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Effect of Variable Feedback Delay on Visual Target-Acquisition Performance

Mateo, Julio Christian
http://rave.ohiolink.edu/etdc/view?acc_num=wright1183069456

Abstract Details

2007, Master of Science (MS), Wright State University, Human Factors and Industrial/Organizational Psychology MS.
Traditionally, private communication channels with stable characteristics have been used in teleoperation situations. However, recently there have been a few attempts at using public communication channels such as the Internet. In spite of their convenience, very little is known about the effect of the variable delays inherent in this type of channel on motor performance. In this thesis, we provide empirical data on the impact of variable feedback delays on a 3D visual target-acquisition task performed in a virtual environment. Target size, distance between targets, mean feedback delay, and feedback-delay variability were manipulated and the number of errors and movement time (MT) were measured. Results showed that feedback-delay variability affected the closed-loop part of visual target-acquisition movements, even though its effect was weaker than the effect of mean feedback delay. Our results advise against using techniques that reduce feedback-delay variability at the expense of increasing mean feedback delay. In addition, we found that target size was critical for visual target-acquisition performance in the presence of feedback delays and this should be considered when designing teleoperation situations. Issues associated with studying feedback-delay variability are identified and lines of future research are suggested.
Robert Gilkey (Advisor)
94 p.
Psychology, Experimental
time delay; motor performance; telerobotics; virtual environment; visuo-motor coordination

Recommended Citations

Citations

  • Mateo, J. C. (2007). Effect of Variable Feedback Delay on Visual Target-Acquisition Performance [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1183069456

    APA Style (7th edition)

  • Mateo, Julio. Effect of Variable Feedback Delay on Visual Target-Acquisition Performance. 2007. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1183069456.

    MLA Style (8th edition)

  • Mateo, Julio. "Effect of Variable Feedback Delay on Visual Target-Acquisition Performance." Master's thesis, Wright State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1183069456

    Chicago Manual of Style (17th edition)

wright1183069456
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© 2007, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.