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 63 for “"Tracking task"”.
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Some Effects of Varying Control-Display Relationships in a Discrete Tracking Task
Made available in DSpace on 2014-12-03T23:50:54Z (GMT). No. of bitstreams: 1 0019871.pdf: 4966132 bytes, checksum: 1072ff08705d2593bdcc0af5a2028c27 (MD5) Previous issue date: 1956
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A damped joystick : evaluation and testing using a two dimensional tracking task
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Evaluation of a supplementary auditory display in a dual axis compensatory tracking task.
Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics. Thesis. 1971. M.S.
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Variations in Control and Display Gain in a First Control Order Compensatory Manual Tracking Task
… of these two variables to the manual tracking performance of any HO conducting a compensatory tracking task while using a first control-order tracking system. Since the optimal level of control gain required for maximal manual control of a tracking device is system dependent, it may be …
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Peripheral Dynamic Visual Acuity Under Randomized Tracking Task Difficulty, Target Velocities, and Direction of Target Presentation
… 45, 50, 55 deg) as a between-subjects factor. Tracking Difficulty (monitor only, easiest, moderate, most difficult tracking levels), Landolt C Target Velocities (0.0, 4.88, 14.62, and 24.40 deg/s), and Target Direction ("F/R:" fixed or random direction of target appearance) were used as …
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The Effects of a Pathway-in-the-Sky Display on Performance of a Two Axis Tracking Task by Instrument Rated Pilots
… instrument rated pilot subjects on a two axis tracking task (an Instrument Landing System Approach) under three instrument display conditions: (1) conventional instruments (INST); (2) a Pathway-in-the-Sky (PITS) display; and (3) a combination of the two (BOTH). The primary hypothesis, that …
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Empirical Studies Concerning Aural Alerts for Cockpit Use Leading to an Aural Alerting Signal Categorization Scheme
… and then performed a sound identification task in conjunction with an automated and manual tracking task. Sound identification data revealed that subjects correctly identified the alerting set (i.e., major flight deck function) and urgency level associated with each of 12 aural alerts in …
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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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The Effect of Cockpit Noise on Aircraft Pilot Psychomotor Performance
… pilot psychomotor performance on a simulated tracking task. The performance of thirty-two participants was measured on a vertical and horizontal tracking task. In the control group, eight participants were used in a quiet condition. In the experimental group, eight participants were exposed to …
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The effect of perturbation warning on attention switching abilities during dual-task performance in young and older adults
… switching abilities in older adults during dual-tasking. Fifteen young and 16 older adults performed a tracking task while recovering their balance from a support surface translation. For half of the trials, an auditory warning was presented to inform participants of the upcoming translation. …
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Behavioral and Functional Brain Correlates of Developmental Coordination Disorder: A Case-Control Study
… of age) while they performed a 2-D visuo-motor tracking task.</p> <p>Relative to the control, the DCD child was clearly impaired on the behavioral metrics of fine motor control and showed significant activity (p < 0.001) in the occipital and frontal gyri, with less robust activations (p < 0.01) …
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Effects of seated posture on static strength, lower-body isometric muscle contractions, and manual tracking performance
… straining maneuvers (AGSMs); and (3) tracking performance for a manual tracking task. The purpose of this research is to determine if certain body postures significantly affect force generation, isometric muscle contractions, and tracking error. Subjects perform three different tasks …
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Characteristics of muscle co-contraction during isometric tracking
… and the performance of a simple manual tracking task. The study employed an isometric, zero order, pursuit tracking task with a laterally translating, periodic sine wave forcing function. The speed of the target was varied by altering the Frequency (3 levels) of the simple sine wave. The …
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Evaluation of a Display with Both Quickened and Status Information for Control of a Second Order System
… alone display.</p> <p>A horizontal axis pursuit tracking task was developed and controlled by eighteen participants with three display types: (1) a status alone display; (2) a quickened alone display; and (3) a status and quickened combined display.</p> <p>The primary hypothesis was only partly …
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Motor proficiency and preacademic learning in the young child.
… at-risk for learning difficulties; (2) a pursuit tracking task (Buck, Leonardo & Hyde, 1981); (3) number/counting concept items (Miller, 1990). Subjects were divided into high and low performance groups based on total MAP score, specified MAP spatial items and number/counting concept items, and …
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Effects of image distance and seat inclination on the line-of- sight angle
… angle (LOSA) was investigated for a simple tracking task. The distance from the eyes of the subject to the image was varied through the use of optical lenses. The subject was seated in a chair with 5 different back angles: 90 degrees, 111.6 degrees, 125 degrees, 158.5 degrees, and 177.1 …
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Problems With Auditory Alarms in Anesthesia and Tests of a Proposed Solution: Multimodal Multitask Performance With an Auditory Display
… taken, correlations among parameters, and task relevance. To test the model in the field, alarm thresholds (sensitivity levels) were manipulated on patient monitoring devices, and the effects on operator performance examined. An auditory display was proposed as a potential solution to the …
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The Integration of Information Relevant to a Manual Control Task
… by Wickens and Boles (1983) maintains that when task relevant information must be integrated by the operator, such information should be configured to maintain close proximity. Close proximity may be defined at the input stage as shared resources, or at the output stage as the same hand. To test …
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The effects of perturbation frequency, magnitude, and uncertainty during static and dynamic tracking on the estimated level of muscle co-contraction
… muscle forces during static and dynamic tracking tasks with perturbations. In the first experiment, perturbations to the isometric tracking were effected by sudden momentary changes in the gain. In the second experiment, perturbations to the tracking consisted of momentary changes in the …
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The ecological validity of prospective memory experimentation
… between performance in standard laboratory tasks versus naturalistic tasks has led to translational concerns to everyday life. Validity concerns surrounding laboratory PM tasks have been raised due to the lack of relationship between PM performance and measures of strategic monitoring, which …
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