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Fitts’ law in the presence of interface inertia
2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2020Collaborative robots are advancing the healthcare frontier, in applications such as rehabilitation and physical therapy. Effective physical collaboration in human-robot systems require an understanding of partner intent and capability. Various modalities exist to convey such information between human agents, however, natural interactions between humans
Sheila Sutjipto +3 more
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Violations of Fitts’ Law in a Ballistic Task
Journal of Motor Behavior, 2009The authors explored changes in the postural preparation and movement times during jumps into targets of different sizes placed at different distances from the participant. Both movement and preparation times scaled with movement distance. Neither movement nor preparation time showed an effect of target size, although preparation time showed a tendency
Grzegorz, Juras +2 more
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Journal of Motor Behavior, 1979
This paper presents a reappraisal of Fitts' (1954) law and outlines reasoning which predicts that, for tasks of equivalent difficulty as calculated by Fitts' Index of Difficulty, smaller-tolerance tasks will, within limits, take longer to perform. Reanalysis of Fitts' data appears to confirm this view.
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This paper presents a reappraisal of Fitts' (1954) law and outlines reasoning which predicts that, for tasks of equivalent difficulty as calculated by Fitts' Index of Difficulty, smaller-tolerance tasks will, within limits, take longer to perform. Reanalysis of Fitts' data appears to confirm this view.
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Biasing response in Fitts' Law tasks
CHI '06 Extended Abstracts on Human Factors in Computing Systems, 2006Fitts' law, relating the time to acquire a target to the target size and the distance from the target, is an effective and widely used predictor of performance in feedback controlled human motor targeting tasks. Beyond target size, however, movement time also varies according to a subject controlled mental trade-off between speed and accuracy for a ...
Emory Al-Imam, Edward Lank
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The effects of probe length on Fitts’ law
Applied Ergonomics, 2002Experiments were aimed at determining the effect of a human using an extended probe when making movements that required accuracy at the completion of the movement. Ten subjects performed 64 conditions of varying amplitude of movement, final accuracy and probe length.
Kevin M, Baird +2 more
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Generalized Fitts' law model builder
Conference companion on Human factors in computing systems - CHI '95, 1995A tool for designing experiments, capturing data, and building Fitts’ law models is described. The software runs on an IBM or compatible computer equipped with an appropriate graphical display and selection device (e.g., mouse, joystick). Features intended for HCI educational purposes or experimental research are included, making this a very powerful ...
R. William Soukoreff, I. Scott MacKenzie
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Diving, Adaptation, and Fitts Law
Journal of Motor Behavior, 1978To assess Welford's dual controlling factor interpretation of Fitts' law, 20 scuba divers performed a reciprocal tapping task. In an attempt to separate the two factors, the subjects were tested on land and underwater. This does not change the basic parameters of the task but does put the subjects under informational stress, in that underwater the ...
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A Test of Fitts' Law with Moving Targets
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1980Subjects used either a position or a velocity control system to capture stationary and moving targets. Fitts' Index of Difficulty was found to be a good predictor of capture time for the rate system. However, for the position control system, the Fitts measure failed to predict accurately the capture time for moving targets.
R J, Jagacinski +3 more
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Fitts's Law Holds for Action Perception
Psychological Science, 2007Fitts's law is one of the most well-established principles in psychology. It captures the relation between speed and accuracy in performed and imagined movements. The aim of this study was to determine whether this law also holds during the perception of other people's actions.
Marc, Grosjean +2 more
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Reporting and Visualizing Fitts's Law
Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems, 2016In this paper we compare methods of reporting and visualizing Fitts regressions. We show that reporting this metric using mean movement time per user over accuracy-adjusted Index of Difficulty (IDe) produces more descriptive visualization. This method displays variance, which is more useful in understanding the interfaces, than an aggregated means-of ...
Alvin Jude +2 more
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