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 72 for “"secondary task"”.
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The Effects Of Secondary Task Demandon The Assessment Of Threat
… tested whether observers engaged in a dual-task paradigm perceived a greater amount of threat from target stimuli than they did when they were engaged in the threat task alone. The first experiment revealed that observers rated targets as more threatening when they were engaged in the …
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An On-Road Assessment of Driver Secondary Task Engagement and Performance during Assisted & Automated Driving
… visual or attentional resources on the driving task or environment, drivers are allowed to perform secondary tasks (i.e., non-driving related tasks (NDRTs)). Given that drivers will freely choose what types of tasks they do during CAD it is important to build an understanding of whether drivers …
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Secondary task induced engagement and dynamic change of attention - the facilitating effect of secondary stimuli on media task performance
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Assessing the Effectiveness of an Interval Estimation and a Visual-Spatial Secondary Task as Measures of Mental Workload During Laparoscopy
… goal of the present study was to compare two secondary workload tasks, specifically a time interval estimation and visual-spatial task, to determine which of these is most appropriate for the assessment of laparoscopic mental workload. Participants performed a peg transfer task in two …
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Simulator study of the effects of cruise control, secondary task, and velocity-related measures on driver drowsiness and drowsiness detection
… the effects of cruise control and an auditory secondary task on the level of drowsiness and driving performance were examined. Twelve volunteers from the Blacksburg, Virginia area were used as subjects. In the early morning hours after sleep deprivation, subjects drove a moving base automobile …
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The use of auditory prompts to direct drivers' attention to an in-vehicle visual display in a dual-task simulated commercial truck environment
… navigational information, presented as a secondary task in commercial truck cab noise. Dual-task (driving in addition to performing a secondary task) and secondary task scenarios were presented, and acquisition time and accuracy on the secondary task were measured under three prompt types, …
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The measurement and comparison of relative workloads under several driving conditions using a simulator
A secondary task measure was used to evaluate the effects of various automobile handling characteristics on driver workload. The study was performed using the VPI & SU driving simulator, a variable speed random number generator and display, plus other control and recording equipment. Workload …
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Effects of In-Vehicle Information Systems (IVIS) Tasks on the Information Processing Demands of a Commercial Vehicle Operations (CVO) Driver
… driver can process without hindering the primary task of driving. The second goal was to collect conventional secondary task data for CVO driving performance. An on-the-road experiment was performed with the help of 12 truck drivers. Type of task, presentation format, information density, and age …
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Comparing the Effects of Mental Workload Between Visual and Auditory Secondary Tasks During Laparoscopy
… and subjective workload on a visual-spatial secondary task with an auditory-spatial analog when paired with visual-spatial laparoscopic primary tasks. Two primary tasks were performed with a laparoscopic box trainer: a high workload task that consisted of transferring rings from one peg to …
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Evaluation of sleepiness in space robotics task performance and discussing sleep with high school students in a museum
… on astronauts and adolescents in their everyday tasks. The first part describes the results of an experiment assessing the effect of sleepiness and workload on performance in simulated space telerobotics tasks. The second part describes the results of a forum discussion with high school students …
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The Implications of Varying Levels of Task Automation on Workload
… the effects of the addition of automation on task workload. Utilizing a modified secondary task paradigm, the workload which was imposed by three different levels of automation, selected from the continuum of automation on each of two primary tasks, was assessed by comparing performance on a …
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Effects of fatigue on simulated space telerobotics performance : a preliminary study analysis
… must perform mission critical space telerobotics tasks consistently despite restricted and slam shifted sleep and circadian schedules and long session durations, which all potentially degrade cognitive function, response time, and attention. A ground laboratory experiment was designed to 1) …
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Novel In-Vehicle Gesture Interactions: Design and Evaluation of Auditory Displays and Menu Generation Interfaces
… displays for air-gesture IVIS through two dual-task experiments of driving a simulator and air-gesture menu navigation. Experiment 1 with 32 participants employed a 2x4 mixed-model design, and explored the effect of four auditory display conditions (auditory icon, earcon, spearcon, and no-sound) …
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The Effect of Communication Style on Task Performance and Mental Workload Using Wearable Computers
… to simultaneously perform other non-computer tasks. Thirty subjects were randomly assigned to using one of five software versions (n = 6), each of which utilized a unique communication style. The mental workload associated with operating each version was assessed by monitoring the performance …
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The Effect of Directional Auditory Cues on Driver Performance in a Simulated Truck Cab Environment
… prompted to select highway numbers on a side-task display. Prompts were presented visually or aurally. Auditory prompts were presented either diotically (both ears simultaneously) or directionally (to either the left or right ear). The search task varied in map density and timing of the …
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Effects of Aging on Behavioral Measures of Listening Effort
… hearing while completing a speech in noise task. This study also examined some methodological issues for the measurement of listening effort. The most common means of behavioral assessment of listening effort is through use of a dual-task paradigm (DTP), whereby participants perform a …
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Teaching the Unknowable: Does Analogy Lead to Implicit Skill Acquisition in a Dart-Throwing Task?
… implicit (while performing a distracting secondary task), and analogy (while imagining an analogous physical image). Each participant threw 6 blocks of 40 darts, receiving repeated instructions before each block. The next day (Day 2), participants were tested for retention and for transfer …
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Where was my mind?: The role of perceptual load on mind wandering and consumer memory for advertising content
… modern world, consumers often engage in multiple tasks at the same time in the hope of effectively managing their time, increasing the palatability of boring tasks, or to achieve several goals simultaneously. Most studies in multitasking show that when people perform two tasks simultaneously, one …
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The Effects of Cognitive Executive Load on Driving Crashes and Near-Crashes
… studies 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 …
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Falls risk and driving performance in older adults
Attention plays an important role in real-world tasks such as driving. Safe driving relies on the ability to allocate attention and perform multiple tasks concurrently. Declines in executive function and dual-task performance have been related to falls in older adults, and recent research suggests …
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