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https://www.readbyqxmd.com/read/29792504/measurement-invariance-of-tgmd-3-in-children-with-and-without-mental-and-behavioral-disorders
#1
Daniele Magistro, Giovanni Piumatti, Fabio Carlevaro, Lauren B Sherar, Dale W Esliger, Giulia Bardaglio, Francesca Magno, Massimiliano Zecca, Giovanni Musella
This study evaluated whether the Test of Gross Motor Development 3 (TGMD-3) is a reliable tool to compare children with and without mental and behavioral disorders across gross motor skill domains. A total of 1,075 children (aged 3-11 years), 98 with mental and behavioral disorders and 977 without (typically developing), were included in the analyses. The TGMD-3 evaluates fundamental gross motor skills of children across two domains: locomotor skills and ball skills. Two independent testers simultaneously observed children's performances (agreement over 95%)...
May 24, 2018: Psychological Assessment
https://www.readbyqxmd.com/read/29792113/the-influence-of-hold-regularity-on-perceptual-motor-behaviour-in-indoor-climbing
#2
Chris Button, Dominic Orth, Keith Davids, Ludovic Seifert
Climbers often train on indoor climbing walls, which are modifiable to simulate features of outdoor climbing environments at different levels of difficulty. The aim of this study was to evaluate the influence of regularity of climbing holds on emergent perceptual-motor behaviours. Skilled climbers performed six repetitions of two topographically similar routes on an indoor climbing wall. One route was composed of 18 different types of hand holds (irregular route), whereas the other route had only two types of hand holds (regular route)...
May 24, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29791868/ontogeny-of-white-matter-toll-like-receptor-expression-and-motor-skills-in-the-neonatal-ferret
#3
Jessica M Snyder, Thomas R Wood, Kylie Corry, Daniel H Moralejo, Pratik Parikh, Sandra E Juul
Inflammation caused by perinatal infection, superimposed with hypoxia and/or hyperoxia, appears to be important in the pathogenesis of preterm neonatal encephalopathy, with white matter particularly vulnerable during the third trimester. The associated inflammatory response is at least partly mediated through Toll-like receptor (TLR)-dependent mechanisms. Immunohistochemistry, gene expression, and behavioral studies were used to characterize white matter development and determine TLR3 and TLR4 expression and accumulation in the neonatal ferret brain...
May 20, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29791618/performance-of-children-with-speech-sound-disorders-in-the-dynamic-evaluation-of-motor-speech-skills
#4
Marcia Keske-Soares, Letícia Bitencourt Uberti, Marieli Barichello Gubiani, Marileda Barichello Gubiani, Marizete Ilha Ceron, Karina Carlesso Pagliarin
Purpose To compare performance between children with typical speech acquisition, phonological disorders, and childhood apraxia of speech for the variables overall articulatory accuracy and consistency of the Dynamic Evaluation of Motor Speech Skill - Brazilian Portuguese version (DEMSS-BR). Methods Study participants were 18 children of both genders aged 4 years and 6 months to 5 years and 8 months. The sample was divided into three groups: six children with typical speech acquisition (TSA), six children with phonological disorder (PD), and six individuals with childhood apraxia of speech (CAS)...
2018: CoDAS
https://www.readbyqxmd.com/read/29790002/superior-visual-search-and-crowding-abilities-are-not-characteristic-of-all-individuals-on-the-autism-spectrum
#5
Ebony Lindor, Nicole Rinehart, Joanne Fielding
Individuals with Autism Spectrum Disorder (ASD) often excel on visual search and crowding tasks; however, inconsistent findings suggest that this 'islet of ability' may not be characteristic of the entire spectrum. We examined whether performance on these tasks changed as a function of motor proficiency in children with varying levels of ASD symptomology. Children with high ASD symptomology outperformed all others on complex visual search tasks, but only if their motor skills were rated at, or above, age expectations...
May 22, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29789263/gross-motor-skills-in-toddlers-prevalence-and-socio-demographic-differences
#6
Sanne L C Veldman, Rachel A Jones, Rute Santos, Eduarda Sousa-Sá, Anthony D Okely
OBJECTIVES: Gross motor skills (GMS) are a vital component of a child's development. Monitoring levels and correlates of GMS is important to ensure appropriate strategies are put in place to promote these skills in young children. The aim of this study was to describe the current level of GMS development of children aged 11-29months and how these levels differ by age, sex, BMI and socio-economic status. DESIGN: Cross-sectional study. METHODS: This study involved children from 30 childcare services in NSW, Australia...
May 19, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29789082/the-differential-effect-of-sustained-operations-on-psychomotor-skills-of-helicopter-pilots
#7
Terry W McMahon, David G Newman
INTRODUCTION: Flying a helicopter is a complex psychomotor skill requiring constant control inputs from pilots. A deterioration in psychomotor performance of a helicopter pilot may be detrimental to operational safety. The aim of this study was to test the hypothesis that psychomotor performance deteriorates over time during sustained operations and that the effect is more pronounced in the feet than the hands. The subjects were helicopter pilots conducting sustained multicrew offshore flight operations in a demanding environment...
June 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29787582/determination-of-red-blood-cell-deformability-using-centrifugal-force-in-a-three-dimensional-printed-mini-disk-3d-pmd
#8
Hyunjung Lim, Seung Min Back, Jeonghun Nam, Hyuk Choi
Measuring red blood cell (RBC) deformability has become important for clinical disease diagnostics. Various methods for measuring RBC deformability have been developed; however, they require costly and large instruments, long measuring time, and skilled personnel. In this study, we present a three-dimensional-printed mini-disk (3D-PMD) for measuring RBC deformability to overcome the previous limitations. For a miniaturized and low-cost setup, the 3D-PMD was fabricated by a 3D printing technique, which had not yet been used for fabricating a lab-on-a-compact disk (LOCD)...
2018: PloS One
https://www.readbyqxmd.com/read/29786470/direct-cortical-stimulation-of-inferior-frontal-cortex-disrupts-both-speech-and-music-production-in-highly-trained-musicians
#9
Matthew K Leonard, Maansi Desai, Dylan Hungate, Ruofan Cai, Nilika S Singhal, Robert C Knowlton, Edward F Chang
Music and speech are human-specific behaviours that share numerous properties, including the fine motor skills required to produce them. Given these similarities, previous work has suggested that music and speech may at least partially share neural substrates. To date, much of this work has focused on perception, and has not investigated the neural basis of production, particularly in trained musicians. Here, we report two rare cases of musicians undergoing neurosurgical procedures, where it was possible to directly stimulate the left hemisphere cortex during speech and piano/guitar music production tasks...
May 22, 2018: Cognitive Neuropsychology
https://www.readbyqxmd.com/read/29785799/the-development-of-consistency-and-flexibility-in-manual-pointing-during-middle-childhood
#10
Laura Golenia, Marina M Schoemaker, Egbert Otten, Inge Tuitert, Raoul M Bongers
Goal-directed actions become truly functional and skilled when they are consistent yet flexible. In manual pointing, end-effector consistency is characterized by the end position of the index fingertip, whereas flexibility in movement execution is captured by the use of abundant arm-joint configurations not affecting the index finger end position. Because adults have been shown to exploit their system's flexibility in challenging conditions, we wondered whether during middle childhood children are already able to exploit motor flexibility when demanded by the situation...
May 21, 2018: Developmental Psychobiology
https://www.readbyqxmd.com/read/29785584/interferon-free-therapy-in-hepatitis-c-virus-hcv-monoinfected-and-hcv-hiv-coinfected-patients-effect-on-cognitive-function-fatigue-and-mental-health
#11
Felix Kleefeld, Sophie Heller, Patrick Ingiliz, Heiko Jessen, Anders Petersen, Ute Kopp, Antje Kraft, Katrin Hahn
The efficacy and safety of interferon-free therapies for hepatitis C virus (HCV) infection have been reported. Considering the accumulating evidence for a direct central nervous system infection by HCV, we aim to evaluate the effect of direct acting antivirals (DAA) therapy on cognitive function in HCV patients. We conducted a longitudinal analysis of the cognitive performance of 22 patients (8 HCV+, 14 HCV+/HIV+) who completed neuropsychological testing at baseline and at week 12 after DAA therapy. In 20 patients, we analyzed specific attention parameters derived from an experimental testing based on the Theory of Visual Attention (TVA)...
May 21, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29784756/clinical-features-of-children-with-autism-who-passed-18-month-screening
#12
Roald A Øien, Synnve Schjølberg, Fred R Volkmar, Frederick Shic, Domenic V Cicchetti, Anders Nordahl-Hansen, Nina Stenberg, Mady Hornig, Alexandra Havdahl, Anne-Siri Øyen, Pamela Ventola, Ezra S Susser, Martin R Eisemann, Katarzyna Chawarska
OBJECTIVES: We compared sex-stratified developmental and temperamental profiles at 18 months in children screening negative for autism spectrum disorder (ASD) on the Modified Checklist for Autism in Toddlers (M-CHAT) but later receiving diagnoses of ASD (false-negative group) versus those without later ASD diagnoses (true-negative group). METHODS: We included 68 197 screen-negative cases from the Norwegian Mother and Child Cohort Study (49.1% girls). Children were screened by using the 6 critical items of the M-CHAT at 18 months...
May 21, 2018: Pediatrics
https://www.readbyqxmd.com/read/29783988/tolerogenic-bone-marrow-derived-dendritic-cells-induce-neuroprotective-regulatory-t-cells-in-a-model-of-parkinson-s-disease
#13
Charles R Schutt, Howard E Gendelman, R Lee Mosley
BACKGROUND: Administration of granulocyte-macrophage colony-stimulating factor (GM-CSF) increases regulatory T cell (Treg) number and function with control of neuroinflammation and neuronal protection in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) model of Parkinson's disease (PD). Recently, we demonstrated in an early phase 1 clinical trial that GM-CSF also improves motor skills in PD patients. However, the mechanisms of Treg induction and its effects on neuroprotective responses remain unknown...
May 21, 2018: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29781570/effect-of-motor-based-speech-intervention-on-articulatory-placement-in-the-treatment-of-a-posterior-nasal-fricative-a-preliminary-mri-study-on-a-single-subject
#14
Kazlin N Mason, Eshan Pua, Jamie L Perry
BACKGROUND: Posterior nasal fricatives are a learned compensatory articulation error and commonly substituted for oral fricatives. Treatment of such articulation errors requires the modification or teaching of skilled movements. A motor-based approach is designed to teach the complex motor skill movement sequences required in the production of sounds. Although motor learning research is well established, little has been done to determine how the approach changes the underlying physiology of articulatory movements...
May 21, 2018: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29781345/sluggish-cognitive-tempo-predicts-academic-fluency-beyond-contributions-of-core-academic-skills-attention-and-motor-speed
#15
Lisa A Jacobson, E Mark Mahone
OBJECTIVE: Sluggish Cognitive Tempo (SCT) is a distinct behavioral phenotype characterized by such symptoms as being slow to complete tasks, appearing drowsy or sleepy, and lacking initiative. Subcomponents of SCT appear differentially associated with inattention symptoms and child outcomes. Much of the work in this area has examined associations between SCT symptoms and ratings of behavior; few studies have examined associations with child performance. METHOD: We examined associations between SCT and timed reading and math skills in 247 referred youth ( M age = 11...
May 1, 2018: Journal of Attention Disorders
https://www.readbyqxmd.com/read/29779737/neurodevelopmental-perspectives-on-dance-learning-insights-from-early-adolescence-and-young-adulthood
#16
Dilini K Sumanapala, Jon Walbrin, Louise P Kirsch, Emily S Cross
Studies investigating human motor learning and movement perception have shown that similar sensorimotor brain regions are engaged when we observe or perform action sequences. However, the way these networks enable translation of complex observed actions into motor commands-such as in the context of dance-remains poorly understood. Emerging evidence suggests that the ability to encode specific visuospatial and kinematic movement properties encountered via different routes of sensorimotor experience may be an integral component of action learning throughout development...
2018: Progress in Brain Research
https://www.readbyqxmd.com/read/29778761/preferential-stabilization-of-newly-formed-dendritic-spines-in-motor-cortex-during-manual-skill-learning-predicts-performance-gains-but-not-memory-endurance
#17
Taylor A Clark, Min Fu, Andrew K Dunn, Yi Zuo, Theresa A Jones
Previous findings that skill learning is associated with the formation and preferential stabilization of new dendritic spines in cortex have raised the possibility that this preferential stabilization is a mechanism for lasting skill memory. We investigated this possibility in adult mice using in vivo two-photon imaging to monitor spine dynamics on superficial apical dendrites of layer V pyramidal neurons in motor cortex during manual skill learning. Spine formation increased over the first 3 days of training on a skilled reaching task, followed by increased spine elimination...
May 17, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29778064/is-the-limit-cycle-attractor-an-almost-invariable-characteristic-in-human-walking
#18
Kim-Charline Broscheid, Christian Dettmers, Manfred Vieten
BACKGROUND: Common methods of gait analyses measure step length/width, gait velocity and gait variability to name just a few. Those parameters tend to be changing with fitness and skill of the subjects. But, do stable subject characteristic parameters in walking exist? Does the Limit-Cycle-Attractor qualify as such a parameter?. RESEARCH QUESTION: The attractor method is a new approach focusing on the dynamics of human motion. It classifies the fundamental walking pattern by calculating the Limit-Cycle-Attractor and its variability from acceleration data of the feet...
May 16, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29777527/limiting-motor-skill-knowledge-via-incidental-training-protects-against-choking-under-pressure
#19
Taraz G Lee, Daniel E Acuña, Konrad P Kording, Scott T Grafton
The paradoxical harmful effects of motivation and incentives on skilled performance ("choking under pressure") are observed in a wide variety of motor tasks. Two theories of this phenomenon suggest that choking under pressure occurs due to maladaptive attention and top-down control, either through distraction away from the task or interference via an overreliance on controlled processing of a skilled task. A third theory, overmotivation (or overarousal), suggests that under pressure, "instinctive" or Pavlovian approach/withdrawal responses compete with the desired response...
May 18, 2018: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/29777356/visuospatial-abilities-and-fine-motor-experiences-influence-acquisition-and-maintenance-of-fundamentals-of-laparoscopic-surgery-fls-task-performance
#20
Cuan M Harrington, Patrick Dicker, Oscar Traynor, Dara O Kavanagh
BACKGROUND: Minimally invasive surgery poses a unique learning curve due to the requirement for non-intuitive psychomotor skills. The fundamentals of laparoscopic surgery (FLS) program trains and certifies residents in such skills. However, innate predictors of FLS performance and maintenance remain to be described. This single-centre observational study aimed to assess for candidate factors influencing the acquisition and maintenance of FLS performance amongst a surgically naïve cohort...
May 18, 2018: Surgical Endoscopy
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