Multi-touch rotation gestures: performance and ergonomics

Authors:
Eve Hoggan;John Williamson;Antti Oulasvirta;Miguel Nacenta;Per Ola Kristensson;Anu Lehtiö
Affiliations:
University of Helsinki, Helsinki, Finland;University of Glasgow, Glasgow, Scotland Uk;Max Planck Institute for Informatics, Saarbruecken, Germany;University of St Andrews, St Andrews, Scotland Uk;University of St Andrews, St Andrews, Scotland Uk;University of Helsinki, Helsinki, Finland
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2013

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Abstract

Rotations performed with the index finger and thumb involve some of the most complex motor action among common multi-touch gestures, yet little is known about the factors affecting performance and ergonomics. This note presents results from a study where the angle, direction, diameter, and position of rotations were systematically manipulated. Subjects were asked to perform the rotations as quickly as possible without losing contact with the display, and were allowed to skip rotations that were too uncomfortable. The data show surprising interaction effects among the variables, and help us identify whole categories of rotations that are slow and cumbersome for users.