Re-optimization Contributes to the Adaption of External VF Field

摘要：

The computational model of Franklin et al. (J. Neurosci., 28(44) 2008, 11165-11173) describes the adaptation of human arm movement to the external force field with lower-level feed-forward module for compensation. While this paper proposes another possible option that when the environment can be expressed in the internal model, the upper-level optimal control module can directly play the role of feedforward compensation merely via tuning two corresponding parameters: the co-contraction level r between a pair of antagonistic muscles and the parameter reflecting the force field during optimal calculation. To verify this idea, this paper imposes velocity-dependent force field in the simulation on the neruo-musculo-skeletal biomechanical model using optimal control method. Qualitatively, the outcome is consistent with the experimental references.

关键词： Motor adaption Velocity-dependent force field Feedfoward compensation Neuro-musculo-skeletal biomechanical model Optimal control

作者: Chunjiang Fu Rubin Wang Jianting Cao

作者单位: Institute for Cognitive Neurodynamics, East China University of Science and Technology, Shanghai 200237, China

会议类型: 国际会议

会议名称: The Second International Conference on Cognitive Neurodynamics--2009(第二届国际认知神经动力学会议)

会议地点: 杭州

会议语种:英文

页码: 473-478

在线出版日期: 2009-11-15（万方平台首次上网日期，不代表论文的发表时间）