Neural control of saccades by the fastigial nucleus

为了了解动眼肌顶核（oFN）在控制扫视中的功能作用，我们使用电生理学和解剖学方法分析了oFN的输入和输出。从oFN的投射密集地终止于外展核的尾侧区域，但很少终止于它的吻侧区域。NRG中的神经元受到oFN的强烈刺激，而NRPc中的神经元几乎没有受到刺激。这些数据表明，NRG中投射到颈部MN的神经元与凝视（眼睛和头部）的运动控制有关。事实上，NRG神经元受到来自对侧上丘的强单突触兴奋和来自同侧上丘的双突触兴奋。

To understand the functional role of the oculomotor fastigial nucleus (oFN) for control of saccades, we analyzed the inputs to and the output from the oFN using electrophysiological and anatomical methods. The projection from the oFN terminated densely in the area caudal to the abducens nucleus, but scarcely in the area rostral to it. Neurons in the NRG received strong excitation from the oFN, whereas neurons in the NRPc received almost no excitation. These data suggested that neurons in the NRG that project to the cervical MN are related to motor control of gaze (eye and head). In fact, NRG neurons received strong monosynaptic excitation from the contralateral superior colliculus and disynaptic excitation from the ipsilateral one.