Minimum-jerk, two-thirds power law, and isochrony: converging approaches to movement planning.

摘要: Two approaches to the study of movement planning were contrasted. Data on drawing complex two-dimensional trajectories used test whether covariations kinematic and geometrical parameters formalized by two-thirds power law isochrony principle (P. Viviani & R. Schneider, 1991) can be derived from minimum-jerk model hypothesis (T. Flash N. Hogan, 1985). The convergence 2 was satisfactory insofar as relation between tangential velocity curvature is concerned (two-thirds law). Global could not deduced optimal control hypothesis. Scaling within subunits instead implications vis-a-vis issue are discussed with an emphasis representation motor system for coding intended trajectories.