Abstract
Previous studies have used the Fitts’ Law to predict the performance of pointing task on touch screens. It was found that moving distance, target width, and the direction of motion would affect the task performance. The present research aimed to investigate the impact of the initial and terminal positions (ITPs) on pointing performance in two Exps. ITPs were divided into two categories: center of a screen and outer of a screen (center ↔ outer) pointing, and outer of a screen to outer of a screen (outer→outer) pointing. In Exp 1, 30 participants performed the center ↔ outer pointing tasks with 8 directions. The results showed that the outer → center movement was significantly faster than the center → outer at 45°, 90°, and 180°. In Exp 2, 30 participants performed the outer → outer pointing tasks with eight directions. The current study revealed that the ITPs influenced the performance of the pointing task, possibly due to human biomechanical characteristics associated with different movements.
Original language | English |
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Pages (from-to) | 1291-1299 |
Number of pages | 9 |
Journal | International Journal of Human-Computer Interaction |
Volume | 37 |
Issue number | 14 |
Early online date | 7 May 2021 |
DOIs | |
Publication status | Published - 2021 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2021 Taylor & Francis Group, LLC.
Funding
This research was partly funded by Advance Research Fund Project in Manned Space Field (030602). National Natural Science Foundation of China [NSFC: 31671146] and Space Medical experiment Project of the China Manned Space Program [HYZHXM03001].