"How do i line up?": reducing mental transformations to improve performance

Authors:
Guy W. Zimmerman;Dale Klopfer;G. Michael Poor;Julie Barnes;Laura Leventhal;Samuel D. Jaffee
Affiliations:
Computer Science Department, Bowling Green State University, Bowling Green, OH;Psychology Department, Bowling Green State University, Bowling Green, OH;Computer Science Department, Bowling Green State University, Bowling Green, OH;Computer Science Department, Bowling Green State University, Bowling Green, OH;Computer Science Department, Bowling Green State University, Bowling Green, OH;Computer Science Department, Bowling Green State University, Bowling Green, OH
Venue:
HCII'11 Proceedings of the 14th international conference on Human-computer interaction: design and development approaches - Volume Part I
Year:
2011

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Abstract

Mobile devices and visual-spatial presentations of information are pervasive, especially for tasks in which the mobile device can be moved to close proximity of the task. This mobility allows the user to offload mental workload by allowing physical transformations of the device. In this study, we compared a fixed mobile device, a non-fixed mobile device, and a fixed desktop display to determine the effects imposed by the mental workload of transforming the frames of reference into alignment. Our results indicate that allowing the user to manipulate the device's position can influence performance by reducing the need for mental transformations.