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The inactivation principle: mathematical solutions minimizing the absolute work and biological implications for the planning of arm movements

Berret, Bastien ; Darlot, Christian ; Jean, Frédéric ; Pozzo, Thierry ; Papaxanthis, Charalambos ; Gauthier, Jean Paul

PLoS computational biology, October 2008, Vol.4(10), pp.e1000194 [Tạp chí có phản biện]

E-ISSN: 1553-7358 ; PMID: 18949023 Version:1 ; DOI: 10.1371/journal.pcbi.1000194

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  • Nhan đề:
    The inactivation principle: mathematical solutions minimizing the absolute work and biological implications for the planning of arm movements
  • Tác giả: Berret, Bastien ; Darlot, Christian ; Jean, Frédéric ; Pozzo, Thierry ; Papaxanthis, Charalambos ; Gauthier, Jean Paul
  • Chủ đề: Models, Biological ; Arm -- Physiology ; Physical Exertion -- Physiology ; Psychomotor Performance -- Physiology
  • Là 1 phần của: PLoS computational biology, October 2008, Vol.4(10), pp.e1000194
  • Mô tả: An important question in the literature focusing on motor control is to determine which laws drive biological limb movements. This question has prompted numerous investigations analyzing arm movements in both humans and monkeys. Many theories assume that among all possible movements the one actually performed satisfies an optimality criterion. In the framework of optimal control theory, a first approach is to choose a cost function and test whether the proposed model fits with experimental data. A second approach (generally considered as the more difficult) is to infer the cost function from behavioral data. The cost proposed here includes a term called the absolute work of forces, reflecting the mechanical energy expenditure. Contrary to most investigations studying optimality principles of arm movements, this model has the particularity of using a cost function that is not smooth. First, a mathematical theory related to both direct and inverse optimal control approaches is presented....
  • Ngôn ngữ: English
  • Số nhận dạng: E-ISSN: 1553-7358 ; PMID: 18949023 Version:1 ; DOI: 10.1371/journal.pcbi.1000194

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