Relova J L, Padel Y
Equipe Mécanismes Sensori-Moteurs, LNF 3, CNRS, 31, Marseille, France.
Exp Brain Res. 1989;75(3):639-43. doi: 10.1007/BF00249915.
Evidence is presented that in the cat, the spinothalamic system contributes to short latency somaesthetic responses in motor cortex efferent cells. Intracellular recordings performed on identified pyramidal tract cells and corticospinal cells show that these cells are still activated and/or inhibited from the periphery after a set of central nervous lesions leaving intact only the ventral half of the spinal cord. The responses were attributed to the spinothalamic system. The ascending system is activated through collaterals of afferent fibres running in the dorsal columns of the spinal cord. This peripheral link to the motor cortex might participate in updating the motor command on the basis of information feedback from the periphery.
有证据表明，在猫中，脊髓丘脑系统对运动皮层传出细胞的短潜伏期躯体感觉反应有贡献。对已识别的锥体束细胞和皮质脊髓细胞进行的细胞内记录表明，在一组中枢神经损伤后，仅保留脊髓腹侧一半完整的情况下，这些细胞仍会被外周激活和/或抑制。这些反应归因于脊髓丘脑系统。上行系统通过脊髓背柱中传入纤维的侧支被激活。这种与运动皮层的外周联系可能参与根据外周的信息反馈来更新运动指令。
