Bizzi E, D'Avella A, Saltiel P, Tresch M
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge 02139, USA.
Neuroscientist. 2002 Oct;8(5):437-42. doi: 10.1177/107385802236969.
The vertebrate nervous system produces a wide range of movement flexibly and efficiently, even though the simplest of these movements is potentially highly complex. The strategies by which the nervous system overcomes these complexities have therefore been of interest to motor physiologists for decades. In this review, the authors present a number of recent experiments that propose one strategy by which the nervous system might simplify the production of movement. These experiments suggest that spinal motor systems are organized in terms of a small number of distinct motor responses, or "modules." These distinct modules can be combined together simply to produce a wide range of different movements. Such a modular organization of spinal motor systems can potentially allow the nervous system to produce a wide range of natural behaviors in a simple and flexible manner.
脊椎动物的神经系统能够灵活而高效地产生各种各样的运动，尽管这些运动中最简单的一种可能本身就极为复杂。因此，数十年来，神经系统克服这些复杂性的策略一直是运动生理学家们感兴趣的课题。在这篇综述中，作者介绍了一些近期的实验，这些实验提出了一种神经系统可能简化运动产生过程的策略。这些实验表明，脊髓运动系统是按照少数几种不同的运动反应或“模块”来组织的。这些不同的模块可以简单地组合在一起，从而产生各种各样不同的运动。脊髓运动系统的这种模块化组织有可能使神经系统以简单而灵活的方式产生各种各样的自然行为。
