Effects and optimization of visual-proprioceptive discrepancy reduction for virtual grasping.

A virtual hand can intentionally deviate from the real hand configuration to improve interaction and experience. Subsequent discrepancy reduction (convergence) is important to avoid undesirable side effects such as grasping difficulty. Prior work did not study convergence motion effects adequately to understand finger motions and speed effects. We present the first grasping-focused studies on convergence motion speed effects. The results are important for optimizing convergence motion and can contribute to guidelines for related interaction types.