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Thomas J. Triggs

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Publication statistics

Pub. period:1990-2003
Pub. count:5
Number of co-authors:7

Co-authors

Number of publications with 3 favourite co-authors:

Barry H. Kantowitz:2
T. E. Fleming:1
Alan E. Drummond:1

Productive colleagues

Thomas J. Triggs's 3 most productive colleagues in number of publications:

Barry H. Kantowitz:17
James G. Phillips:3
J. W. Meehan:2

Calendar

May 22

Knowing (by) Designing 2013

May 27

13th Intl. Conf. on New Interfaces for Musical Expression

May 28

Graphics Interface 2013

May 20

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Thomas J. Triggs

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"T. J. Triggs"

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Publications by Thomas J. Triggs (bibliography)

2003

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Phillips, James G., Meehan, J. W. and Triggs, Thomas J. (2003): Effects of Cursor Orientation and Required Precision on Positioning Movements on Computer Screens. In International Journal of Human-Computer Interaction, 15 (3) pp. 379-389.

“Arrowhead cursors used within graphic-user interfaces include implicit directional cues that may not be compatible with desired axis of motion. In addition, arrowhead cursors may not afford the best cues for location, and such effects may be exacerbated when there is a greater need for precise cursor placement. To address the impact of the cursor's orientation on its positioning, 12 participants were required to move cursors (pointing arrows) leftward or rightward to targets (small, medium, or large) on a computer screen. Response latencies were influenced by compatibilities between movement direction and cursor shape but only when moderate levels of precision were required. Rightward movements were slower and less accurate, and movements were slower and less efficient when arrows pointed in compatible directions. Implicit directional cues only elicited compatibility effects with moderate precision requirements. Arrowhead cursors compatible with direction of motion led to slower cursor movements and less efficient cursor trajectories. Where response initiation is important, compatible arrowheads are beneficial, but if speed of cursor placement is an issue, an orientation neutral cursor with area effect might be preferable, or a more direct interface (e.g., touch-sensitive screen) might be more appropriate.”

1994

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Kantowitz, Barry H. and Triggs, Thomas J. (1994): Developing Human Factors Guidelines for Intelligent Vehicle/Highway Systems: Third Progress Report. In: Proceedings of the Human Factors and Ergonomics Society 38th Annual Meeting 1994. .

1993

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Triggs, Thomas J. and Drummond, Alan E. (1993): A Young Driver Research Program Based on Simulation. In: Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting 1993. pp. 617-621.

“The Monash University Accident Research Centre is conducting a comprehensive research program with a focus on young driver performance issues. Despite the failure to develop effective young driver risk reduction strategies, most research efforts continue to be directed towards the behaviour and/or motivation of young drivers. This paper suggests that an expansion of this effort to include the investigation of driving performance issues is warranted. To this end, the simulator-based research effort is described, the cornerstone of which is an attempt to identify the important differences in driving performance as a function of driving experience. In addition, an overview of specific investigations in the areas of attention switching time and the provision of decision aiding information is given.”

1992

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Triggs, Thomas J. (1992): Age and Fatigue as Multimodal Transportation Issues. In: Proceedings of the Human Factors Society 36th Annual Meeting 1992. .

1990

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Triggs, Thomas J., Kantowitz, Barry H., Terrill, B. S., Bittner, Jr. A. C. and Fleming, T. E. (1990): The Playback Method of Protocol Analysis Applied to a Rapid Aiming Task. In: D., Woods, and E., Roth, (eds.) Proceedings of the Human Factors Society 34th Annual Meeting 1990, Santa Monica, USA. pp. 1275-1279.

“The analysis of subjective verbal protocols can provide valuable information additional to that obtained from traditional objective data sources. The most frequently used type of protocol analysis is of the "think-aloud" report where operators verbalize as they perform a task of interest. However, while this concurrent method has been usefully applied to high-level cognitive tasks that are accomplished over extended periods, it is generally considered to be less appropriate for short-duration tasks where the emphasis is on speed of performance. This study reports on the application of a new protocol method to a speeded task based on a procedure where the computer "plays back" the experimental trials and shows the subject's response. The verbal response of the subject was recorded during the playback, augmented by prompts from the experimenter. Several aiming tasks requiring rapid movements to a target were examined using this method. The data obtained from the protocol analysis were a valuable adjunct to the actual performance results, and demonstrated that the new method appears to be a satisfactory procedure for obtaining protocols for rapidly performed tasks. Where movements involving both hands were involved, the verbal protocols supported a divided attention hypothesis for performance over a competing motor-program hypothesis. The reports implied that the movement characteristics were under conscious control requiring division of attention.”

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