van DIJK J H
Biol Cybern. 1978 Sep 28;30(4):195-208. doi: 10.1007/BF00361041.
The problem of the control of voluntary human movements is considered from a cybernetic point of view. The human motor system is considered to be divided into a central part and a peripheral part. The peripheral part is relatively well known and may be regarded as a set of subsystems with well known input-output relations. The interaction between the peripheral part and the central part is related to the mechanisms of the peripheral motor part. With regard to the central part two different types of control mechanisms are possible, a) an intricate functioning of the central part which generates the control signals with regard to internal and extrenal dynamical factors, b) the central part has some degree of independence with respect to the dynamics of the peripheral motor part. In the latter case the central part prescribes the desired movement exactly, but the final performance of the movement is also brought about by peripheral feed-back mechanisms. As a functional form of the interaction between the central part and the peripheral part it might be that the control signals are encoded in a way that is related to the muscle lengths.
从控制论的角度来考虑人类随意运动的控制问题。人体运动系统被认为可分为中枢部分和外周部分。外周部分相对较为人所熟知，可被视作是一组具有已知输入 - 输出关系的子系统。外周部分与中枢部分之间的相互作用与外周运动部分的机制相关。关于中枢部分，存在两种不同类型的控制机制：a）中枢部分的复杂运作，其根据内部和外部动态因素生成控制信号；b）中枢部分相对于外周运动部分的动力学具有一定程度的独立性。在后一种情况下，中枢部分精确规定了期望的运动，但运动的最终表现也由外周反馈机制实现。作为中枢部分与外周部分之间相互作用的一种功能形式，控制信号可能以与肌肉长度相关的方式进行编码。
