Extended Fitts' law in three-dimensional pointing tasks

Yeonjoo Cha, Rohae Myung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This study explored an extended three-dimensional Fitts' law that is more suited for the pointing task than the conventional Fitts' law. The experiments were conducted under the manipulation of the distance to the target, size of the target, and direction of the target's location that can be described by two angles, θ1 and θ2. Considering the starting point as the center of coordinates, θ1 is the angle between the positive z-axis and the target location and θ2 is the angle between the positive y-axis and the projected target location on the x-y plane. From the experimental results, we confirmed that all four variables significantly affect the movement time. As we extended the index of difficulty of the conventional Fitts' model by incorporating θ1 and θ2, we established an extended Fitt's model that showed better accordance with the empirical data than the conventional Fitts' model, in terms of the r2 and the standard error of the residual between the measured movement time and the predicted value.

Original languageEnglish
Title of host publication54th Human Factors and Ergonomics Society Annual Meeting 2010, HFES 2010
Pages972-976
Number of pages5
DOIs
Publication statusPublished - 2010
Event54th Human Factors and Ergonomics Society Annual Meeting 2010, HFES 2010 - San Francisco, CA, United States
Duration: 2010 Sep 272010 Oct 1

Publication series

NameProceedings of the Human Factors and Ergonomics Society
Volume2
ISSN (Print)1071-1813

Other

Other54th Human Factors and Ergonomics Society Annual Meeting 2010, HFES 2010
CountryUnited States
CitySan Francisco, CA
Period10/9/2710/10/1

ASJC Scopus subject areas

  • Human Factors and Ergonomics

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