Moulins M, Cournil I
J Neurobiol. 1982 Sep;13(5):447-58. doi: 10.1002/neu.480130506.
In Crustacea the central pattern generator for the pyloric motor rhythm (filtration to the midgut) is known to be located within the stomatogastric ganglion (STG); its cycling activity is known to be organized by three endogenous burster neurons acting as pacemakers and driving 11 follower neurons. In Homarus, recordings from the isolated stomatogastric nervous system (Fig. 1) indicate that (1) the pyloric output can be generated only when the STG is afferented (i.e., connected to the more rostral oesophageal and commissural ganglia) (Fig. 2) and (2) the deafferentation of the STG results in a complete loss of the bursting properties of the pacemaker neurons (Fig. 4). Manipulation of the STG inputs responsible for unmasking the properties of the pacemakers strongly suggests that (1) they are not phasic inputs (Fig. 5) and (2) they are long-term acting inputs (Fig. 6). These results provide evidence for a neural all-or-none control of the bursting properties of the pacemaker neurons of a motor pattern generator.
在甲壳纲动物中，幽门运动节律（向中肠的过滤）的中央模式发生器已知位于口胃神经节（STG）内；其循环活动已知由三个作为起搏器的内源性爆发神经元组织，并驱动11个跟随神经元。在龙虾中，对分离的口胃神经系统（图1）的记录表明：（1）只有当STG有传入神经（即与更靠前的食管和联合神经节相连）时（图2），才能产生幽门输出；（2）STG的传入神经切断会导致起搏器神经元的爆发特性完全丧失（图4）。对负责揭示起搏器特性的STG输入进行操作，有力地表明：（1）它们不是相位性输入（图5）；（2）它们是长期作用的输入（图6）。这些结果为运动模式发生器的起搏器神经元爆发特性的神经全或无控制提供了证据。
