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https://www.readbyqxmd.com/read/28440543/registered-nurses-perceptions-regarding-nurse-led-antiretroviral-therapy-initiation-in-hhohho-region-swaziland
#1
A H Mavhandu-Mudzusi, P T Sandy, A Hettema
BACKGROUND: Swaziland has the highest HIV prevalence globally. It faces a critical shortage of health workers for addressing the HIV pandemic. To curb this human resource challenge, Swaziland adopted a nurse-driven model for antiretroviral therapy delivery in line with the recommendations of the World Health Organization on task shifting. OBJECTIVE: The study explored the perceptions of registered nurses on the nurse-led antiretroviral therapy initiation programme in the Hhohho region of Swaziland (NARTIS)...
April 25, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28440102/smoking-addiction-the-shift-from-head-to-hands-approach-bias-towards-smoking-related-cues-in-low-dependent-versus-dependent-smokers
#2
Sandrine Detandt, Ariane Bazan, Etienne Quertemont, Paul Verbanck
The dual process theory is central to several models of addiction, implying both an increase of stimulus salience and deficits in inhibitory control. Our major aim is to provide behavioral evidence for an approach bias tendency in smokers and more specifically during smoking cue exposure. The second aim is to examine whether this bias differs in low-dependent versus dependent smokers. Thirty-two smokers (17 low dependent and 15 dependent; cut-off FTND of 4) and 28 non-smokers performed a modified Go/NoGo task using tobacco-related words and neutral words as stimuli...
March 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28439791/task-irrelevant-distractors-in-the-delay-period-interfere-selectively-with-visual-short-term-memory-for-spatial-locations
#3
Francesco Marini, Jerry Scott, Adam R Aron, Edward F Ester
Visual short-term memory (VSTM) enables the representation of information in a readily accessible state. VSTM is typically conceptualized as a form of "active" storage that is resistant to interference or disruption, yet several recent studies have shown that under some circumstances task-irrelevant distractors may indeed disrupt performance. Here, we investigated how task-irrelevant visual distractors affected VSTM by asking whether distractors induce a general loss of remembered information or selectively interfere with memory representations...
April 24, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28439232/mapping-the-speech-code-cortical-responses-linking-the-perception-and-production-of-vowels
#4
William L Schuerman, Antje S Meyer, James M McQueen
The acoustic realization of speech is constrained by the physical mechanisms by which it is produced. Yet for speech perception, the degree to which listeners utilize experience derived from speech production has long been debated. In the present study, we examined how sensorimotor adaptation during production may affect perception, and how this relationship may be reflected in early vs. late electrophysiological responses. Participants first performed a baseline speech production task, followed by a vowel categorization task during which EEG responses were recorded...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28435344/development-of-performance-and-error-metrics-for-ultrasound-guided-axillary-brachial-plexus-block
#5
Osman M Ahmed, Brian D O'Donnell, Anthony G Gallagher, George D Shorten
PURPOSE: Change in the landscape of medical education coupled with a paradigm shift toward outcome-based training mandates the trainee to demonstrate specific predefined performance benchmarks in order to progress through training. A valid and reliable assessment tool is a prerequisite for this process. The objective of this study was to characterize ultrasound-guided axillary brachial plexus block to develop performance and error metrics and to verify face and content validity using a modified Delphi method...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28434429/association-between-sleep-disordered-breathing-and-nighttime-driving-performance-in-mild-cognitive-impairment
#6
Nathan Cross, Zoe Terpening, Shantel L Duffy, Simon J G Lewis, Ron Grunstein, Keith Wong, Sharon L Naismith
OBJECTIVES: The effect of sleep disordered breathing (SDB) on driving performance in older adults has not been extensively investigated, especially in those with mild cognitive impairment (MCI). The aim of this study was to examine the relationship between severity measures of SDB and a simulated driving task in older adults with and without MCI. METHODS: Nineteen older adults (age ≥50) meeting criteria for MCI and 23 age-matched cognitively intact controls underwent neuropsychological assessment and a driving simulator task in the evening before a diagnostic sleep study...
April 24, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28433032/ir-spectral-assignments-for-the-hydrated-excess-proton-in-liquid-water
#7
Rajib Biswas, William Carpenter, Joseph A Fournier, Gregory A Voth, Andrei Tokmakoff
The local environmental sensitivity of infrared (IR) spectroscopy to a hydrogen-bonding structure makes it a powerful tool for investigating the structure and dynamics of excess protons in water. Although of significant interest, the line broadening that results from the ultrafast evolution of different solvated proton-water structures makes the assignment of liquid-phase IR spectra a challenging task. In this work, we apply a normal mode analysis using density functional theory of thousands of proton-water clusters taken from reactive molecular dynamics trajectories of the latest generation multistate empirical valence bond proton model (MS-EVB 3...
April 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28432987/multimodal-imaging-of-language-reorganization-in-patients-with-left-temporal-lobe-epilepsy
#8
Yu-Hsuan A Chang, Nobuko Kemmotsu, Kelly M Leyden, N Erkut Kucukboyaci, Vicente J Iragui, Evelyn S Tecoma, Leena Kansal, Marc A Norman, Rachelle Compton, Tobin J Ehrlich, Vedang S Uttarwar, Anny Reyes, Brianna M Paul, Carrie R McDonald
This study explored the relationships among multimodal imaging, clinical features, and language impairment in patients with left temporal lobe epilepsy (LTLE). Fourteen patients with LTLE and 26 controls underwent structural MRI, functional MRI, diffusion tensor imaging, and neuropsychological language tasks. Laterality indices were calculated for each imaging modality and a principal component (PC) was derived from language measures. Correlations were performed among imaging measures, as well as to the language PC...
April 19, 2017: Brain and Language
https://www.readbyqxmd.com/read/28432767/categorical-learning-revealed-in-activity-pattern-of-left-fusiform-cortex
#9
Jessica E Goold, Ming Meng
The brain is organized such that it encodes and maintains category information about thousands of objects. However, how learning shapes these neural representations of object categories is unknown. The present study focuses on faces, examining whether: (1) Enhanced categorical discrimination or (2) Feature analysis enhances face/non-face categorization in the brain. Stimuli ranged from non-faces to faces with two-toned Mooney images used for testing and gray-scale images used for training. The stimulus set was specifically chosen because it has a true categorical boundary between faces and non-faces but the stimuli surrounding that boundary have very similar features, making the boundary harder to learn...
April 22, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28432139/feature-selective-attention-adaptively-shifts-noise-correlations-in-primary-auditory-cortex
#10
Joshua Downer, Brittany Rapone, Jessica Verhein, Kevin N O'Connor, Mitchell L Sutter
Sensory environments often contain an overwhelming amount of information, with both relevant and irrelevant information competing for neural resources. Feature attention mediates this competition by selecting the sensory features needed to form a coherent percept. How attention affects the activity of populations of neurons to support this process is poorly understood because population coding is typically studied through simulations in which one sensory feature is encoded without competition. Therefore, to study the effects of feature attention on population-based neural coding, investigations must be extended to include stimuli with both relevant and irrelevant features...
April 21, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28431949/classification-of-eeg-signals-to-identify-variations-in-attention-during-motor-task-execution
#11
Susan Aliakbaryhosseinabadi, Ernest Nlandu Kamavuako, Ning Jiang, Dario Farina, Natalie Mrachacz-Kersting
BACKGROUND: Brain-computer interface (BCI) systems in neuro-rehabilitation use brain signals to control external devices. User status such as attention affects BCI performance; thus detecting the user's attention drift due to internal or external factors is essential for high detection accuracy. NEW METHOD: An auditory oddball task was applied to divert the users' attention during a simple ankle dorsiflexion movement. Electroencephalogram signals were recorded from eighteen channels...
April 18, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28428165/a-framework-for-the-study-of-complex-mhealth-interventions-in-diverse-cultural-settings
#12
Marion A Maar, Karen Yeates, Nancy Perkins, Lisa Boesch, Diane Hua-Stewart, Peter Liu, Jessica Sleeth, Sheldon W Tobe
BACKGROUND: To facilitate decision-making capacity between options of care under real-life service conditions, clinical trials must be pragmatic to evaluate mobile health (mHealth) interventions under the variable conditions of health care settings with a wide range of participants. The mHealth interventions require changes in the behavior of patients and providers, creating considerable complexity and ambiguity related to causal chains. Process evaluations of the implementation are necessary to shed light on the range of unanticipated effects an intervention may have, what the active ingredients in everyday practice are, how they exert their effect, and how these may vary among recipients or between sites...
April 20, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28425735/clinician-led-peer-led-and-internet-delivered-dissonance-based-eating-disorder-prevention-programs-acute-effectiveness-of-these-delivery-modalities
#13
Eric Stice, Paul Rohde, Heather Shaw, Jeff M Gau
OBJECTIVE: Because independent trials have provided evidence for the efficacy and effectiveness of the dissonance-based Body Project eating disorder prevention program, the present trial tested whether clinicians produce the largest intervention effects, or whether delivery can be task-shifted to less expensive undergraduate peer educators or to Internet delivery without effect size attenuation, focusing on acute effects. METHOD: In this study, 680 young women (Mage = 22...
April 20, 2017: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/28425732/distractor-probability-changes-the-shape-of-the-attentional-template
#14
Joy J Geng, Nicholas E DiQuattro, Jonathan Helm
Theories of attention commonly refer to the "attentional template" as the collection of features in working memory that represent the target of visual search. Many models of attention assume that the template contains a veridical representation of target features, but recent studies have shown that the target representation is "shifted" away from distractor features in order to optimize their distinctiveness and facilitate visual search. Here, we manipulated the probability of target-similar distractors during a visual search task in 2 groups, and separately measured the contents of the attentional template...
April 20, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28421910/multi-step-treatment-for-acquired-alexia-and-agraphia-part-ii-a-dual-route-error-scoring-system
#15
Katrina Ross, Jeffrey P Johnson, Swathi Kiran
Dual-route neuropsychological models posit two distinct but interrelated pathways for reading and writing: the lexical and the sublexical. Individuals with reading/writing deficits often rely on the combined power of the integrated system to perform print-processing tasks. The resultant errors reflect varying degrees of lexical and sublexical accuracy in a single production; however, no system presently exists to analyze errors robustly in both routes. The goal of this project was to develop a system that simultaneously, quantitatively, and qualitatively captures changes in lexical and sublexical errors following treatment...
April 19, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28420979/evidence-for-a-selectively-regulated-prioritization-shift-depending-on-walking-situations-in-older-adults
#16
Dina Salkovic, Markus A Hobert, Carolin Bellut, Florian Funer, Sarah Renno, Linda Haertner, Sandra E Hasmann, Jana Staebler, Johanna Geritz, Ulrike Suenkel, Andreas J Fallgatter, Gerhard W Eschweiler, Daniela Berg, Walter Maetzler
Background: Older adults have increased risks of balance issues and falls when walking and performing turns in daily situations. Changes of prioritization during different walking situations associated with dual tasking may contribute to these deficits. The objective of this study was therefore to investigate whether older adults demonstrate changes of prioritization during different walking paths. Methods: In total, 1,054 subjects with an age range from 50 to 83 years were selected from the first follow-up visit of the TREND (Tuebinger evaluation of Risk factors for Early detection of Neurodegenerative Disorders) study...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28420952/motion-induced-position-shifts-activate-early-visual-cortex
#17
Peter J Kohler, Patrick Cavanagh, Peter U Tse
The ability to correctly determine the position of objects in space is a fundamental task of the visual system. The perceived position of briefly presented static objects can be influenced by nearby moving contours, as demonstrated by various illusions collectively known as motion-induced position shifts. Here we use a stimulus that produces a particularly strong effect of motion on perceived position. We test whether several regions-of-interest (ROIs), at different stages of visual processing, encode the perceived rather than retinotopically veridical position...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28419918/internal-shifting-impairments-in-response-to-emotional-information-in-dysphoric-adolescents
#18
Laura Wante, Sven C Mueller, Ineke Demeyer, Tiffany Naets, Caroline Braet
BACKGROUND AND OBJECTIVES: Previous studies have suggested that internal cognitive control impairments may play an important role in the development of depression. Despite a growing body of research in adults, the ability to shift internal attention between mental representations in working memory has received little attention in younger populations. This study investigated internal shifting capacity between emotional and non-emotional information in dysphoric and non-dysphoric adolescents...
April 13, 2017: Journal of Behavior Therapy and Experimental Psychiatry
https://www.readbyqxmd.com/read/28419099/getting-ready-to-use-control-advances-in-the-measurement-of-young-children-s-use-of-proactive-control
#19
Sabine Doebel, Jane E Barker, Nicolas Chevalier, Laura E Michaelson, Anna V Fisher, Yuko Munakata
A key developmental transition in executive function is in the temporal dynamics of its engagement: children shift from reactively calling to mind task-relevant information as needed, to being able to proactively maintain information across time in anticipation of upcoming demands. This transition is important for understanding individual differences and developmental changes in executive function; however, methods targeting its assessment are limited. We tested the possibility that Track-It, a paradigm developed to measure selective sustained attention, also indexes proactive control...
2017: PloS One
https://www.readbyqxmd.com/read/28418117/articulating-the-ideal-50-years-of-interprofessional-collaboration-in-medical-education
#20
Elise Paradis, Mandy Pipher, Carrie Cartmill, J Cristian Rangel, Cynthia R Whitehead
CONTEXT: Health care delivery and the education of clinicians have changed immensely since the creation of the journal Medical Education. In this project, we seek to answer the following three questions: How has the concept of collaboration changed over the past 50 years in Medical Education? Have the participants involved in collaboration shifted over time? Has the idea of collaboration itself been transformed over the past 50 years? METHODS: Starting from a constructionist view of scientific discourse, we used directed content analysis to sample, code and analyse 144 collaboration-related articles over the 50-year life span of Medical Education...
April 18, 2017: Medical Education
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