A New Approach to Modeling the Prediction of Movement Time

Chiuhsiang Joe Lin and Chih-Feng Cheng
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Chiuhsiang Joe Lin: Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan
Chih-Feng Cheng: Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan

Mathematics, 2021, vol. 9, issue 14, 1-26

Abstract: Fitts’ law predicts the human movement response time for a specific task through a simple linear formulation, in which the intercept and the slope are estimated from the task’s empirical data. This research was motivated by our pilot study, which found that the linear regression’s essential assumptions are not satisfied in the literature. Furthermore, the keystone hypothesis in Fitts’ law, namely that the movement time per response will be directly proportional to the minimum average amount of information per response demanded by the particular amplitude and target width, has never been formally tested. Therefore, in this study we developed an optional formulation by combining the findings from the fields of psychology, physics, and physiology to fulfill the statistical assumptions. An experiment was designed to test the hypothesis in Fitts’ law and to validate the proposed model. To conclude, our results indicated that movement time could be related to the index of difficulty at the same amplitude. The optional formulation accompanies the index of difficulty in Shannon form and performs the prediction better than the traditional model. Finally, a new approach to modeling movement time prediction was deduced from our research results.

Keywords: Fitts’ law; information theory; index of difficulty; SQRT_MT model (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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