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Cognitive impairment in children

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https://www.readbyqxmd.com/read/28714048/avoidant-restrictive-food-intake-disorder-a-three-dimensional-model-of-neurobiology-with-implications-for-etiology-and-treatment
#1
REVIEW
Jennifer J Thomas, Elizabeth A Lawson, Nadia Micali, Madhusmita Misra, Thilo Deckersbach, Kamryn T Eddy
PURPOSE OF REVIEW: DSM-5 defined avoidant/restrictive food intake disorder (ARFID) as a failure to meet nutritional needs leading to low weight, nutritional deficiency, dependence on supplemental feedings, and/or psychosocial impairment. We summarize what is known about ARFID and introduce a three-dimensional model to inform research. RECENT FINDINGS: Because ARFID prevalence, risk factors, and maintaining mechanisms are not known, prevailing treatment approaches are based on clinical experience rather than data...
August 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28713461/the-effects-of-maximal-intensity-exercise-on-cognitive-performance-in-children
#2
Roy David Samuel, Ofir Zavdy, Miriam Levav, Ronen Reuveny, Uriel Katz, Gal Dubnov-Raz
High intensity physical exercise has previously been found to lead to a decline in cognitive performance of adults. The aim of this study was to determine the effects of maximal intensity exercise on cognitive performance of children. Using a repeated-measures design, 20 children and adolescents aged 8-17 years completed a battery of tests measuring memory and attention. Forward and Backward Digit Span tests, the Rey Auditory-Verbal Learning Test (RAVLT) and the Digit Symbol Substitution Test (DSST) were performed at baseline, immediately after, and one hour after a maximal cardiopulmonary exercise test...
June 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28712363/overlapping-and-disease-specific-trait-response-and-reflection-impulsivity-in-adolescents-with-first-episode-schizophrenia-spectrum-disorders-or-attention-deficit-hyperactivity-disorder
#3
J R M Jepsen, J Rydkjaer, B Fagerlund, A K Pagsberg, R Av F Jespersen, B Y Glenthøj, B Oranje
BACKGROUND: Schizophrenia and attention-deficit/hyperactivity disorder (ADHD) are developmental disorders with shared clinical characteristics such as cognitive impairments and impulsivity. Impulsivity is a core feature of ADHD and an important factor in aggression, violence, and substance use in schizophrenia. Based on the hypothesis that schizophrenia and ADHD represent a continuum of neurodevelopmental impairments, the aim was to identify overlapping and disease specific forms of impulsivity...
July 17, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28712060/abnormal-social-behavior-in-mice-with-tyrosinemia-type-i-is-associated-with-an-increase-of-myelin-in-the-cerebral-cortex
#4
Marissa E Moore, Ashton E Koenig, Megan A Hillgartner, Christopher C Otap, Elizabeth Barnby, Gordon G MacGregor
Hereditary tyrosinemia type I (HT1) is caused by mutations in the fumarylacetoacetate hydrolase (FAH) gene, the template for the final enzyme in the tyrosine catabolism pathway. If left untreated this deficiency of functional FAH leads to a buildup of toxic metabolites that can cause liver disease, kidney dysfunction and high mortality. The current treatment with the drug NTBC prevents the production of these metabolites and has consequently increased the survival rate in HT1 children. As a result of this increased survival, long term complications of HT1 are now being observed, including slower learning, impaired cognition and altered social behavior...
July 15, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28711986/single-nucleotide-polymorphisms-associated-with-reading-ability-show-connection-to-socio-economic-outcomes
#5
Michelle Luciano, Saskia P Hagenaars, Simon R Cox, William David Hill, Gail Davies, Sarah E Harris, Ian J Deary, David M Evans, Nicholas G Martin, Margaret J Wright, Timothy C Bates
Impairments in reading and in language have negative consequences on life outcomes, but it is not known to what extent genetic effects influence this association. We constructed polygenic scores for difficulties with language and learning to read from genome-wide data in ~6,600 children, adolescents and young adults, and tested their association with health, socioeconomic outcomes and brain structure measures collected in adults (maximal N = 111,749). Polygenic risk of reading difficulties was associated with reduced income, educational attainment, self-rated health and verbal-numerical reasoning (p < 0...
July 15, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/28710940/procedural-learning-in-tourette-syndrome-adhd-and-comorbid-tourette-adhd-evidence-from-a-probabilistic-sequence-learning-task
#6
Ádám Takács, Yuval Shilon, Karolina Janacsek, Andrea Kóbor, Antoine Tremblay, Dezső Németh, Michael T Ullman
Procedural memory, which is rooted in the basal ganglia, plays an important role in the implicit learning of motor and cognitive skills. Few studies have examined procedural learning in either Tourette syndrome (TS) or Attention Deficit Hyperactivity Disorder (ADHD), despite basal ganglia abnormalities in both of these neurodevelopmental disorders. We aimed to assess procedural learning in children with TS (n=13), ADHD (n=22), and comorbid TS-ADHD (n=20), as well as in typically developing children (n=21). Procedural learning was measured with a well-studied implicit probabilistic sequence learning task, the alternating serial reaction time task...
July 12, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28710800/dissociation-of-spatial-memory-systems-in-williams-syndrome
#7
Mathilde Bostelmann, Emilie Fragnière, Floriana Costanzo, Silvia Di Vara, Deny Menghini, Stefano Vicari, Pierre Lavenex, Pamela Banta Lavenex
Williams syndrome (WS), a genetic deletion syndrome, is characterized by severe visuospatial deficits affecting performance on both tabletop spatial tasks and on tasks which assess orientation and navigation. Nevertheless, previous studies of WS spatial capacities have ignored the fact that two different spatial memory systems are believed to contribute parallel spatial representations supporting navigation. The place learning system depends on the hippocampal formation and creates flexible relational representations of the environment, also known as cognitive maps...
July 15, 2017: Hippocampus
https://www.readbyqxmd.com/read/28709631/neurodevelopmental-profiles-of-children-with-congenital-heart-disease-at-school-age
#8
Nadja Naef, Rabia Liamlahi, Ingrid Beck, Vera Bernet, Hitendu Dave, Walter Knirsch, Beatrice Latal
OBJECTIVES: To assess 6-year neurodevelopmental outcomes in a current cohort of children with congenital heart disease (CHD) who underwent cardiopulmonary bypass surgery (CPB), and to determine risk factors for adverse outcomes. STUDY DESIGN: Outcomes were examined in 233 prospectively enrolled children with CHD (including 64 with a recognized genetic disorder) who underwent CPB between 2004 and 2009. Follow-up assessment included standardized neurologic, motor, and cognitive tests...
July 11, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28707360/reciprocity-in-autistic-and-typically-developing-children-and-adolescents-with-and-without-mild-intellectual-disabilities
#9
T Backer van Ommeren, H M Koot, S Begeer
The assessment of autism in individuals with mild intellectual disabilities (MID) is complicated because of the overlap between autistic traits and intellectual limitations. Impaired social emotional reciprocity is a core diagnostic criterion for autism. However, it is unknown whether reciprocal behaviour differs between MID individuals with or without an autism spectrum disorder (ASD). This study explored differences in reciprocal behaviour of 35 children and adolescents with MID (intelligence quotient 50-85): 15 with ASD (ASD-MID) and 20 with typical development (TD-MID) using the Interactive Drawing Test (IDT)...
August 2017: Journal of Intellectual Disability Research: JIDR
https://www.readbyqxmd.com/read/28704379/fractionating-nonword-repetition-the-contributions-of-short-term-memory-and-oromotor-praxis-are-different
#10
Saloni Krishnan, Katherine J Alcock, Daniel Carey, Lina Bergström, Annette Karmiloff-Smith, Frederic Dick
The ability to reproduce novel words is a sensitive marker of language impairment across a variety of developmental disorders. Nonword repetition tasks are thought to reflect phonological short-term memory skills. Yet, when children hear and then utter a word for the first time, they must transform a novel speech signal into a series of coordinated, precisely timed oral movements. Little is known about how children's oromotor speed, planning and co-ordination abilities might influence their ability to repeat novel nonwords, beyond the influence of higher-level cognitive and linguistic skills...
2017: PloS One
https://www.readbyqxmd.com/read/28702509/loss-of-function-variants-of-scn8a-in-intellectual-disability-without-seizures
#11
Jacy L Wagnon, Bryan S Barker, Matteo Ottolini, Young Park, Alicia Volkheimer, Purnima Valdez, Marielle E M Swinkels, Manoj K Patel, Miriam H Meisler
OBJECTIVE: To determine the functional effect of SCN8A missense mutations in 2 children with intellectual disability and developmental delay but no seizures. METHODS: Genomic DNA was analyzed by next-generation sequencing. SCN8A variants were introduced into the Nav1.6 complementary DNA by site-directed mutagenesis. Channel activity was measured electrophysiologically in transfected ND7/23 cells. The stability of the mutant channels was assessed by Western blot...
August 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28700096/peak-alpha-frequency-is-a-neural-marker-of-cognitive-function-across-the-autism-spectrum
#12
Abigail Dickinson, Charlotte DiStefano, Damla Senturk, Shafali Spurling Jeste
Cognitive function varies substantially and serves as a key predictor of outcome and response to intervention in autism spectrum disorder (ASD), yet we know little about the neurobiological mechanisms that underlie cognitive function in children with ASD. The dynamics of neuronal oscillations in the alpha range (6-12 Hz) are associated with cognition in typical development. Peak alpha frequency is also highly sensitive to developmental changes in neural networks which underlie cognitive function, and therefore it holds promise as a developmentally-sensitive neural marker of cognitive function in ASD...
July 12, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28698326/miyoga-a-randomised-controlled-trial-of-a-mindfulness-movement-programme-based-on-hatha-yoga-principles-for-children-with-cerebral-palsy-a-study-protocol
#13
Catherine Mak, Koa Whittingham, Ross Cunnington, Roslyn N Boyd
INTRODUCTION: Cerebral palsy (CP) is the most common childhood physical disability, with life-long impacts for 1.77 in 1000 children. Although CP is primarily a physical disability, children with CP have an increased risk of experiencing cognitive difficulties, particularly attention and executive function deficits. Impairment in cognitive abilities can lead to subsequent impairment in independent functioning, education, employment and interpersonal relationships. This paper reports the protocol of a randomised controlled trial of a novel family-centred lifestyle intervention based on mindfulness and hatha yoga principles (MiYoga)...
July 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28696831/preliminary-testing-by-adults-of-a-haptics-assisted-robot-platform-designed-for-children-with-physical-impairments-to-access-play
#14
Isao Sakamaki, Kim Adams, Maria Fernanda Gomez Medina, Javier Leonardo Castellanos Cruz, Nooshin Jafari, Mahdi Tavakoli, Heidi Janz
Development of children's cognitive and perceptual skills depends heavily on object exploration and experience in their physical world. For children who have severe physical impairments, one of the biggest concerns is the loss of opportunities for meaningful play with objects, including physical contact and manipulation. Assistive robots can enable children to perform object manipulation through the control of simple interfaces. Touch sensations conveyed through haptic interfaces in the form of force reflection or force assistance can help a child to sense the environment and to control a robot...
July 11, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28694011/the-relationship-between-salivary-c-reactive-protein-and-cognitive-function-in-children-aged-11-14years-does-psychopathology-have-a-moderating-effect
#15
Alexis E Cullen, Ben M Tappin, Patricia A Zunszain, Hannah Dickson, Ruth E Roberts, Naghmeh Nikkheslat, Mizan Khondoker, Carmine M Pariante, Helen L Fisher, Kristin R Laurens
Elevated C-reactive protein (CRP), a non-specific biomarker of systemic bodily inflammation, has been associated with more pronounced cognitive impairments in adults with psychiatric disorders, particularly in the domains of memory and executive function. Whether this association is present in early life (i.e., the time at which the cognitive impairments that characterise these disorders become evident), and is specific to those with emerging psychiatric disorders, has yet to be investigated. To this end, we examined the association between salivary CRP and cognitive function in children aged 11-14years and explored the moderating effect of psychopathology...
July 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28693861/supplementation-with-zinc-in-rats-enhances-memory-and-reverses-an-age-dependent-increase-in-plasma-copper
#16
Leslie A Sandusky-Beltran, Bryce L Manchester, Ewan C McNay
Zinc and copper are essential trace elements. Dyshomeostasis in these two metals has been observed in Alzheimer's disease, which causes profound cognitive impairment. Insulin therapy has been shown to enhance cognitive performance; however, recent data suggest that this effect may be at least in part due to the inclusion of zinc in the insulin formulation used. Zinc plays a key role in regulation of neuronal glutamate signaling, suggesting a possible link between zinc and memory processes. Consistent with this, zinc deficiency causes cognitive impairments in children...
July 8, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28691604/parent-psychopathology-and-neurocognitive-functioning-in-children-with-adhd
#17
Sharifah Shameem Agha, Stanley Zammit, Anita Thapar, Kate Langley
OBJECTIVE: The objective of this study was to examine the association between parent mental health (ADHD and depression) and offspring performance on neurocognitive tasks in children with ADHD. METHOD: The clinical sample consisted of 570 children (85% males, mean age: 10.77 years) with ADHD who completed neurocognitive tasks measuring working memory, attention set-shifting, and motivational deficits. Questionnaire measures were used to assess ADHD and depression symptom presence in parents...
July 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28691167/exploring-the-link-between-visual-perception-visual-motor-integration-and-reading-in-normal-developing-and-impaired-children-using-dtvp-2
#18
Stéphanie Bellocchi, Mathilde Muneaux, Andréa Huau, Yohana Lévêque, Marianne Jover, Stéphanie Ducrot
Reading is known to be primarily a linguistic task. However, to successfully decode written words, children also need to develop good visual-perception skills. Furthermore, motor skills are implicated in letter recognition and reading acquisition. Three studies have been designed to determine the link between reading, visual perception, and visual-motor integration using the Developmental Test of Visual Perception version 2 (DTVP-2). Study 1 tests how visual perception and visual-motor integration in kindergarten predict reading outcomes in Grade 1, in typical developing children...
July 10, 2017: Dyslexia: the Journal of the British Dyslexia Association
https://www.readbyqxmd.com/read/28690570/social-cognition-in-children-with-high-functioning-autism-spectrum-disorder-and-attention-deficit-hyperactivity-disorder-associations-with-executive-functions
#19
Ana Miranda, Carmen Berenguer, Belén Roselló, Inmaculada Baixauli, Carla Colomer
Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) are neurodevelopmental disorders characterized by social impairments. The first objective of this study was to analyze social cognition deficits of children with ADHD, high-functioning ASD (HFASD), and typical development (TD) in their performance on explicit and applied measures of theory of mind (ToM). The second objective was to investigate the relationships between executive functions and social cognition in HFASD and ADHD...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28689118/prenatal-and-postnatal-exposure-to-no2-and-child-attentional-function-at-4-5years-of-age
#20
Alexis Sentís, Jordi Sunyer, Albert Dalmau-Bueno, Ainara Andiarena, Ferran Ballester, Marta Cirach, Marisa Estarlich, Ana Fernández-Somoano, Jesús Ibarluzea, Carmen Íñiguez, Aitana Lertxundi, Adonina Tardón, Mark Nieuwenhuijsen, Martine Vrijheid, Mònica Guxens
BACKGROUND: Prenatal and postnatal exposure to air pollution has been linked to cognitive impairment in children, but very few studies have assessed its association with attentional function. OBJECTIVES: To evaluate the association between prenatal and postnatal exposure to nitrogen dioxide (NO2) and attentional function in children at 4-5years of age. METHODS: We used data from four regions of the Spanish INMA-Environment and Childhood-Project, a population-based birth cohort...
July 6, 2017: Environment International
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