The Effect of Target Color and Contraston Movement Times in Aimed Movement Tasks

摘要

Today’s use of various devices and software requires pointing, clicking or touching within avariety of graphic user interfaces. Understanding the effect of the potential variety of interfaceelements on these interactions or aimed movements will assist in optimizing performance within theseinterfaces. This study addresses the potential effect of color and contrast of targets on performance inaimed movement tasks through a pointing and clicking task on the computer. Target size, color,contrast, and movement direction were manipulated, measuring any effect on movement time anderrors. Size had an effect on movement time, as predicted by Fitts’ law, with a decrease inperformance as size decreased. Color had no significant effect on movement time or errors. Targetcontrast interacted with size in both movement time and error analysis; as size decreased, high contrasttargets were hit faster and produced more errors than low contrast targets. Direction had an effect onmovement time, with faster movements to the left.