Estimating time to contact and impact velocity when catching an accelerating object with the hand.

摘要: To catch a moving object with the hand requires precise coordination between visual information about target's motion and muscle activity necessary to prepare for impact. A key question remains open as if how human observer uses velocity acceleration when controlling muscles in anticipation of Participants were asked end swinging counterweighted pendulum, resulting activities arm measured. The authors also simulated that would be produced according different tuning strategies. By comparing data simulations, provide evidence observers use online but not preparing