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 33 for “"mental effort"”.
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Psychophysiological measures of mental effort and emotion within user research
… combine simulator is used as a measure of mental effort. Due to both the natural complexity of operating a combine harvester and the relative lack of understanding of combine operators today, using psychophysiological measures within this environment serves to better understand the user …
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The Comparative Effects of Visual-Only Instruction versus Modality Principle Instruction on Algebraic Problem Accuracy and Perceived Mental Effort at Varying Levels of Task Complexity for Undergraduate Nursing Students
… formats on math accuracy and perceived mental effort during a series of math problems that varied in levels of complexity. The multimedia instruction results were compared against a traditional form of instruction using visual-only teaching materials.</p> <p>Few studies examine the …
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Biometric Analysis of Emotional Responses and Cognitive Effort to Stimuli in Euhydrated versus Hypohydrated States
… of a walking dehydration exercise in an environmental chamber at 35℃, participants viewed three stimuli, pre and post exercise, consisting of a video commercial, three still images, and live viewing of a carbohydrate-electrolyte drink while reporting perceptual measures. Arousal and feeling …
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Kecekapan pembelajaran berasaskan model contoh-masalah dalam pembelajaran teori litar
… knowledge acquisition, learning transfer, and mental effort. The effects of these variables on the learning efficiency are also explored. An experiment with pre-test and post-test design was carried out on students of the Diploma in Mechatronics Technology (DEM) program, who attended the …
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Applying Cognitive Load Theory to the Design of Online Learning.
… on both learning performance and perceptions of mental effort to see if there were any statistically significant differences. The study utilized a quasi-experimental posttest-only control group design contrasting modified and unmodified instructional lessons. Both groups were given a posttest to …
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Electrical Brain Activity and The Examinee's Level of Effort During Performance Validity Tasks
… Electroencephalography (QEEG) relates to mental effort during cognitive tasks. The purpose of this study was to investigate electrical brain activity, as measured by Peak (PK) frequency, on frontal brain areas (i.e. locations F3-F4) in individuals giving poor mental effort. Measures of …
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ACT-R Based Models For Learning Interactive Layouts
… Thought–Rational). I validate them against experimental data collected by other researchers. The first model is a simulation model that emulates the transition from novice to expert level in text entry. The model transcribes the presented English letters on a traditional phone keypad. It predicts …
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Differentiating Literacy Instruction for Digital Learners: The Effect of Multimedia Think-Aloud Worked Examples on Adolescent Analytical Reading Comprehension
… examples on analytical reading comprehension and mental effort, as well as on the student experience of studying complex passages from literary texts.</p> <p>In this experiment, an explanatory sequential mixed-methodology study, 34 sophomore English students were randomly assigned to either the …
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The NoGo-anteriorization and its relation to a central inhibitory mechanism
… represent higher response conflict and or higher mental effort in NoGo trials, and the NGA is not based on less cognitive response selection in NoGo trials. Therefore, the experiments support the assumption that the NGA is connected to an inhibitory mechanism in NoGo conditions.
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Evaluating cognitive workload in an AR environment using pupil area responses
… that timely spoken prompts can help regulate mental effort. Together, the work delivers (i) a validated, non-intrusive protocol for assessing workload in head-worn AR; (ii) clear evidence that pupil dynamics differ distinctly between learning and problem-solving, underscoring the importance of …
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Noise reduction schemes for digital hearing aids and their use for the hearing impaired
… most obvious benefits are reductions in the mental effort needed to listen to speech in noise. To assess this feature, a listening effort test is developed. For further subjective quality assessment of the algorithms, the method of paired comparisons in combination with the Bradley-Terry …
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Your brain on 9 volts : the specter and hype of electrical brain stimulation
… would be easier to process. In other words: less mental effort to learn something new, like recovering from a stroke or improving ski jump performance. Three primary communities are interested in tDCS today: do-it-yourselfers, clinical researchers, and neurotechnology companies. They want it for …
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The role of norepinephrine in arousal and attention: a human and rat study
… human study was to determine whether perceived mental effort during performance of an attentional task was reflected by physiological arousal. The second aim was to determine whether healthy individuals with high levels of behavioral impulsivity were physiologically hypo-aroused. The third aim …
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Effortful Emotion Regulation Strategy Use and Cognition: An Individual Differences Approach
… when the emotion regulation strategy required is mentally effortful (i.e., requires cognitive resources for success). The primary aim of this dissertation was to examine how expressive suppression (i.e., the inhibition of emotional responses and behavior) impacts cognitive processing speed …
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Improving behavioral decision making in operations and food safety management
… is reduced difficulty and hence lowered mental effort involved in the task. Chapter 2 and 3 focus on supply-chain and governance measures to improve food safety management. In Chapter 2, we employ Heckman's sample selection framework to investigate whether and how structural properties of …
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The role of daytime napping in sleepiness and cognitive function in 24-70 year olds /
… adults overall, may have reflected increased mental effort. Older adults had longer latencies and smaller amplitudes for several event-related potential components, and higher beta and gamma power. Following the longer nap, gamma power decreased for older adults, but increased for young …
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Multi-Objective Control for Physical and Cognitive Human-Exoskeleton Interaction
… the control objective, and then offload all effort required to complete the task to the autonomous controller. This reduction in effort is physical assistance directly towards completing the task, and should reduce the cognitive load the user experiences when completing the task. To test the …
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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 …
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A component task analysis of stereoscopic displays
… of viewing time, percent accuracy, and a generic mental effort rating. Results indicate that when certain display guidelines are not violated, stereoscopic display improves or at least maintains the overall level of viewer performance for most tasks. Furthermore, the results clearly indicate that …
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