Publication statistics
Pub. period:1988-2012
Pub. count:12
Number of co-authors:31
Co-authors
Number of publications with 3 favourite co-authors:
Kim-Phuong L. Vu:4Vernol Battiste:4Kim-Phuong Vu:2 Productive colleagues
Thomas Z. Strybel's 3 most productive colleagues in number of publications:
Robert W. Proctor:22Kim-Phuong L. Vu:15Vernol Battiste:10
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Thomas Z. Strybel
Has also published under the name of:
"T. Z. Strybel"
Publications by Thomas Z. Strybel (bibliography)
Vu, Kim-Phuong L., Silva, Hector, Ziccardi, Jason, Morgan, Corey A., Morales, Gregory, Grigoleit, Tristan, Lee, Samuel, Kiken, Ariana, Strybel, Thomas Z. and Battiste, Vernol (2012): How Does Reliance on Automated Tools During Learning Influence Students' Air Traffic Management Skills When the Tools Fail?. In: Proceedings of the Human Factors and Ergonomics Society 2012 Annual Meeting 2012. pp. 16-20.
“Research on potential NextGen technology has shown that advanced conflict detection and resolution tools can increase air traffic controllers' performance and decrease their workload. However, use of NextGen tools can change the way controllers represent and manage their sector. Kraut et al. (2011) found that when NextGen tools failed in a simulated environment, experienced controllers were able to recover from the error and revert back to manual air traffic management techniques. One question is whether students would be able to recover from failures of technology if they were trained to rely on NextGen tools during acquisition of their air traffic management skills. To answer this question, we performed a simulation in which students were trained over 16 weeks to manage a sector consisting of both NextGen equipped and unequipped aircraft. Reliance on manual skills versus NextGen tools was induced by varying the percentage of equipped aircraft, being mostly”
© All rights reserved Vu et al. and/or Human Factors and Ergonomics Society
Ngo, Mary Kim, Vu, Kim-Phuong L., Thorpe, Elaine, Battiste, Vernol and Strybel, Thomas Z. (2012): Intuitiveness of Symbol Features for Air Traffic Management. In: Proceedings of the Human Factors and Ergonomics Society 2012 Annual Meeting 2012. pp. 1804-1808.
“We present the results of two online surveys asking participants to indicate what type of air traffic information might be conveyed by a number of symbols and symbol features (color, fill, text, and shape). The results of this initial study suggest that the well-developed concepts of ownership, altitude, and trajectory are readily associated with certain symbol features, while the relatively novel concept of equipage was not clearly associated with any specific symbol feature.”
© All rights reserved Ngo et al. and/or Human Factors and Ergonomics Society
Dao, Arik-Quang V., Lachter, Joel, Battiste, Vernol, Brandt, Summer L., Vu, Kim-Phuong, Strybel, Thomas Z., Ho, Nhut, Martin, Patrick and Johnson, Walter W. (2010): Automated Spacing Support Tools for Interval Management Operations during Continuous Descent Approaches. In: Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting 2010. pp. 21-25.
“In this study, pilots were asked to achieve a specific time in trail while flying an arrival into Louisville International airport. Weather shortly before the start of the descent added variability to the initial intervals. A spacing tool calculated airspeeds intended to achieve the desired time in trail at the final approach fix. Pilots were exposed to four experimental conditions which varied how strictly the pilots were told to follow these speeds and whether speeds had to be entered into the autopilot manually. Giving the pilots more discretion had little effect on the final spacing interval. However, pilots required to enter speeds into the autopilot manually did not effectively manage their airplane's energy resulting in less accurate performance. While these results may not always generalize to alternative spacing implementations, one should not assume pilots manually closing the loop on automated commands can perform as well as a fully automated system.”
© All rights reserved Dao et al. and/or HFES
Ligda, Sarah V., Dao, Arik-Quang V., Vu, Kim-Phuong, Strybel, Thomas Z., Battiste, Vernol and Johnson, Walter W. (2010): Impact of Conflict Avoidance Responsibility Allocation on Pilot Workload in a Distributed Air Traffic Management System. In: Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting 2010. pp. 55-59.
“Pilot workload was examined during simulated flights requiring flight deck-based merging and spacing while avoiding weather. Pilots used flight deck tools to avoid convective weather and space behind a lead aircraft during an arrival into Louisville International airport. Three conflict avoidance management concepts were studied: pilot, controller or automation primarily responsible. A modified Air Traffic Workload Input Technique (ATWIT) metric showed highest workload during the approach phase of flight and lowest during the en-route phase of flight (before deviating for weather). In general, the modified ATWIT was shown to be a valid and reliable workload measure, providing more detailed information than post-run subjective workload metrics. The trend across multiple workload metrics revealed lowest workload when pilots had both conflict alerting and responsibility of the three concepts, while all objective and subjective measures showed highest workload when pilots had no conflict alerting or responsibility. This suggests that pilot workload was not tied primarily to responsibility for resolving conflicts, but to gaining and/or maintaining situation awareness when conflict alerting is unavailable.”
© All rights reserved Ligda et al. and/or HFES
Strybel, Thomas Z., Vu, Kim-Phuong L., Dwyer, John P., Kraft, Jerome, Ngo, Thuan K., Chambers, Vanessa and Garcia, Fredrick P. (2007): Predicting Perceived Situation Awareness of Low Altitude Aircraft in Terminal Airspace Using Probe Questions. In: Jacko, Julie A. (ed.) HCI International 2007 - 12th International Conference - Part I July 22-27, 2007, Beijing, China. pp. 939-948.
Strybel, Thomas Z. and Guettler, D. L. (2001): The Effectiveness of Visual vs. Auditory Cues in Visual Search Performance: Implications for the Design of Virtual Environments. In: Proceedings of the Ninth International Conference on Human-Computer Interaction 2001. pp. 1363-1367.
Vu, Kim-Phuong L., Hanley, Gerard L., Strybel, Thomas Z. and Proctor, Robert W. (2000): Metacognitive Processes in Human-Computer Interaction: Self-Assessments of Knowledge as Predictors of Computer Expertise. In International Journal of Human-Computer Interaction, 12 (1) pp. 43-71.
“Metacognition, a person's knowledge of her or his own cognitive processes, is a concept that can be applied to many areas of human-computer interaction. This article reviews the state of contemporary knowledge regarding metacognition and describes implications for the domain of human-computer interaction. A conceptual framework is presented that distinguishes monitoring and regulation processes of metacognition. One aspect of metacognition, self-evaluation of knowledge, was investigated for a word processing application as an illustration. An experiment was conducted to evaluate which of four methods of self-assessment of expertise was the best predictor of declarative knowledge (accuracy and completeness of descriptions on how to perform a task). In addition, the experiment examined whether classifying users based on self-reported estimates of expertise would produce differences in their declarative descriptions. Results showed that individuals' ratings of their overall knowledge were better predictors than were estimations of frequency of use, as would be expected from the literature on metacognitive monitoring. In addition, classifying users based on their self-ratings of expertise showed differences in accuracy of declarative knowledge and strategy chosen to perform a task. Experts were more accurate in their descriptions of how to complete a task compared to novices and used more complex strategies to complete hard tasks.”
© All rights reserved Vu et al. and/or Lawrence Erlbaum Associates
Strybel, Thomas Z. (1995): The Benefits of Auditory Spatial Information in Visual Processing. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. p. 103.
“Techniques for the production of externalized, "3-dimensional" sound images for acoustic signals presented via headphone were developed in the past decade. These 3-D sound systems simulate both interaural time and intensity cues, and cues based on the action of the pinnae on incoming sound sources (e.g. Wenzel, Wightman and Foster, 1988). It has been anticipated that these 3-D sound systems would be useful in the cockpit and other work settings because they provide a natural method directing an operator to some event in the environment. This symposium is a progress report on research which has either examined potential applications of 3-D sound systems in the workplace, or attempted to understand how auditory spatial cues direct visual attention. Researchers at NASA Ames Research Center and Wright Patterson Air Force Base have identified cockpit tasks that can benefit from auditory spatial cueing. Some of these tasks include gate identification, blunder avoidance, and traffic identification of approaching and receding targets. The benefits of audio spatial cueing are usually measured by determining the reduction in search latency that is realized when searching for targets with and without auditory spatial cues. These benefits can be explained by the findings that both simple detection and identification times are faster and more constant across the frontal hemifield when auditory spatial cues are presented with the target. Furthermore, for sounds presented in the central visual field, auditory spatial cues can either supplement or substitute for abrupt visual onsets in directing visual attention. Wenzel, E. M., Wightman, F. L. and Foster, S. H. (1988). A virtual display system for conveying three-dimensional acoustic information. Proceedings of the Human Factors Society 32nd Annual Meeting, 86-90.”
© All rights reserved Strybel and/or Human Factors Society
Strybel, Thomas Z., Boucher, Jan M., Fujawa, Greg E. and Volp, Craig S. (1995): Auditory Spatial Cueing in Visual Search Tasks: Effects of Amplitude, Contrast, and Duration. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 109-113.
“The effectiveness of auditory spatial cues in visual search performance was examined in three experiments. Auditory spatial cues are more effective than abrupt visual onsets when the target appears in the peripheral visual field or when the contrast of the target is degraded. The duration of the auditory spatial cue did not affect search performance.”
© All rights reserved Strybel et al. and/or Human Factors Society
Taylor, Susan A. and Strybel, Thomas Z. (1993): The Effects of Obstructions on Arm Movement Time during Reach and Positioning Movements of a Simulated Maintenance Task. In: Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting 1993. pp. 798-802.
“The purpose of this study was to investigate the fundamental issue of how an obstruction affects movement time during reach and positioning components of a simulated maintenance task. Eight obstruction locations for two target locations provided the experimental manipulation for the study, while movement time was measured as the dependent variable. Data for all the trials were obtained using a three-dimensional magnetic sensing device placed on the back of the subject's hand as he/she moved in space from the starting point to the target in a wooden mockup replicating the work space of a maintainer in an aircraft horizontal stabilizer. Results indicated that movement times increased when the vertical position of the obstruction was within roughly 5.72 cm of the target. Subjects' perceived difficulty in those conditions with longer movement times was attributable more to the inability to see the target during the end of the motion than the lack of positioning space around the target. These findings emphasize the role visual feedback played in a task of this type, and its effect on maintenance procedure times in general.”
© All rights reserved Taylor and Strybel and/or Human Factors Society
Strybel, Thomas Z. (1988): Auditory Spatial Information and Head-Coupled Display Systems. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. p. 75.
“Developments of head-coupled control/display systems have focused primarily on the display of three dimensional visual information, as the visual system is the optimal sensory channel for the acquisition of spatial information in humans. The auditory system improves the efficiency of vision, however, by obtaining spatial information about relevant objects outside of the visual field of view. This auditory information can be used to direct head and eye movements. Head-coupled display systems, can also benefit from the addition of auditory spatial information, as it provides a natural method of signaling the location of important events outside of the visual field of view. This symposium will report on current efforts in the developments of head-coupled display systems, with an emphasis on the auditory spatial component. The first paper "Virtual Interface Environment Workstations", by Scott S. Fisher, will report on the development of a prototype virtual environment. This environment consists of a head-mounted, wide-angle, stereoscopic display system which is controlled by operator position, voice, and gesture. With this interface, an operator can virtually explore a 360 degree synthesized environment, and viscerally interact with its components. The second paper, "A Virtual Display System for Conveying Three-Dimensional Acoustic Information" by Elizabeth M. Wenzel, Frederic L. Wightman and Scott H. Foster, will report on the development of a method of synthetically generating three-dimensional sound cues for the above-mentioned interface. The development of simulated auditory spatial cues is limited to some extent, by our knowledge of auditory spatial processing. The remaining papers will report on two areas of auditory space perception that have received little attention until recently. "Perception of Real and Simulated Motion in the Auditory Modality", by Thomas Z. Strybel, will review recent research on auditory motion perception, because a natural acoustic environment must contain moving sounds. This review will consider applications of this knowledge to head-coupled display systems. The last paper, "Auditory Psychomotor Coordination", will examine the interplay between the auditory, visual and motor systems. The specific emphasis of this paper is the use of auditory spatial information in the regulation of motor responses so as to provide efficient application of the visual channel.”
© All rights reserved Strybel and/or Human Factors Society
Strybel, Thomas Z. (1988): Perception of Real and Simulated Motion in the Auditory Modality. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 76-80.
“Future head-coupled display systems will include auditory spatial information in order to direct the pilot's attention to critical events in the environment. It is anticipated that such a system will provide dynamic as well as static auditory location information. This report reviews current research in the area of auditory motion perception, particularly as it applies to the development of simulated 3-dimensional auditory space.”
© All rights reserved Strybel and/or Human Factors Society
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