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Conference Papers Year : 2021

Sticking Out Like a Non-dominant Thumb

Abstract

In this paper we present our study (n = 30) to gauge the effect of hand-dominance on Fitts’ throughput through four test cases—forefingers and thumbs of dominant and non-dominant hands in tapping tasks for touch-based mobile interfaces. We set out with the expectation that throughput for a dominant digit would exceed that for the corresponding digit of the other hand. We reveal that this was followed in the case of right-handed users for both forefingers and thumbs, and in case of forefingers for all users. Right-handed users had higher throughput for dominant digits (mean = 5.608) than non-dominant digits (mean = 4.736). All users had higher throughput for dominant forefingers (mean = 6.081) than non-dominant forefingers (mean = 5.436). However, surprisingly, left-handed users showed a higher throughput for non-dominant thumbs (mean = 6.078) than dominant thumbs (mean = 5.721). Throughputs of forefingers and thumbs were not significantly different for any groups.
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hal-04292349 , version 1 (17-11-2023)

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Maulashree Shanbhag, Anirudha Joshi, Bijoy Singh Kochar. Sticking Out Like a Non-dominant Thumb. 18th IFIP Conference on Human-Computer Interaction (INTERACT), Aug 2021, Bari, Italy. pp.161-181, ⟨10.1007/978-3-030-85613-7_12⟩. ⟨hal-04292349⟩
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