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 8 of 8 for “"subjective workload assessment"”.
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Processing Phenomena and the Dissociation Between Subjective and Objective Workload Measures (Cognition, Automaticity, Verbal Reports)
Causes of dissociation between subjective workload assessments and objective performance were investigated. A Sternberg memory search task was utilized. Sternberg task configurations varied in the automaticity of performance, stimulus presentation rate, discernability of stimuli, and the value of …
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The effects of heat stress on operator perceived workload in tracking
… (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% RH to …
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Experimental Evaluation of Merged-View Systems and VR-Based Reconstruction Approaches for Enhanced Mining Vehicle Teleoperation
… NASA Task 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 …
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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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The Effects of Symbol Size and Workload Level on Status Awareness of Unmanned Ground Vehicles
… time) were measured. Participants were asked for Subjective Workload Assessment Technique (SWAT) ratings for each combination of symbol size and number of distracter symbols. Errors committed while attempting to touch the correct symbol were counted. Participants made very few errors attempting to …
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Development of time and workload methodologies for Micro Saint models of visual display and control systems
… examined the incorporation of a cognitive workload metric known as the Subjective Workload Assessment Technique (SWAT) into the Micro Saint model. The dissertation was conducted in three phases. In the first phase, a task analysis was performed to identify operator task and hardware …
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An investigation on subjective assessments of workload and postural stability under conditions of joint mental and physical demands
Workload is defined as the cost incurred by an individual, given their capacities, while achieving a particular level of performance on a task with specific demands. Demands of a task or combination of tasks may include maintaining postural stability, executing physical actions, and/or performing …
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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 …