Grant K, Horcholle-Bossavit G
J Physiol. 1986 Feb;371:317-27. doi: 10.1113/jphysiol.1986.sp015977.
Rubral projections to retractor bulbi motoneurones were investigated by intracellular recording in the accessory abducens nucleus in the cat. Their post-synaptic effects were compared with those of trigeminal afferent pathways. Post-synaptic potentials evoked by stimulation of the contralateral red nucleus were predominantly excitatory, with latencies in the monosynaptic range. Post-synaptic potentials evoked by stimulation of the ipsilateral red nucleus, at threshold, were predominantly inhibitory with latencies indicating a di- or trisynaptic pathway. At above threshold intensity, an earlier excitatory post-synaptic potential (e.p.s.p.) preceded the inhibitory post-synaptic potential (i.p.s.p.) in about half the recorded neurones. Convergence of rubral and trigeminal inputs was also observed in other neurones, not identified as retractor bulbi motoneurones, but situated within the accessory abducens nucleus.
通过对猫的副展神经核进行细胞内记录，研究了红核向眼球退缩运动神经元的投射。将它们的突触后效应与三叉神经传入通路的效应进行了比较。刺激对侧红核诱发的突触后电位主要为兴奋性，潜伏期在单突触范围内。刺激同侧红核在阈值时诱发的突触后电位主要为抑制性，潜伏期表明为二突触或三突触通路。在高于阈值强度时，约一半被记录的神经元中，抑制性突触后电位（i.p.s.p.）之前有一个较早的兴奋性突触后电位（e.p.s.p.）。在其他未被确定为眼球退缩运动神经元但位于副展神经核内的神经元中，也观察到了红核和三叉神经输入的汇聚。
