Paper Info
Title
Investigating Smartphone Touch Area With One-Handed Interaction: Effects Of Target Distance And Direction On Touch Behaviors
Abstract
The objective of this study was to investigate the touch area that can be comfortably reached by the thumb during one-handed smartphone interaction. To achieve the research objective, we introduced the concept of natural thumb position when designing a tapping task and conducted an user experiment. The independent variables were the target distance and direction from the natural thumb position, and the three dependent variables were the task performance, information throughput, and touch accuracy. The results showed that participants performed the task comfortably in the diagonal direction between the upper right and the lower left side of the screen. The task performance deteriorated as the target distance increased, especially at 45 mm or more. The touch accuracy was measured using X- and Y-coordinates data. Participants touched the left side of the target center, except near the proximal area of the hand. They also touched the points above the center of the target in the upper screen area and points below the center of the target in the lower screen area. The findings of this study provided insights for designing a smartphone touch interface considering the comfortable touch areas of one-handed interaction.
Year
DOI
Venue
2019
10.1080/10447318.2018.1554320
INTERNATIONAL JOURNAL OF HUMAN-COMPUTER INTERACTION
Field
DocType
Volume
Thumb,Computer science,Human–computer interaction,Multimedia
Journal
35
Issue
ISSN
Citations 
16
1044-7318
0
PageRank 
References 
Authors
0.34
5
3
Name
Order
Citations
PageRank
Seul Chan Lee165.64
Min Chul Cha200.34
Yong Gu Ji323822.42