Yejun Wei

Learn More
We studied reach adaptation to a 30° visuomotor rotation to determine whether augmented error feedback can promote faster and more complete motor learning. Four groups of healthy adults reached with their unseen arm to visual targets surrounding a central starting point. A manipulandum tracked hand motion and projected a cursor onto a display immediately(More)
Abstmct-This paper presents an extension of the au-thors' previous stratified motion planning results to the case where the base manifold upon which the motion planning occurs is not smooth. Robotic applications of this work includes motion planning for legged robots over non-smooth (but known) terrain and manipulation of non-smooth objects with multiple(More)
This paper presents the application of stratified motion planning to the robotic manipulation problem. Although the manipulation problem is a subclass of applications for stratified motion planning, the method present is general in that it is formulation in a manner independent of the object surface geometry or the kine-matics of the " fingers " of the(More)
Previous studies on reaching movements have shown that people can adapt to distortions that are either visuomotor (e.g., prism glasses) or mechanical (e.g., force fields) through repetitive training. Other work has shown that these two types of adaptation may share similar neural resources. One effective test of this sharing hypothesis would be to show that(More)
  • 1