up...
May 9, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28487665/smartphones-and-cognition-a-review-of-research-exploring-the-links-between-mobile-technology-habits-and-cognitive-functioning
#18
REVIEW
Henry H Wilmer, Lauren E Sherman, Jason M Chein
While smartphones and related mobile technologies are recognized as flexible and powerful tools that, when used prudently, can augment human cognition, there is also a growing perception that habitual involvement with these devices may have a negative and lasting impact on users' ability to think, remember, pay attention, and regulate emotion. The present review considers an intensifying, though still limited, area of research exploring the potential cognitive impacts of smartphone-related habits, and seeks to determine in which domains of functioning there is accruing evidence of a significant relationship between smartphone technology and cognitive performance, and in which domains the scientific literature is not yet mature enough to endorse any firm conclusions...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28487471/using-dti-to-assess-white-matter-microstructure-in-cerebral-small-vessel-disease-svd-in-multi-centre-studies
#19
Iain David Croall, Valerie Lohner, Barry Moynihan, Usman Khan, Ahamad Hassan, John T O'Brien, Robin G Morris, Daniel J Tozer, Victoria C Cambridge, Kirsty Harkness, David Werring, Andrew M Blamire, Gary A Ford, Thomas R Barrick, Hugh S Markus
Diffusion tensor imaging (DTI) metrics such as Fractional Anisotropy (FA) and Mean Diffusivity (MD) have been proposed as clinical trial markers of cerebral small vessel disease due to their associations with outcomes such as cognition. However, studies investigating this have been predominantly single-centre. As clinical trials are likely to be multi-site, further studies are required to determine whether associations with cognition of similar strength can be detected in a multi-centre setting. 109 patients (mean age=68) with symptomatic lacunar infarction and confluent white matter hyperintensities (WMH) on MRI was recruited across 6 sites as part of the PRESERVE DTI sub-study...
May 9, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28486677/the-effects-of-age-and-hearing-loss-on-dual-task-balance-and-listening
#20
Halina Bruce, Daniel Aponte, Nancy St-Onge, Natalie Phillips, Jean-Pierre Gagné, Karen Z H Li
Objectives: Among older adults (OA), hearing loss is associated with an increased risk for falls. The aim of the present study was to experimentally investigate the cognitive compensation hypothesis, wherein decreased auditory and motor functioning are compensated by the recruitment of cognitive resources. Method: Twenty-nine younger adults (YA), 26 OA, and 32 OA with age-related hearing loss (ARHL) completed a dual-task paradigm consisting of cognitive and balance recovery tasks performed singly and concurrently...
May 9, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
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