The Effects of Computer User Handedness on a Mouse-Clicking Task
The present study examined computer user handedness on a motor task using Fitts’s Law. Results indicated that right-handed participants were significantly faster than the left-handed participants when performing the motor task as measured by the Index of Performance. This finding could be partially attributed to the mouse design that is inconsistent with differential user handedness. Conversely, this finding could also be partially attributed to the degree of training left-handed participants received relative to their right-handed counterparts. The right-handed users outperformed their counterpart left-handed users perhaps because of physical design biases or relative degree of training. The present findings have practical implications for computer input device such as game controllers, joysticks, or mice that are physically designed for right-handed users.