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Cognitive Load

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https://www.readbyqxmd.com/read/29146562/multi-method-laboratory-user-evaluation-of-an-actionable-clinical-performance-information-system-implications-for-usability-and-patient-safety
#1
Benjamin Brown, Panos Balatsoukas, Richard Williams, Matthew Sperrin, Iain Buchan
INTRODUCTION: Electronic audit and feedback (e-A&F) systems are used worldwide for care quality improvement. They measure health professionals' performance against clinical guidelines, and some systems suggest improvement actions. However, little is known about optimal interface designs for e-A&F, in particular how to present suggested actions for improvement. We developed a novel theory-informed system for primary care (the Performance Improvement plaN GeneratoR; PINGR) that covers the four principal interface components: clinical performance summaries; patient lists; detailed patient-level information; and suggested actions...
November 13, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29144422/atypical-processing-of-novel-distracters-in-a-visual-oddball-task-in-autism-spectrum-disorder
#2
Estate M Sokhadze, Eva V Lamina, Emily L Casanova, Desmond P Kelly, Ioan Opris, Irma Khachidze, Manuel F Casanova
Several studies have shown that children with autism spectrum disorder (ASD) show abnormalities in P3b to targets in standard oddball tasks. The present study employed a three-stimulus visual oddball task with novel distracters that analyzed event-related potentials (ERP) to both target and non-target items at frontal and parietal sites. The task tested the hypothesis that children with autism are abnormally orienting attention to distracters probably due to impaired habituation to novelty. We predicted a lower selectivity in early ERPs to target, frequent non-target, and rare distracters...
November 16, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/29138873/effects-of-cognitive-load-on-the-amount-and-temporal-structure-of-postural-sway-variability-in-stroke-survivors
#3
Hajar Mehdizadeh, Kinda Khalaf, Hamed Ghomashchi, Ghorban Taghizadeh, Ismaeil Ebrahimi, Parvaneh Taghavi Azar Sharabiani, Seyed Javad Mousavi, Mohamad Parnianpour
This study aimed to investigate the variability in postural sway patterns during quiet standing in stroke survivors. The postural sway was measured in 19 stroke survivors, as well as 19 healthy demographically matched participants, at 3 levels of postural difficulty (rigid surface with closed and open eyes, and foam surface with closed eyes), and 3 levels of cognitive difficulty (without a cognitive task, easy and difficult cognitive tasks). Both linear analyses (the amount of postural sway variability, including the standard deviation of the COP velocity in both the anteroposterior (AP) and mediolateral (ML) directions), as well as non-linear analyses [the temporal structure of the COP variability, including % Recurrence, % Determinism, Shannon Entropy, Trend and the maximum diagonal line (D max)] were employed...
November 14, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29137968/food-bundling-as-a-health-nudge-investigating-consumer-fruit-and-vegetable-selection-using-behavioral-economics
#4
Kathryn A Carroll, Anya Samek, Lydia Zepeda
Displaying bundles of healthy foods at the grocery store is a health nudge that simplifies shopping and may have the potential for increasing fruit and vegetable (F&V) purchasing. To evaluate the impact of food bundling, we conduct an artefactual field experiment with community participants in a laboratory set up as a grocery store. Dual-self theory suggests that food choices may differ depending on whether shoppers are under cognitive load - in our experiment, we exogenously vary whether bundles are displayed (with and without a price discount) and whether shoppers are under cognitive load...
November 11, 2017: Appetite
https://www.readbyqxmd.com/read/29137697/the-readiness-to-change-for-bariatric-surgery-assessment-tool-validity-factor-structure-and-reliability
#5
Susan M S Carlson
BACKGROUND AND PURPOSE: Currently, there is no guideline or standard of practice for performing the psychiatric/psychological evaluation that is a requirement for approval for bariatric surgery. The Readiness to Change for Bariatric Surgery Assessment Tool (RCB-SAT) establishes a means for psychiatric evaluators to objectively assess the patient's cognition, beliefs, and motivation around the bariatric diet and lifestyle changes. Development of a clinical decision-making tool for assessing readiness to change in bariatric patients will be useful regarding The Strategic Plan for NIH Obesity Research...
November 1, 2017: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/29131814/effects-of-an-exercise-protocol-for-improving-handgrip-strength-and-walking-speed-on-cognitive-function-in-patients-with-chronic-stroke
#6
Jaeeun Kim, Jongeun Yim
BACKGROUND Handgrip strength and walking speed predict and influence cognitive function. We aimed to investigate an exercise protocol for improving handgrip strength and walking speed, applied to patients with chronic stroke who had cognitive function disorder. MATERIAL AND METHODS Twenty-nine patients with cognitive function disorder participated in this study, and were randomly divided into one of two groups: exercise group (n=14) and control group (n=15). Both groups underwent conventional physical therapy for 60 minutes per day...
November 13, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29130491/teaching-learning-tips-2-cognitive-load-theory
#7
Jasmine Rana, Susan Burgin
Challenge: Dermatology trainees include medical students, residents, and fellows. Variability in level of experience and background knowledge can make clinical teaching challenging. Research also shows novices have different ways of thinking than experts, which must be acknowledged in the preceptor-trainee interaction for optimal teaching and learning to occur. Herein we explore how "cognitive load" varies with learner level and how reducing cognitive load can enhance learning, especially for novice learners...
December 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29129794/is-hand-selection-modulated-by-cognitive-perceptual-load
#8
Jiali Liang, Krista Wilkinson, Robert L Sainburg
Previous studies proposed that selecting which hand to use for a reaching task appears to be modulated by a factor described as "task difficulty". However, what features of a task might contribute to greater or lesser "difficulty" in the context of hand selection decisions has yet to be determined. There has been evidence that biomechanical and kinematic factors such as movement smoothness and work can predict patterns of selection across the workspace, suggesting a role of predictive cost analysis in hand-selection...
November 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/29124674/the-cognitive-loci-of-the-display-and-task-relevant-set-size-effects-on-distractor-interference-evidence-from-a-dual-task-paradigm
#9
Bo Youn Park, Sujin Kim, Yang Seok Cho
The congruency effect of a task-irrelevant distractor has been found to be modulated by task-relevant set size and display set size. The present study used a psychological refractory period (PRP) paradigm to examine the cognitive loci of the display set size effect (dilution effect) and the task-relevant set size effect (perceptual load effect) on distractor interference. A tone discrimination task (Task 1), in which a response was made to the pitch of the target tone, was followed by a letter discrimination task (Task 2) in which different types of visual target display were used...
November 9, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/29124106/gamma-rhythm-low-field-magnetic-stimulation-alleviates-neuropathologic-changes-and-rescues-memory-and-cognitive-impairments-in-a-mouse-model-of-alzheimer-s-disease
#10
Junli Zhen, Yanjing Qian, Xiechuan Weng, Wenting Su, Jianliang Zhang, Lihui Cai, Lin Dong, Haiting An, Ruijun Su, Jiang Wang, Yan Zheng, Xiaomin Wang
Introduction: The abnormal amyloid β (Aβ) accumulation and Aβ-related neural network dysfunction are considered central to the pathogenesis of Alzheimer's disease (AD) at the early stage. Deep-brain reachable low field magnetic stimulation (DMS), a novel noninvasive approach that was designed to intervene the network activity in brains, has been found to alleviate stress-related cognitive impairments. Methods: Amyloid precursor protein/presenilin-1 transgenic mice (5XFAD) were treated with DMS, and cognitive behavior and AD-like pathologic changes in the neurochemical and electrophysiological properties in 5XFAD mice were assessed...
November 2017: Alzheimer's & Dementia: Translational Research & Clinical Interventions
https://www.readbyqxmd.com/read/29123074/the-first-case-series-of-chinese-patients-in-hong-kong-with-familial-alzheimer-s-disease-compared-with-those-with-biomarker-confirmed-sporadic-late-onset-alzheimer-s-disease
#11
Y F Shea, L W Chu, S C Lee, A Ok Chan
INTRODUCTION: Patients with familial Alzheimer's disease are being increasingly reported in Hong Kong. The objectives of this study were to report the clinical features of these patients, and to compare them with those with biomarker-confirmed sporadic late-onset Alzheimer's disease. METHODS: All symptomatic Chinese patients with familial Alzheimer's disease who attended Queen Mary Hospital, Memory Clinic between January 1998 and December 2016 were included. Clinical features, baseline Mini-Mental State Examination score, and presenting cognitive symptoms or atypical clinical features were collected...
November 10, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/29121652/risk-of-predation-makes-foragers-less-choosy-about-their-food
#12
Alice Charalabidis, François-Xavier Dechaume-Moncharmont, Sandrine Petit, David A Bohan
Animals foraging in the wild have to balance speed of decision making and accuracy of assessment of a food item's quality. If resource quality is important for maximizing fitness, then the duration of decision making may be in conflict with other crucial and time consuming tasks, such as anti-predator behaviours or competition monitoring. Individuals facing the risk of predation and/or competition should adjust the duration of decision making and, as a consequence, their level of choosiness for resources. When exposed to predation, the forager could either maintain its level of choosiness for food items but accept a reduction in the amount of food items consumed or it could reduce its level of choosiness and accept all prey items encountered...
2017: PloS One
https://www.readbyqxmd.com/read/29121506/what-factors-determine-the-preferred-gait-transition-speed-in-humans-a-review-of-the-triggering-mechanisms
#13
Stacey M Kung, Philip W Fink, Stephen J Legg, Ajmol Ali, Sarah P Shultz
Human locomotion is a fundamental skill that is required for daily living, yet it is not completely known how human gait is regulated in a manner that seems so effortless. Gait transitions have been analyzed to gain insight into the control mechanisms of human locomotion since there is a known change that occurs as the speed of locomotion changes. Specifically, as gait speed changes, there is a spontaneous transition between walking and running that occurs at a particular speed. Despite the growing body of research on the determinants of this preferred transition speed and thus the triggering mechanisms of human gait transitions, a clear consensus regarding the control mechanisms of gait is still lacking...
November 6, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29120261/effects-of-vision-and-cognitive-load-on-static-postural-control-in-subjects-with-and-without-patellofemoral-pain-syndrome
#14
Afsaneh Zeinalzadeh, Saeed Talebian, Soofia Naghdi, Mahyar Salavati, Salman Nazary-Moghadam, Bahareh Zeynalzadeh Ghoochani
OBJECTIVE: To compare the effects of vision and cognitive load on static postural control in subjects with and without patellofemoral pain syndrome (PFPS). METHODS: Twenty-eight PFPS patients and 28 controls participated in the study. Postural control was assessed in isolation as well as with visual manipulation and cognitive loading on symptomatic limb. The outcome measures of postural control were quantified in terms of area, anterior-posterior (AP), medial-lateral (ML), and mean velocity (MV) of the displacements of center of pressure (COP)...
November 9, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29117748/ward-round-simulation-in-final-year-medical-students-does-it-promote-students-learning
#15
Claudia Behrens, Diana H J M Dolmans, Jimmie Leppink, Gerard J Gormley, Erik W Driessen
INTRODUCTION: Ward round skills are essential for doctors in hospital settings. Literature shows medical students' deficiencies in these skills. Simulation has been used to train these skills. However, exposing learners to simulation at an early stage may be associated with a high cognitive load and limited learning. This study aims to determine how students experience this load and its interplay with performance and which factors promote and impair learning. METHODS: Fifty-six final year medical students participated in a simulated ward round training exercise...
November 9, 2017: Medical Teacher
https://www.readbyqxmd.com/read/29116242/task-engagement-and-mental-workload-involved-in-variation-and-repetition-of-a-motor-skill
#16
Natália Lelis-Torres, Herbert Ugrinowitsch, Tércio Apolinário-Souza, Rodolfo N Benda, Guilherme M Lage
Explanatory hypotheses proposed in behavioral studies assumed that less repetitive practice schedules, such as random practice, seem to demand greater cognitive effort than more repetitive types of practice organization, such as constant. All of these hypotheses emphasize the enhanced demand to memory processes promoted by less repetitive practice schedules. In the present study, we investigated the cognitive effort involved in random and constant practice schedules with an electrophysiological approach. Twenty-one male participants practiced a sequential key-pressing task with two goals: learning the relative timing dimension and learning the absolute timing dimension...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29111024/cognition-and-quality-of-life-in-clinically-isolated-syndrome-patients-starting-a-disease-modifying-therapy-in-the-qualicis-study-may-not-predict-treatment-response-at-one-year
#17
Mikael Cohen, Bruno Brochet, Pierre Clavelou, Emmanuelle Le Page, Patrick Vermersch, Ayman Tourbah, Thibault Moreau, Héloïse Joly, Charlotte Sakarovitch, Christine Lebrun
Cognition and health-related quality of life (HRQoL) are early involved in multiple sclerosis (MS). The aim of QUALICIS study was to monitor cognition and HRQoL prospectively in a cohort of clinically isolated syndrome (CIS) patients starting a treatment with subcutaneous beta-1b interferon as a first disease modifying treatment (DMT), and to assess their correlation with the clinical outcome 6years later. Relapse history, EDSS and yearly standardized brain MRI data were also collected. 37 patients were included...
November 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29108941/both-hyper-and-hypo-activation-to-cognitive-challenge-are-associated-with-increased-beta-amyloid-deposition-in-healthy-aging-a-nonlinear-effect
#18
Chris M Foster, Kristen M Kennedy, Marci M Horn, David A Hoagey, Karen M Rodrigue
Beta-amyloid (Aβ) positive individuals hyper-activate brain regions compared to those not at-risk; however, hyperactivation is then thought to diminish as Alzheimer's disease symptomatology begins, evidencing eventual hypoactivation. It remains unclear when in the disease staging this transition occurs. We hypothesized that differential levels of amyloid burden would be associated with both increased and decreased activation (i.e., a quadratic trajectory) in cognitively-normal adults. Participants (N = 62; aged 51-94) underwent an fMRI spatial distance-judgment task and Amyvid-PET scanning...
November 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/29104331/experiential-avoidance-and-bordering-psychological-constructs-as-predictors-of-the-onset-relapse-and-maintenance-of-anxiety-disorders-one-or-many
#19
Philip Spinhoven, Albert M van Hemert, Brenda W J H Penninx
To investigate (a) the incremental predictive validity of experiential avoidance over and above bordering psychological constructs (i.e., rumination, worry, neuroticism and anxiety sensitivity) in predicting onset, relapse and maintenance of anxiety disorders; and (b) whether these related constructs can be represented by a single, higher-order latent factor with similar predictive power as the separate psychological constructs while offering a more parsimonious predictive model. Longitudinal cohort study with repeated assessments after 4 years in a sample of 2157 adults aged 18-65, consisting of 1614 persons with past or current anxiety disorder (Panic Disorder with or without Agoraphobia, Social Anxiety Disorder, Generalized Anxiety Disorder, Agoraphobia without panic) according to the Composite Interview Diagnostic Instrument (CIDI) and 543 controls...
2017: Cognitive Therapy and Research
https://www.readbyqxmd.com/read/29099654/control-of-impact-loading-during-distracted-running-before-and-after-gait-retraining-in-runners
#20
Roy T H Cheung, Winko W An, Ivan P H Au, Janet H Zhang, Zoe Y S Chan, Aislinn J MacPhail
Gait retraining using visual biofeedback has been reported to reduce impact loading in runners. However, most of the previous studies did not adequately examine the level of motor learning after training, as the modified gait pattern was not tested in a dual-task condition. Hence, this study sought to compare the landing peak positive acceleration (PPA) and vertical loading rates during distracted running before and after gait retraining. Sixteen recreational runners underwent a two-week visual biofeedback gait retraining program for impact loading reduction, with feedback on the PPA measured at heel...
November 3, 2017: Journal of Sports Sciences
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