Bard C, Fleury M, Teasdale N, Paillard J, Nougier V
Laboratoire de performance motrice humaine, Université Laval, Ste-Foy, PQ, Canada.
Can J Physiol Pharmacol. 1995 Feb;73(2):246-54. doi: 10.1139/y95-035.
The absence of muscular proprioception, whether at a segmental or at a central level, impairs performance in several ways. The contribution of proprioception to movement control and learning is not easily dissociated from that of other sources of sensory information (e.g., vision). Therefore, the rare clinical cases of extensive neuropathy, depriving the brain massively and permanently of its presumed main sources of dynamogenic information from skin and muscles, are of very special interest. Two such patients and controls were tested in experiments investigating (i) force production, (ii) amplitude coding, (iii) spatial reference frames in pointing, and (iv) prismatic adaptation. Overall, our results highlight the key role of proprioceptive afferents for calibrating the spatial motor frame of reference, and the powerful substitutive properties of the central nervous system.
无论是在节段水平还是中枢水平，肌肉本体感觉的缺失都会在多个方面损害运动表现。本体感觉对运动控制和学习的贡献不易与其他感觉信息来源（如视觉）的贡献区分开来。因此，罕见的广泛神经病变临床病例，使大脑大量且永久地失去其假定的来自皮肤和肌肉的主要动力信息来源，具有非常特殊的研究价值。在研究（i）力量产生、（ii）幅度编码、（iii）指向中的空间参照系以及（iv）棱镜适应的实验中，对两名此类患者及对照组进行了测试。总体而言，我们的结果突出了本体感觉传入神经在校准空间运动参照系方面的关键作用，以及中枢神经系统强大的替代特性。
