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Author Friedman, Jason; Flash, Tamar pdf  url
doi  openurl
  Title Trajectory of the index finger during grasping Type Journal Article
  Year 2009 Publication Experimental Brain Research Abbreviated Journal Exp Brain Res  
  Volume 196 Issue 4 Pages 497-509  
  Abstract The trajectory of the index finger during grasping movements was compared to the trajectories predicted by three optimization-based models. The three models consisted of minimizing the integral of the weighted squared joint derivatives along the path (inertia-like cost), minimizing torque change, and minimizing angular jerk. Of the three models, it was observed that the path of the fingertip and the joint trajectories, were best described by the minimum angular jerk model. This model, which does not take into account the dynamics of the finger, performed equally well when the inertia of the finger was altered by adding a 20 g weight to the medial phalange. Thus, for the finger, it appears that trajectories are planned based primarily on kinematic considerations at a joint level.  
  Address Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel,  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1432-1106 ISBN Medium  
  Area Expedition Conference  
  Notes (down) PMID:19521692 Approved no  
  Call Number Penn State @ @ Serial 17  
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