ISSN:
1432-0770
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Computer Science
,
Physics
Notes:
Abstract. In modeling human and primate motor behavior, optimization has been used to mathematically describe hand trajectories during reaching movement, with the duration of the movement given as part of the boundary conditions. As duration is an input to the model rather than an output, a description is lacking of how the duration depends upon the circumstances of the movement. In the present work, we extend a minimum jerk model of reach trajectory planning to include a penalty for duration and show that it can be used to quantify the trade-off between quickness and effort in reaching movements. We then show that a given trade-off for a nominal reaching movement can predict the duration of related movements, specifically reaching movements subject to perturbation of the target during their course. The mathematical model is tested against several independent bodies of experimental data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004220050107
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