Barbara S. Bregman

TL;DR: Spinal cord damage in neonatal cats has different effects on different spinal pathways, and spare of motor function is found in cats operated on as neonates but not in catsoperated on as adults, and appears to depend on the plasticity of the corticospinal tract.

TL;DR: It is demonstrated that sparing of tactile placing occurs after neonatal but not adult spinal cord damage and that the spared tactile placing of one limb depends on the corresponding (contralateral) sensorimotor cortex and that only the latest developing pathways displayed anatomical sparing.

TL;DR: Two aspects of this study support the hypothesis that later developing motor patterns will have a greater chance for survival and subsequent development than those which are present at birth, but the hypothesis is not supported when the long-term effect of spinal cord lesions on the maturation of motor behavior is considered.

TL;DR: The results taken together indicate that the relationship between age at the time damage occurs and ultimate outcome in terms of motor behavior is complex: different motor patterns respond differently to the same lesion.

TL;DR: Normal dendritic morphology of frog (Rana pipiens) lumbar motoneurons was studied using Golgi silver impregnation and dendrites were classified based upon site of dendrite origin from the soma and distribution of thedendritic array within the spinal cord.