Fig. 3.

Effect of NMDA on mechanically induced locomotion. Needle penetration into the NMC produced muscle tone suppression intermixed with rhythmic muscle activity on day 2 post-decerebration in this cat which had hemorrhagic lesion of the ventral part of the mesopontine junction. NMDA injection into the NMC produced an increase of basal muscle tone and blocked locomotion. Locomotion recovered when muscle tone returned to the baseline level (bottom panel). LS, left splenius; RS, right splenius.