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.
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Showing 1 to 20 of 39 for “"task load"”.
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Modeling operator performance in low task load supervisory domains
… combination can potentially lower operators' workload to dangerously low levels, causing boredom, lack of vigilance, fatigue, and performance decrements. As more systems are automated and placed under human supervision, this problem will become more prevalent in the future. To mitigate the problem …
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Fixation Patterns of Driving Scenes as a Function of Task Load and Task Goal
… of instructions and while completing a secondary task.</p> <p>This dissertation aimed to study where drivers were looking under various conditions to see how eye movement patterns changed in relation to different task instructions and task load. The results suggested that task instruction highly …
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The Effect of Task Load, Automation Reliability, and Environment Complexity on UAV Supervisory Control Performance
… operators (usually an air vehicle operator, payload operator, and mission commander), the proliferation of UAVs has created a manpower burden within the U.S. military. Fortunately, simultaneous advances in UAV automation have enabled a switch from direct control to supervisory control; future …
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American and Chinese Personality Traits and Task Load in Simulated Flight Crews: Individual and Team Level Effects
… flight teams requires limiting unnecessary pilot task load. This study examined American and Chinese simulated flight crews. Factors believed to affect cockpit interpersonal dynamics and subsequent crew task loads were pilot personality and nationality. Pilot personality, team personality …
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Exploring the Effects of Task Priority on Attention Allocation and Trust Towards Imperfect Automation: A Flight Simulator Study
<p>The present study examined the effect of task priority and task load on attention allocation and automation trust in a multitasking flight simulator platform. Previous research demonstrated that, participants made less fixations and reported lower levels of trust towards the automation in the …
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Preliminary design of a social asymmetric virtual reality upper-limb exergame for individuals with dementia utilizing insights from caregivers
This thesis investigates the usability, task load, cooperative performance, and social presence effects of an asymmetric VR game for upper limb activity in the context of elderly care from the perspective of caregivers. The study presented participants with three different play modes: Cooperative …
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Modeling human attention and performance in automated environments with low task loading
… has the benefit of reducing human operators' workload. By leveraging the power of computers and information technology, the work of human operators is becoming easier. However, when the workload is too low but the human is required to be present either by regulation or due to limitations of …
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The Effects of Cognitive Executive Load on Driving Crashes and Near-Crashes
… have shown that visual and manual secondary tasks increase driving crash risk. With the increasing use of infotainment systems in vehicles, secondary tasks requiring cognitive executive demand may increase crash risk, especially for young and older drivers. Naturalistic driving data were …
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From objects to action: a neuropsychological analysis
… effects of the presence of distractors and of task load on the performance of everyday life tasks, comparing a patient with ADS and controls operating with a task load (Chapter 2). The data indicate that controls and patients with ADS may suffer different demands. The role of the task schema on …
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Evaluating Eye-Tracking Multimodal Interactions in Virtual Reality
… to compare the interaction time, accuracy, and task load associated with eye tracking, distance-based hand tracking, and close-up grabbing during interactions with 3D objects. A user study was conducted to compare the three interaction methods. The findings provide evidence that eye-tracking …
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Neural Underpinnings of Walking Under Cognitive and Sensory Load: A Mobile Brain/Body Imaging Approach
<p>Dual-task walking studies, in which individuals engage in an attentionally-demanding task while walking, have provided indirect evidence via behavioral and biomechanical measures, of the recruitment of higher-level cortical resources during gait. Additionally, recent EEG and imaging (PET, fNIRS) …
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Incorporation of Traffic Collision Alert System (TCAS) Advisories on Heads-up Displays: Enhanced Pilot Response
… TCAS displays had on pilot response and workload. Pilot response was evaluated by: (a) response time to a traffic advisory, and (b) number of missed traffic alerts. Workload assessment was accomplished in accordance with NASA's Task Load Index (TLX). Subjects were all licensed pilots with a …
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Ergonomics of Total Knee Arthroplasty
… demands. Robotic platforms may alter this load, but their ergonomic impact 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 …
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ASSESSING THE USABILITY OF MONTEREY PHOENIX SOFTWARE
… present participants with a simple modeling task using MP, and capture feedback from users at the completion of the protocol. Participant feedback produced data for use in the calculation of System Usability Scale scores, Net Promoter Scores, and the NASA Task Load Index, which are …
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The Effectiveness of Augmented Reality for Astronauts on Lunar Missions: An Analog Study
… view to assist with completion of a variety of tasks. Unfortunately, only a little research and development has begun in the space sector for astronauts using these head-up displays. Future lunar missions could incorporate augmented reality for astronauts to ease task load and improve accuracy. …
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Effects of Visibility and Alarm Modality on Workload, Trust in Automation, Situation Awareness, and Driver Performance
… 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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A Quasi-Experimental Approach for Assessing Air Traffic Controller Workload
… its effect on the cognitive effort and physical task requirements imposed on the controller. The various workload methodologies and techniques were reviewed for specific workload techniques applicable to the operational environment when resources, such as time and funding, are lacking for a …
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An Investigation into Locomotion Techniques for Use in Virtual Reality Games
… Usability Scale Questionnaires, and overall workload measured from the NASA Task-Load Index Questionnaire. We also found that RSRT and World Grab were least preferred overall and performed measurably worse in terms of time, number of falls in a section designed to measure precision and accuracy, …
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The Effects of System Reliability and Time Pressure on Unoccupied Aircraft Systems Operator Performance and Mental Workload
… systems operator performance and mental workload. Twenty-four undergraduate and graduate students, male and female, from <a href="http://search.proquest.com.ezproxy.libproxy.db.erau.edu/pqdtglobal/docview/1459463073/abstract/41EF8A13668844C8PQ/1?accountid=27203#">Embry-Riddle Aeronautical …
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The Effect of Crosswind and Turbulence in Mental Workload and Pilot Tracking Performance
… effect of crosswind and turbulence on mental workload and pilot tracking performance. Based on previous research, it was believed that as the amount of crosswind and turbulence is increased, mental workload would increase and tracking performance would decrease. The objective was to estimate the …
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