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cognitive load theory

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https://www.readbyqxmd.com/read/28196714/working-memory-load-modulates-the-neural-response-to-other-s-pain-evidence-from-an-erp-study
#1
Fang Cui, Xiangru Zhu, Yuejia Luo, Jiaping Cheng
The present study investigated the time course of processing other's pain under different conditions of working memory (WM) load. Event-related potentials (ERPs) were recorded while the participants held two digits (low WM load) or six digits (high WM load) in WM and viewed pictures that showed others who were in painful or non-painful situations. Robust WM-load × Picture interactions were found for the N2 and LPP components. In the high WM-load condition, painful pictures elicited significantly larger amplitudes than non-painful pictures...
February 11, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28146674/rest-is-still-best
#2
William S Helton, Paul N Russell
OBJECTIVE: We examined the impact task interruptions of differing qualitative and quantitative load have on visuospatial vigilance sensitivity. BACKGROUND: The vigilance decrement and attempts to develop countermeasures to the decrement is one of the most important human factors issues. There is an ongoing debate between those who interpret the increase in the rate of failures to detect signals over time as being due to objective task monotony or task underload and those who interpret this increased failure proneness as being predominately due to cognitive-resource depletion and task overload...
February 2017: Human Factors
https://www.readbyqxmd.com/read/28141884/beyond-the-dedicated-education-unit-using-cognitive-load-theory-to-guide-clinical-placement
#3
Pamela McPhie Mulcock, Jane Grassley, Michael Davis, Kathryn White
BACKGROUND: Navigating multiple instructors and clinical agencies can impair students' learning by increasing their cognitive load and perceived stress. This study used cognitive load theory to guide the home base clinical model (HBCM), which assigned students to the same faculty and hospital unit for two consecutive medical-surgical clinical courses. METHOD: The study used a quasi-experimental three-group design to evaluate the effects of the HBCM on students' perceived stress, compared with groups who changed hospital or instructor...
February 1, 2017: Journal of Nursing Education
https://www.readbyqxmd.com/read/28120370/modelling-gesture-use-and-early-language-development-in-autism-spectrum-disorder
#4
Stacy S Manwaring, Danielle L Mead, Lauren Swineford, Audrey Thurm
BACKGROUND: Nonverbal communication abilities, including gesture use, are impaired in autism spectrum disorder (ASD). However, little is known about how common gestures may influence or be influenced by other areas of development. AIMS: To examine the relationships between gesture, fine motor and language in young children with ASD compared with a comparison group using multiple measures and methods in a structural equation modelling framework. METHODS & PROCEDURES: Participants included 110 children with ASD and a non-ASD comparison group of 87 children (that included children with developmental delays (DD) or typical development (TD)), from 12 to 48 months of age...
January 24, 2017: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28105719/allostatic-load-and-biological-anthropology
#5
Ashley N Edes, Douglas E Crews
Multiple stressors affect developing and adult organisms, thereby partly structuring their phenotypes. Determining how stressors influence health, well-being, and longevity in human and nonhuman primate populations are major foci within biological anthropology. Although much effort has been devoted to examining responses to multiple environmental and sociocultural stressors, no holistic metric to measure stress-related physiological dysfunction has been widely applied within biological anthropology. Researchers from disciplines outside anthropology are using allostatic load indices (ALIs) to estimate such dysregulation and examine life-long outcomes of stressor exposures, including morbidity and mortality...
January 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28060919/the-older-adult-positivity-effect-in-evaluations-of-trustworthiness-emotion-regulation-or-cognitive-capacity
#6
Leslie A Zebrowitz, Jasmine Boshyan, Noreen Ward, Angela Gutchess, Nouchine Hadjikhani
An older adult positivity effect, i.e., the tendency for older adults to favor positive over negative stimulus information more than do younger adults, has been previously shown in attention, memory, and evaluations. This effect has been attributed to greater emotion regulation in older adults. In the case of attention and memory, this explanation has been supported by some evidence that the older adult positivity effect is most pronounced for negative stimuli, which would motivate emotion regulation, and that it is reduced by cognitive load, which would impede emotion regulation...
2017: PloS One
https://www.readbyqxmd.com/read/28051893/shame-in-medical-education-a-randomized-study-of-the-acquisition-of-intimate-examination-skills-and-its-effect-on-subsequent-performance
#7
Wolf E Hautz, Therese Schröder, Katja A Dannenberg, Maren März, Henrike Hölzer, Olaf Ahlers, Anke Thomas
THEORY: Although medical students are exposed to a variety of emotions, the impact of emotions on learning has received little attention so far. Shame-provoking intimate examinations are among the most memorable events for students. Their emotions, however, are rarely addressed during training, potentially leading to withdrawal and avoidance and, consequently, performance deficits. However, emotions of negative valance such as shame may be particularly valuable for learning, as they might prompt mental rehearsal...
January 4, 2017: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/28041884/synaptic-correlates-of-working-memory-capacity
#8
Yuanyuan Mi, Mikhail Katkov, Misha Tsodyks
Psychological studies indicate that human ability to keep information in readily accessible working memory is limited to four items for most people. This extremely low capacity severely limits execution of many cognitive tasks, but its neuronal underpinnings remain unclear. Here we show that in the framework of synaptic theory of working memory, capacity can be analytically estimated to scale with characteristic time of short-term synaptic depression relative to synaptic current time constant. The number of items in working memory can be regulated by external excitation, enabling the system to be tuned to the desired load and to clear the working memory of currently held items to make room for new ones...
January 18, 2017: Neuron
https://www.readbyqxmd.com/read/27928748/pupillary-response-to-complex-interdependent-tasks-a-cognitive-load-theory-perspective
#9
Ritayan Mitra, Karen S McNeal, Howard D Bondell
Pupil dilation is known to indicate cognitive load. In this study, we looked at the average pupillary responses of a cohort of 29 undergraduate students during graphical problem solving. Three questions were asked, based on the same graphical input. The questions were interdependent and comprised multiple steps. We propose a novel way of analyzing pupillometry data for such tasks on the basis of eye fixations, a commonly used eyetracking parameter. We found that pupil diameter increased during the solution process...
December 7, 2016: Behavior Research Methods
https://www.readbyqxmd.com/read/27877140/-but-implicatures-a-study-of-the-effect-of-working-memory-and-argument-characteristics
#10
Leen Janssens, Walter Schaeken
This study aimed to investigate the possible cognitive costs involved in processing the implicatures from but and the conclusion introducing words so and nevertheless. Adult participants were asked to indicate the conclusion that the person in the story would make, based on 'p but q' sentences constructed as indirect distancing contrasts. Additionally, while performing this task, participants' working memory was burdened with a secondary dot recall task in four conditions ranging from no working memory load to high load...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27835981/testing-a-videogame-intervention-to-recalibrate-physician-heuristics-in-trauma-triage-study-protocol-for-a-randomized-controlled-trial
#11
Deepika Mohan, Matthew R Rosengart, Baruch Fischhoff, Derek C Angus, Coreen Farris, Donald M Yealy, David J Wallace, Amber E Barnato
BACKGROUND: Between 30 and 40 % of patients with severe injuries receive treatment at non-trauma centers (under-triage), largely because of physician decision making. Existing interventions to improve triage by physicians ignore the role that intuition (heuristics) plays in these decisions. One such heuristic is to form an initial impression based on representativeness (how typical does a patient appear of one with severe injuries). We created a video game (Night Shift) to recalibrate physician's representativeness heuristic in trauma triage...
November 11, 2016: BMC Emergency Medicine
https://www.readbyqxmd.com/read/27777275/human-error-as-an-emergent-property-of-action-selection-and-task-place-holding
#12
Franklin P Tamborello, J Gregory Trafton
OBJECTIVE: A computational process model could explain how the dynamic interaction of human cognitive mechanisms produces each of multiple error types. BACKGROUND: With increasing capability and complexity of technological systems, the potential severity of consequences of human error is magnified. Interruption greatly increases people's error rates, as does the presence of other information to maintain in an active state. METHOD: The model executed as a software-instantiated Monte Carlo simulation...
October 1, 2016: Human Factors
https://www.readbyqxmd.com/read/27704138/toward-designing-information-display-to-support-critical-care-a-qualitative-contextual-evaluation-and-visioning-effort
#13
Melanie C Wright, Sherry Dunbar, Brekk C Macpherson, Eugene W Moretti, Guillherme Del Fiol, Jean Bolte, Jeffrey M Taekman, Noa Segall
OBJECTIVES: Electronic health information overload makes it difficult for providers to quickly find and interpret information to support care decisions. The purpose of this study was to better understand how clinicians use information in critical care to support the design of improved presentation of electronic health information. METHODS: We conducted a contextual analysis and visioning project. We used an eye-tracker to record 20 clinicians' information use activities in critical care settings...
October 5, 2016: Applied Clinical Informatics
https://www.readbyqxmd.com/read/27700251/what-s-in-a-transition-an-integrative-perspective-on-transitions-in-medical-education
#14
Jorie M Colbert-Getz, Steven Baumann, Kerri Shaffer, Sara Lamb, Janet E Lindsley, Robert Rainey, Kristin Randall, Danielle Roussel, Adam Stevenson, Anna T Cianciolo, Tyler Maines, Bridget O'Brien, Michael Westerman
This Conversation Starters article presents a selected research abstract from the 2016 Association of American Medical Colleges Western Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of three experts who shared their thoughts stimulated by the needs assessment study. These thoughts explore how the general theoretical mechanisms of transition may be integrated with cognitive load theory in order to design interventions and environments that foster transition...
October 2016: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/27654737/innovation-in-ethics-and-professionalism-course-early-experience-with-portfolio-workbook
#15
Muhammad Shahid Shamim, Nadeem Alam Zubairi, Mohamad Hesham Sayed, Zohair Jamil Gazzaz
OBJECTIVE: To analyse students' perception regarding the use of portfolio-workbook in ethics course. METHODS: This mixed method study was conducted at the King Abdulaziz University, Jeddah, Saudi Arabia, in 2014, and comprised fourth-year medical students. The "portfolio-workbook", developed on principles of cognitive load and guided learning theories, contained essential reading material. Learning sessions were also facilitated by teaching tools like role-plays, movie/video clips, vignettes, etc...
September 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27559450/development-and-psychometric-evaluation-of-nursing-low-back-pain-predictor-questionnaire-focusing-on-nurses-suffering-from-chronic-low-back-pain-in-iran
#16
Leila Ghadyani, Sedigheh Sadat Tavafian, Anoshirvan Kazemnejad, Joan Wagner
STUDY DESIGN: Development and psychometric evaluation. PURPOSE: Design and psychometric assessment of the Nursing Low Back Pain Predictor Questionnaire addressing nurses suffering from chronic low back pain in Iran. OVERVIEW OF LITERATURE: Low back pain is the most prevalent behavior-related health problem among nurses, and it needs to be assessed through a validated multi-factorial questionnaire, using the premises of the social cognitive theory...
August 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27553398/psychometric-properties-of-the-social-cognitive-theory-questionnaire-for-physical-activity-in-a-sample-of-iranian-adolescent-girl-students
#17
M S Ardestani, S Niknami, A Hidarnia, E Hajizadeh
This research examined the validity and reliability of a researcher-developed questionnaire based on Social Cognitive Theory (SCT) to assess the physical activity behaviour of Iranian adolescent girls (SCT-PAIAGS). Psychometric properties of the SCT-PAIAGS were assessed by determining its face validity, content and construct validity as well as its reliability. In order to evaluate factor structure, cross-sectional research was conducted on 400 high-school girls in Tehran. Content validity index, content validity ratio and impact score for the SCT-PAIAGS varied between 0...
August 18, 2016: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/27536226/increasing-working-memory-load-reduces-processing-of-cross-modal-task-irrelevant-stimuli-even-after-controlling-for-task-difficulty-and-executive-capacity
#18
Sharon S Simon, Erich S Tusch, Phillip J Holcomb, Kirk R Daffner
The classic account of the load theory (LT) of attention suggests that increasing cognitive load leads to greater processing of task-irrelevant stimuli due to competition for limited executive resource that reduces the ability to actively maintain current processing priorities. Studies testing this hypothesis have yielded widely divergent outcomes. The inconsistent results may, in part, be related to variability in executive capacity (EC) and task difficulty across subjects in different studies. Here, we used a cross-modal paradigm to investigate whether augmented working memory (WM) load leads to increased early distracter processing, and controlled for the potential confounders of EC and task difficulty...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27533319/cognitive-load-imposed-by-ultrasound-facilitated-teaching-does-not-adversely-affect-gross-anatomy-learning-outcomes
#19
Heather A Jamniczky, Darrel Cotton, Michael Paget, Qahir Ramji, Ryan Lenz, Kevin McLaughlin, Sylvain Coderre, Irene W Y Ma
Ultrasonography is increasingly used in medical education, but its impact on learning outcomes is unclear. Adding ultrasound may facilitate learning, but may also potentially overwhelm novice learners. Based upon the framework of cognitive load theory, this study seeks to evaluate the relationship between cognitive load associated with using ultrasound and learning outcomes. The use of ultrasound was hypothesized to facilitate learning in anatomy for 161 novice first-year medical students. Using linear regression analyses, the relationship between reported cognitive load on using ultrasound and learning outcomes as measured by anatomy laboratory examination scores four weeks after ultrasound-guided anatomy training was evaluated in consenting students...
August 17, 2016: Anatomical Sciences Education
https://www.readbyqxmd.com/read/27525701/the-theoretical-construction-of-a-classification-of-clinical-somatic-symptoms-in-psychosomatic-medicine-theory
#20
Fanmin Zeng, Xueli Sun, Bangxiang Yang, Hong Shen, Ling Liu
OBJECTIVE: This article adopts the perspective of psychosomatic medicine to present and test a theoretical model of the classification of clinical somatic symptoms. The theoretical model consists of four dimensions: emotional somatic symptoms, biological somatic symptoms, imaginative somatic symptoms, and cognitive somatic symptoms. METHOD: A clinical somatic symptom classification scale was developed according to the theoretical model. A total of 542 participants completed the clinical somatic symptoms classification scale...
2016: PloS One
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