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Experimental Brain Research

, Volume 231, Issue 3, pp 367–379 | Cite as

A model for combined targeting and tracking tasks in computer applications

  • Ransalu Senanayake
  • Errol R. Hoffmann
  • Ravindra S. GoonetillekeEmail author
Research Article

Abstract

Current models for targeted-tracking are discussed and shown to be inadequate as a means of understanding the combined task of tracking, as in the Drury’s paradigm, and having a final target to be aimed at, as in the Fitts’ paradigm. It is shown that the task has to be split into components that are, in general, performed sequentially and have a movement time component dependent on the difficulty of the individual component of the task. In some cases, the task time may be controlled by the Fitts’ task difficulty, and in others, it may be dominated by the Drury’s task difficulty. Based on an experiment carried out that captured movement time in combinations of visually controlled and ballistic movements, a model for movement time in targeted-tracking was developed.

Keywords

Targeted-tracking Fitts’ law Steering law Movement time 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Ransalu Senanayake
    • 1
  • Errol R. Hoffmann
    • 1
  • Ravindra S. Goonetilleke
    • 1
    Email author
  1. 1.Department of Industrial Engineering and Logistics ManagementHong Kong University of Science and TechnologyClear Water BayHong Kong

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