SPEED-ACCURACY TRADEOFF MODELS IN TARGET-BASED AND TRAJECTORY-BASED MOVEMENTS

Speed-accuracy tradeoff is a very common phenomenon in many types of human, motor tasks. In general, the accuracy of a movement tends to decrease when. its speed increases and vise versa. This issue has been. studied for more than a century, during which some alternative performance models between the speed and accuracy have been presented. In this pope?,, we make a critical survey of the scientific literature dealing with the speed-accuracy tradeoff models in target-based movement and trajectory-based movement, which are two main and popular task paradigms in human computer interaction. Some of the models emerged from basic research in experimental psychology and motor control theory, whereas others emerged from the specific need in HCI to model the interaction between users and physical devices, such as mice, keyboard and stylus. This paper summarized these models from the perspective of spatial constraint and temporal constraint for each of the target-based and trajectory-based movements.