Search Results - "Newell, M."

Search Strategies in the Perceptual-Motor Workspace and the Acquisition of Coordination, Control, and Skill by Pacheco, Matheus M, Lafe, Charley W, Newell, Karl M

“…In this paper we re-visit and elaborate-on the theoretical framework of learning as searching within the perceptual-motor workspace for a solution to the task…”
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Prevalence and correlates of depression among HIV-infected and -affected older people in rural South Africa by Nyirenda, M, Chatterji, S, Rochat, T, Mutevedzi, P, Newell, M.-L

“…Abstract Background Little is known about depression in older people in sub-Saharan Africa, the associated impact of HIV, and the influence on health…”
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Learning a specific, individual and generalizable coordination function: evaluating the variability of practice hypothesis in motor learning by Pacheco, Matheus M., Newell, Karl M.

“…Constant and variable practice conditions have been hypothesized to lead to different learning outcomes between them but similar within. However, experiments…”
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Modulation of cortical activity in 2D versus 3D virtual reality environments: An EEG study by Slobounov, Semyon M., Ray, William, Johnson, Brian, Slobounov, Elena, Newell, Karl M.

“…There is a growing empirical evidence that virtual reality (VR) is valuable for education, training, entertaining and medical rehabilitation due to its…”
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Teaching Children's Motor Skills for Team Games Through Guided Discovery: How Constraints Enhance Learning by Newell, Karl M, Rovegno, Inez

“…In this paper we examine the role of instructional strategies as constraints within a discovery learning framework for the teaching of open skill team ball…”
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Physiological tremor (8–12Hz component) in isometric force control by Novak, Thomas, Newell, Karl M.

“…•The magnitude of physiological tremor is enhanced as a function of increased neural drive in isometric force production.•Physiological tremor directly…”
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Changing up the routine: intervention-induced variability in motor learning by Ranganathan, Rajiv, Newell, Karl M

“…Variability is often introduced by an external agent (e.g., an instructor) during practice with the purpose of enhancing motor learning. Using a task analysis…”
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Narrowing the coordination solution space during motor learning standardizes individual patterns of search strategy but diversifies learning rates by Komar, John, Seifert, Ludovic, Vergne, Nicolas, Newell, Karl M.

“…Constraints on practice can benefit motor learning by guiding the learner towards efficient coordination patterns, but can also narrow the potential solution…”
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Repetition Without Repetition: Challenges in Understanding Behavioral Flexibility in Motor Skill by Ranganathan, Rajiv, Lee, Mei-Hua, Newell, Karl M

“…A hallmark of skilled motor performance is behavioral flexibility - i.e., experts can not only produce a movement pattern to reliably and efficiently achieve a…”
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Transfer of a learned coordination function: Specific, individual and generalizable by Pacheco, Matheus M., Newell, Karl M.

“…•Individuals start, search through and can perform one of many solutions of the task.•Individuals learn a coordination specific (functional), individual and…”
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Aging and the complexity of center of pressure in static and dynamic postural tasks by Ko, Ji-Hyun, Newell, Karl M.

“…•We investigated the complexity of COP as a function of age and postural task.•The COP complexity was lower for the old adults in the constant target…”
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Challenges in PMTCT antiretroviral adherence in northern KwaZulu-Natal, South Africa by Mepham, S., Zondi, Z., Mbuyazi, A., Mkhwanazi, N., Newell, M.L.

“…Background. Women living with HIV in sub-Saharan Africa face significant challenges in accessing HIV care and adhering to antiretroviral therapy. Most reports…”
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HIV status and participation in HIV surveillance in the era of antiretroviral treatment: a study of linked population‐based and clinical data in rural South Africa by Bärnighausen, T., Tanser, F., Malaza, A., Herbst, K., Newell, M. ‐L.

“…Objective  To examine whether HIV status affects participation in a population‐based longitudinal HIV surveillance in the context of an expanding HIV treatment…”
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The degrees of freedom problem in human standing posture: collective and component dynamics by Wang, Zheng, Ko, Ji Hyun, Challis, John H, Newell, Karl M

“…The experiment was setup to investigate the coordination and control of the degrees of freedom (DFs) of human standing posture with particular reference to the…”
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Coordination and control of posture and ball release in basketball free-throw shooting by Verhoeven, F. Martijn, Newell, Karl M.

“…•Differences in performance are explained by the degree an individual uses the redundant task space.•Better shooters show higher variance along the task space…”
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Models of Postural Control: Shared Variance in Joint and COM Motions by Kilby, Melissa C, Molenaar, Peter C M, Newell, Karl M

“…This paper investigated the organization of the postural control system in human upright stance. To this aim the shared variance between joint and 3D total…”
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Data resource profile: the World Health Organization Study on global AGEing and adult health (SAGE) by Kowal, Paul, Chatterji, Somnath, Naidoo, Nirmala, Biritwum, Richard, Fan, Wu, Lopez Ridaura, Ruy, Maximova, Tamara, Arokiasamy, Perianayagam, Phaswana-Mafuya, Nancy, Williams, Sharon, Snodgrass, J Josh, Minicuci, Nadia, D'Este, Catherine, Peltzer, Karl, Boerma, J Ties

“…Population ageing is rapidly becoming a global issue and will have a major impact on health policies and programmes. The World Health Organization's Study on…”
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Exploration of the Specificity of Motor Skills Hypothesis in 7–8 Year Old Primary School Children: Exploring the Relationship Between 12 Different Motor Skills From Two Different Motor Competence Test Batteries by Sigmundsson, Hermundur, Newell, Karl M., Polman, Remco, Haga, Monika

“…This study examined the specificity hypothesis by examining the association between two specific motor competence test batteries [Movement Assessment Battery…”
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Major depression and comorbid substance use disorders by Davis, Lori, Uezato, Akihito, Newell, Jason M, Frazier, Elizabeth

“…PURPOSE OF REVIEWThe presentation of major depressive disorder is often complicated by the co-occurrence of substance use disorders, such as alcohol and…”
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Asymmetry of foot position and weight distribution channels the inter-leg coordination dynamics of standing by Wang, Zheng, Newell, Karl M.

“…The study of quiet standing has mainly been conducted in the foot side-by-side position with the assumption that the contribution of the lower limbs is…”
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