By assessing the precision of gestural interactions with touchscreen targets, the authors investigate how the type of gesture, target location, and scene visibility impact movement endpoints. Participants made visually and memory-guided pointing and swiping gestures with a stylus to targets located in a semicircle. Specific differences in aiming errors were identified between swiping and pointing. In particular, participants overshot the target more when swiping than when pointing and swiping endpoints showed a stronger bias toward the oblique than pointing gestures. As expected, the authors also found specific differences between conditions with and without delays. Overall, the authors observed an influence on movement execution from each of the three parameters studied and uncovered that the information used to guide movement appears to be gesture specific.

通过评估手势与触摸屏目标交互的精度，作者研究了手势的类型，目标位置和场景可见性如何影响运动端点。参与者使用手写笔在视觉和记忆引导下指向和滑动手势，以半圆形目标为目标。在滑动和指向之间发现了瞄准误差的具体差异。尤其是，与击打时相比，与击打时相比，与击打端点相比，参与者对目标的过度射击更多。正如预期的那样，作者还发现了有延迟和没有延迟的条件之间的特定差异。总体，