The Effect of Target Color and Contrast on Movement Times in Aimed Movement Tasks

Abstract

Today's use of various devices and software requires pointing, clicking or touching within a variety of graphic user interfaces. Understanding the effect of the potential variety of interface elements on these interactions or aimed movements will assist in optimizing performance within these interfaces. This study addresses the potential effect of color and contrast of targets on performance in aimed 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 and errors. Size had an effect on movement time, as predicted by Fitts' law, with a decrease in performance as size decreased. Color had no significant effect on movement time or errors. Target contrast interacted with size in both movement time and error analysis; as size decreased, high contrast targets were hit faster and produced more errors than low contrast targets. Direction had an effect on movement time, with faster movements to the left.

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References

Bauer

Jolicoeur

Cowan

W. B.

(1996). Visual search for colour targets that are or are not linearly separable from distractors. Vision Research 36, (10), 1439–1465.

Brown

T. J.

(1991). Visual display highlighting and information extraction. Proceedings of the Human Factors Society 35th Annual Meeting 1991, USA, 1427–1431.

Fitts

P. M.

(1954). The information capacity of the human motor system in controlling the amplitude of movement. Journal of Experimental Psychology, 47, 381–391.

Galitz

W. O.

(2002). Essential guide to user interface design. New York, USA: John Wiley & Sons, Inc.

Gentilucci

Benuzzi

Bertolani

Gangitano

(2001). Influence of stimulus color on the control of reaching-grasping movements. Experimental Brain Research 137, 36–44.

Gundlach

Macoubrey

(1931). The effect of color on apparent size. American Journal of Psychology 43 109–111.

Jeannerod

(1990). The neural and behavioural organization of goal-directed movements. New York, USA: Oxford University Press.

Legge

G. E.

Rubin

G. S.

Luebker

(1987). Psychophysics of reading: V. The role of contrast in normal vision. Vision Research, 27 (7), 1165–1177.

MacKenzie

I. S.

(1991). Fitts law as a performance model in human-computer interaction. Doctoral dissertation. University of Toronto: Toronto, Ontario, Canada.

10.

Morgan

Bradshaw

J. L.

Phillips

J. G.

Mattingley

J. B.

Iansek

Bradshaw

J. A.

, (1994). Effects of hand and age upon abductive and adductive movements: A kinematic analysis. Brain and Cognition, 25, 194–206.

11.

Murch

G. M.

(1984). Physiological principles for the effective use of color. IEEE Computer Graphics and Applications 4, (11), 49–54.

12.

Shevel

S. K.

(2003). The Science of Color. Oxford, UK: Elsevier.

13.

Tedford

W. H.

Bergquist

S. L.

Flynn

W. E.

(1977). The size-color illusion. The Journal of General Psychology 97, 145–149.

14.

Van Orden

K. F.

Divita

Shim

M. J.

(1993). Redundant use of luminance and flashing with shape and color as highlighting codes in symbolic displays. Human Factors 35, (2), 195–204.

15.

Wallis

W. A.

(1935). The influence of color on apparent size. Journal of General Psychology 13 193–199.