Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 22 for “"Perceived workload"”.
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The effects of heat stress on operator perceived workload in tracking
… performance (root-mean-square error) and perceived workload (SWAT rating). However, in this study, humidity did not affect either measure significantly. This might be attributable to the upper bound of humidity (80% RH) used in this research. Therefore, research needs to be done above 80% …
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Noise and Time Pressure Effects on Situation Awareness and Aviation Maintenance Tasks
… Each participant's performance, SA level, and perceived workload were measured during maintenance tasks in four different environments. The results show that time pressure significantly affects AMTs' performance, SA, and perceived workload. However, the performance, SA, and perceived workload …
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THE RELATIONSHIP BETWEEN WORKLOAD AND COGNITIVE OVERLOAD: SELF-EFFICACY, PERFECTIONISM, AND RESILIENCE AS POTENTIAL MODERATORS
… whether there is a relationship between workload and cognitive overload with self-efficacy, perfectionism, and psychological resilience as possible moderators. Cognitive Load Theory states that individuals have a finite amount of working memory. When the working memory load has reached …
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An experimental investigation of sensory feedback methods within teleoperation robotic systems
… relation to overall completion time, error rate, perceived workload (using NASA-TLX) and frustration. A 24 participant study is presented, with results demonstrating no significant findings in relation to the reduction of task completion time and error rate with the additional feedback systems. …
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Effects of Visibility and Alarm Modality on Workload, Trust in Automation, Situation Awareness, and Driver Performance
… have a greater effect on driver performance, perceived workload, system trust, and situation awareness (SA). Sixty-three undergraduate students from Old Dominion University participated in this study. Participants were asked to complete two simulated driving sessions along with Motion Sickness …
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The e-MedTable: Development and testing of an electronic collaborative tool to support medication scheduling
… performance (solution accuracy and time), perceived workload, quality of collaboration, and usability. Participants created more accurate medication schedules when using the MedTable rather than the Medcard. The two structured tools reduced perceived workload and had higher usability than …
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Ergonomics of Total Knee Arthroplasty
… is unclear. We compared biomechanical strain and workload during conventional versus robotic-assisted TKA. Methods Two surgeons and two scrub nurses each performed conventional and robotic TKA (three cases per modality using VELYS, ROSA, and CORI◊). Wearable sensors recorded posture and …
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Increase Driving Situation Awareness and In-vehicle Gesture-based Menu Navigation Accuracy with Heads-Up Display
… Display (HDD) in participants’ preference, perceived workload, level 1 situation awareness, and secondary-task performance. However, to achieve this, the participants compensated by having poor driving performance and relatively longer visual distraction. This thesis will provide directions …
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Small Unmanned Aircraft Systems: Operator Workload and Situation Awareness Utilizing First Person View Techniques
… the NAS would have an effect on the operator’s workload and if FPV techniques affect the operator’s Level 1 situation awareness (SA). More specifically, this study examined sUAS operator workload and Level 1 SA while using three visual acuity techniques: visual-line-of-sight, FPV with a 21-in. …
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Effects of Human Emotions, Robot Reliability, and Team Hierarchy on Human-Robot Interaction
… robot, Pepper. Additionally, user perceptions, perceived workload, and task performance were also measured in the dissertation. The experimental setting and procedures for the three studies were similar. To induce participants' emotions, they were asked to write down their emotional experiences …
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Exploring the Effects of Language on Angry Drivers' Situation Awareness, Driving Performance, and Subjective Perception
… agents over the other conditions and the perceived workload was higher in the no-agent condition than the native agent condition. Drivers also expressed the need to control the state of the in-vehicle agent. The study results have practical design implications and the results are expected …
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Exploring Visual and Haptic Feedback Systems on User Performance with a Hand-Held Robot
… provide insufficient resolution, increasing user workload. Visual feedback, by contrast, is more commonly used and offers greater versatility and precision. This study compared the impact of visual feedback (a color-changing LED light strip) and haptic feedback (vibrations in a controller) on user …
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Effects of Time Pressure and Mental Workload on Physiological Risk Factors for Upper Extremity Musculoskeletal Disorders While Typing
… the effects of two psychosocial factors, mental workload and time pressure, on perceived workload and physiological reactions of the lower arm and wrist during typing activity by measuring muscle activation patterns, wrist posture and movement, key strike forces, and subjective assessments of …
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Are Groote Schuur Hospital anaesthesiologist burnt out? A cross-sectional study of prevalence and risk
… survey showed that respondents found their workload inappropriate. However, responses for the categories of Control, Reward, Community, Fairness and Values were all in the acceptable range. Conclusion: While the overall rate of Burnout was low, the majority of respondents were at risk of …
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Novel In-Vehicle Gesture Interactions: Design and Evaluation of Auditory Displays and Menu Generation Interfaces
… a decrease in off-road glances and an improved perceived workload. However, the design of auditory displays was not fully investigated. This thesis presents directional research in the design of auditory displays for air-gesture IVIS through two dual-task experiments of driving a simulator and …
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Experimental Evaluation of Merged-View Systems and VR-Based Reconstruction Approaches for Enhanced Mining Vehicle Teleoperation
… Load Index (NASA-TLX), a widely used subjective workload assessment tool, indicated a 27 % reduction in perceived workload. Regression-based sensitivity analysis showed that gaze entropy was the strongest predictor of efficiency in the multi-view condition, whereas fixation duration dominated …
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Improving Situation Awareness (SA) and Performance: The Role of the Three Levels of SA and SA-Oriented Interventions to Drive Effective Emergency Response
… can improve SA and performance and reduce workload. The first study in this dissertation identified the goals, sub-goals, decisions, and information requirements for firefighters to build SA during six types of fire (house fire, vehicle fire, and aircraft fire) and non-fire incidents …
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Community Pharmacists' Attitudes Toward An Expanded Class Of Nonprescription Drugs
… practicing pharmacy, position in the pharmacy, perceived workload, and pharmacy association affiliation; and 3) determine which drugs community pharmacists believe would be acceptable additions to an expanded definition of nonprescription drugs under the FDA’s proposed "new paradigm". Methods: …
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Effects of stimulus class on short-term memory workload in complex information display formats
… methods to reduce aircraft crew member cognitive workload (CWL) by reducing short-term memory (STM) demand. Two experiments qualitatively and quantitatively compared memory loading as a function of stimulus class. Experiment 1 employed a dual-task paradigm where the primary task was compensatory …
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Human Computer Interaction Design for Assisted Bridge Inspections via Augmented Reality
… in significant reductions in inspection time and perceived workload, but also significant increases in the amount of measurement error. The latter result is strongly associated with a lack of field robustness of CV methods, which can under-perform if conditions are not ideal. In general, hybrid …
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