Figure 10. Changes in coupling after partial transverse sections of the spinal cord.

Lesions at the L2–L3 junction were often gradually increased until axial coordination appeared to be modified. The top drawing of each panel indicates the extent of the cord lesion in the transverse plane (indicated in grey). A, motor activity recorded under bath application of Stry–Bic plus NMA, after contralateral cord section. B, lateral sectioning of the cord provokes a partial uncoupling between rostral and caudal activity and a change in the motor burst period. C, a complete section leads to total decoupling of the two sections of the spinal cord.