Article Archives

A Breakdown of the Psychomotor Components of Input Device Usage

by Jeremy Slocum Summary: This study investigates the breakdown of the psychomotor components of three different input devices, the mouse, trackball, and RollerMouseTM using the Stochastic Optimized Submovement Model. Primary movement time (PMT), Total Movement Time (TMT), Primary Movement Distance

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Ergonomic Mice: Comparison of Performance and Perceived Exertion

by Deborah Scarlett Summary: This study reports a psychophysical comparison of four ergonomic mouse-type devices to the standard mouse. It was hypothesized that muscle activity transferred from the distal to proximal limbs for some of the ergonomic mice may result

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Reading Online Text with a Poor Layout: Is Performance Worse?

by Barbara S. Chaparro, A. Dawn Shaikh, & J. Ryan Baker Summary: This study examined the effects of enhanced layout (headers, indentation, and figure placement) on reading performance, comprehension, and satisfaction. Participants read text passages with and without enhanced layout.

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Reading Online Text: A Comparison of Four White Space Layouts

By Barbara Chaparro, J. Ryan Baker, A. Dawn Shaikh, Spring Hull, & Laurie Brady Summary: In this study, reading performance with four white space layouts was compared. Margins surrounding the text and leading (space between lines) were manipulated to generate

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The Effects of Perceptual Grouping on Text Entry Performance

By Christopher J. Hamblin, Michael Bohan, & Alex Chaparro Summary: One of the primary challenges confronting designers of mobile computing devices is the issue of efficient text entry. One potential solution is to group multiple letters onto single keys, similar

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