Elisevich K V, Hrycyshyn A W, Flumerfelt B A
Neurosci Lett. 1984 Oct 12;51(2):195-200. doi: 10.1016/0304-3940(84)90550-0.
Injections of fluorescent tracers into cat cerebellar cortex gave evidence of collateral axonal branching of neurons situated in the paramedian reticular nucleus. These branched reticulocerebellar projections were distributed to opposing sides of the cerebellum, in particular the anterior lobe and the ansiform lobule. No topographical organization was observed in the PRN. Less than 30% of ipsilaterally projecting reticulocerebellar fibers had contralaterally directed collateral branches. These results are in keeping with a bilateral fastigial projection to the PRN forming a feedback loop circuit through which orthostatic reflexes may be mediated.
向猫小脑皮质注射荧光示踪剂,结果表明位于旁正中网状核的神经元存在轴突侧支分支。这些分支的网状小脑投射分布于小脑的对侧,尤其是前叶和袢状小叶。在旁正中网状核中未观察到拓扑组织。同侧投射的网状小脑纤维中,不到30%有对侧方向的侧支。这些结果与从顶核到旁正中网状核的双侧投射一致,形成了一个反馈回路,通过该回路可能介导立位反射。