[Dynamics of instrumental reflex changes following transection of the corticospinal tract and ablation of the cerebral cortex sensorimotor region in rats].
Unilateral transection of bulbar pyramid performed prior to ablation of the ipsilateral sensomotor cortex was shown to facilitate recovery of operant conditioning and compensatory processes in rats. There was no such corticofugal plasticity in ablation of the sensomotor cortex alone. The phenomenon may be explained by switching of descending influences on the cortico-rubrospinal system through participation of the loop: corticorubral projection--red nucleus--inferior olive--cerebellum--thalamus--cerebral cortex.
Fanardzhian
V V
VV
Orbeli Institute of Physiology of the Armenian Acad. Sci., 375028, Yerevan, 22 Orbeli Bros. St., Armenia.
Gevorkian
O V
OV
Mallina
R K
RK
Melik-Musian
A B
AB
Meliksetian
I B
IB
D000818:Animals; D003216:Conditioning, Operant / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D008297:Male; D009044:Motor Cortex / Q000502:physiology*; D011712:Pyramidal Tracts / Q000502:physiology*; D051381:Rats; D012018:Reflex / Q000502:physiology*; D013003:Somatosensory Cortex / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology*