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 21 for “"task demand"”.
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Warning Compliance: Effects Of Stress And Working Memory
… warning presentation and retention in a dual-task paradigm in a simulated military environment under various task-induced stress levels. It was also intended to determine what role working memory played in the mode of warning presentation that resulted in the highest retention and subsequent …
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Oculomotor and electrophysiological markers of cognitive distraction during low-level and complex visual tasks
… performance caused by secondary cognitive task demand are to some extent due to cognitive load interfering with processes of alerting, orienting, inhibitory control and visual search; 3) what elements of secondary cognitive tasks have the greatest impact on hazard perception performance; …
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Walking and talking in multiple sclerosis: an investigation of cognitive-motor dual tasking and clinical research portfolio
… the effects of performing a concurrent cognitive task when walking in MS and determine the effects of task demand on dual-task performance. Eighteen MS participants and 18 healthy controls took part. Participants completed walking and cognitive tasks under single and dual task conditions. MS …
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Age-Related Changes in the Plasticity of Neural Regions That Control the Functional Field of View
… plasticity that allows training in the FFOV task to improve attentional function in older and younger adults. In chapter one, we discussed the neural systems that control the FFOV. We found that the same dual task conditions that produce a reduced FFOV also produce relatively weak …
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Insights into brain networks from functional MRI and graph analysis during and following attentional demand
… environment and to adjust behaviour to current task demands. However, if a task demand is high, the flexibility and capability of the brain to adapt is challenged. The studies of the current thesis aimed to shed light on neural mechanisms that are involved in adaptive processes of the brain in …
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A framework for estimating difficulty and exclusion from tasks of everyday living
… design research and practice seeks to make tasks of everyday living more accessible for everyone. Identifying Performance Shaping Factors (PSFs) and assessing their impact on performance is central to estimating difficulty and potential exclusion from everyday tasks. The analysis of human …
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Investigating Modular Structure and Function in Biology: from Immunology to Cognition
… modularity, flexibility of module composition, task demand, and performance provide a versatile theoretical framework that can tackle a diverse set of problems. Under this generalized theoretical model, I have studied a broad range of biological systems: the CRISPR-Cas immune mechanism in …
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The Effect of Interruptions During a Laparoscopy Skills Training Task
… during a laparoscopic skills training task affected task performance. Undergraduate students completed a task that required them to pick up and transfer colored objects in a specific, predetermined sequence. The number of colored objects in the sequence was varied to produce three …
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Electrophysiological systems underlying human domain-general cognition and selective attention
… that enable flexible cognitive processing across tasks. This thesis investigates the contributions of electrophysiological systems—including oscillatory, aperiodic, and evoked responses—to these processes, using a combination of cutting-edge techniques such as MEG/EEG, MEG-fMRI fusion, and …
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Categorical and coordinate visuospatial processing in younger and older adults
… with older age. In addition, the importance of task demand and the underlying cognitive processes involved in categorical and coordinate VS judgements were also examined. In every experiment participants were faster and more accurate to make categorical visuospatial judgements than coordinate …
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Predicting Inattentional Blindness with Pupillary Response in a Simulated Flight Task
… unexpected event may help improve safety during task performance. Unfortunately, it is difficult to predict when such failures might occur. The current study was a secondary data analysis of data collected in the Human and Autonomous Vehicle Systems Laboratory at NASA Langley Research Center. …
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The nature of boredom
… is assumed to progressively decrease as a task becomes more and more familiar. Natural inertia in the allocation system results in temporary misalignments between allocated resource and task-demand. It is these misalignments that cause boredtype behaviour. The awareness of these …
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Structure of force as a predictor of oral motor learning in healthy younger and older adults
… to learning of oral motor continuous fine force tasks using a pursuit tracking paradigm. It investigated how error and the temporal and frequency structure of force during baseline performance predicted oral motor learning in healthy younger and older adults, drawing on dynamical systems …
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Theoretical Principles for Information-Efficient Reasoning under Uncertainty
… effective actions that solve a wide range of tasks using limited experience, operating with modest processing capacity, and consuming less energy than a lightbulb. Neuroscientific research suggests that to achieve this remarkable performance, the brain not only reasons about external factors …
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On the flexible nature of the relationship between attention and active memory representations
… these systems play and ignoring the role of task demands which include differences in factors such as context, task goals, or stimulus and response modalities. This restricted view has far-reaching consequences across many topics central to cognitive psychology such as (1) attention’s role in …
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Effects of depth cues on depth judgements using a field-sequential stereoscopic CRT display
… a minor role in the relative depth judgment task. The second experiment was conducted to investigate further the subjective value of the various depth cues. Participants rated subjective image quality (quality of depth) rather than making rapid relative depth judgements. As anticipated, the …
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Is cue-based memory retrieval 'good-enough'?: Agreement, comprehension, and implicit prosody in native and bilingual speakers of English
… more on heuristics and templates whenever the task allows, and may be required to rely on this fallback route when task demand is high. In the proposed GC model, cue-based memory retrieval (CBMR) is the instantiation of the complete syntactic route for agreement and long-distance dependencies …
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Factors affecting student teachers' capacity for flow experience
… model, as well as to distribute eight teaching tasks within these four quadrants. Qualitative methods were employed to guide interpretation of patterns observed in the quantitative data. The information generated by the rating scale indicated that the perceived challenge levels of task demand …
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Mind wandering during everyday driving
… random, but varies systematically in relation to task demand and crash risk on familiar urban roads. Overall, results from the five studies showed that mind wandering is ubiquitous during everyday driving. Drivers focus on aspects of the driving task frequently, but typically briefly, in response …
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Multisensory Integration in adults with Attention-Deficit/Hyperactivity Disorder
… and superior temporal sulcus. Depending on the task demands and the complexity of the MI-stimuli, the attentional resources that are allocated are varying. While, salient, relative simply multimodal stimuli are integrated rather early - so-called bottom-up processing, more complex stimuli are …
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