Introduction: We used cognitive load theory to design the Queen's University Airway Mastery (QUMAC) pilot course to work toward reliable mastery of Emergency Airways Management elements in all participants.
Methods: We describe the process of designing QUMAC using 4-Component Instructional Design to harness the cognitive load theory as a learning tool. We evaluated the effectiveness of QUMAC using an outcome-based mixed-methods approach including Objective Structured Assessment of Technical Skills (OSATS) and 2 Objective Structured Clinical Examinations (OSCEs) at course completion using blinded expert video review. We also conducted semistructured interviews at course completion and after 6 months of independent practice. Interviews were analyzed thematically.
Results: Mean OSCE Global Performance Scores were 4.1 (±0.56) of 5 for both OSCE scores; and 4.0-4.4 (±0.48-0.89) on OSATS. At course completion, 4 themes were identified: Overall Experience with the Course, Facilitators of Performance, Recommendations, and Transfer to Practice. At 6 months of independent practice 5 themes emerged: Level of Confidence, Management of Cognitive Load, Persistence, Barriers to Application, and Recommendations.
Conclusions: All participants demonstrated a high degree of competence when assessed by OSCEs and majority did so with the OSATS. All noticed an increase in confidence and reduced cognitive load while managing airways. These persisted over 6 months of independent practice where the participants were actively managing airways as staff physicians in new workplaces. High performance expectations, automation, schemas, spaced repetition, and homework were the elements most associated with better performance and more confidence. Decreased cognitive load freed up resources for higher order thinking, while the overall sense of competence reduced the anxiety of going to work as a new emergency department staff.
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http://dx.doi.org/10.1097/SIH.0000000000000847 | DOI Listing |
IEEE Trans Vis Comput Graph
March 2025
Distractions in mixed reality (MR) environments can significantly influence user experience, affecting key factors such as presence, reaction time, cognitive load, and Break in Presence (BIP). Presence measures immersion, reaction time captures user responsiveness, cognitive load reflects mental effort, and BIP represents moments when attention shifts from the virtual to the real world, breaking immersion. While prior work has established that distractions impact these factors individually, the relationship between these constructs remains underexplored, particularly in MR environments where users engage with both real and virtual stimuli.
View Article and Find Full Text PDFPsychol Res
March 2025
School of Education, Guangzhou University, Guangzhou, 510006, People's Republic of China.
Cognitive offloading refers to the use of external tools to assist in memory processes.This study investigates the effects of item difficulty and value on cognitive offloading during a word-pair learning task, comparing children and young adults in a context where both cues coexist. In Experiment 1, we examined the impact of difficulty and value cues on cognitive offloading using a 2 (difficulty: easy vs.
View Article and Find Full Text PDFJ Neurol
March 2025
Centre for Neurology, Department of Neurodegenerative Diseases, and Hertie Institute for Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Str. 3, 72076, Tübingen, Germany.
Next-generation neurostimulators capable of running closed-loop adaptive deep brain stimulation (aDBS) are about to enter the clinical landscape for the treatment of Parkinson's disease. Already promising results using aDBS have been achieved for symptoms such as bradykinesia, rigidity and motor fluctuations. However, the heterogeneity of freezing of gait (FoG) with its wide range of clinical presentations and its exacerbation with cognitive and emotional load make it more difficult to predict and treat.
View Article and Find Full Text PDFEur J Nutr
March 2025
Nestlé Institute of Health Sciences, Nestlé Research, Lausanne, Switzerland.
Purpose: In the current study we evaluated a blend of ingredients containing mulberry leaf extract (to lower postprandial glucose of the evening meal), tryptophan (facilitator of the sleep initiation) to benefit sleep initiation and quality in adults with self-reported difficulties with sleep initiation.
Methods: Forty-three adults aged between 25 and 50 years enrolled in a randomized, crossover, double-blind, controlled trial. Participants received standardized meals with a glycemic load of 55 ± 10% and were assigned to receive treatment comprising a combination of mulberry leaf extract (750 mg), whey protein containing 120 mg tryptophan, zinc (1.
Free Neuropathol
January 2025
Department of Laboratory Medicine, St. Michael's Hospital, Unity Health & Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
There is considerable evidence for a role for metabolic dysregulation, including disordered purine nucleotide metabolism, in the pathogenesis of Alzheimer's disease (AD). Purine nucleotide synthesis in the brain is regulated with high fidelity to co-ordinate supply with demand. The assembly of some purine biosynthetic enzymes into linear filamentous aggregates called "cytoophidia" (Gk.
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