Prediction of a three-dimensional pointing task through extending the motor module of ACT-R

Daecheol Park, Rohae Myung

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

1 Citation (Scopus)

Abstract

In this study, we attempted to develop a model to describe a pointing task in a three-dimensional environment, particularly in a car cockpit. When humans interact with a system in three-dimensional space, they usually reach toward targets to adjust controls. Hence, reaching movements are considered to describe pointing tasks in three-dimensions. However, the ACT-R cognitive architecture deals only with two-dimensions with hand movements using Fitts' law or parameters. Therefore, this paper proposes a method to describe the reaching arm movement of a person in a three-dimensional environment by extending the motor module of ACT-R. Arm movement is more complicated bio-logically than hand movement, because many aspects such as kinematic features have to be considered. In this study, an extended Fitts' law that includes the azimuth angle and inclination angle was used to develop the extended motor module to represent human reaching actions. A pointing task was then simulated using an extended ACT-R in a mock-up vehicle. The extended motor module was found to simulate pointing movements in three-dimensional environments accurately with an r-squared value of 0.947. In addition, the extended motor module is able to describe the variations in movement determined by the targets' locations and directions.

Original languageEnglish
Title of host publicationProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012
Pages1396-1400
Number of pages5
DOIs
Publication statusPublished - 2012 Dec 1
EventProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012 - Boston, MA, United States
Duration: 2012 Oct 222012 Oct 26

Publication series

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

Other

OtherProceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012
CountryUnited States
CityBoston, MA
Period12/10/2212/10/26

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ASJC Scopus subject areas

  • Human Factors and Ergonomics

Cite this

Park, D., & Myung, R. (2012). Prediction of a three-dimensional pointing task through extending the motor module of ACT-R. In Proceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, HFES 2012 (pp. 1396-1400). (Proceedings of the Human Factors and Ergonomics Society). https://doi.org/10.1177/1071181312561397