All-or-none control of the bursting properties of the pacemaker neurons of the lobster pyloric pattern generator.
All-or-none control of the bursting properties of the pacemaker neurons of the lobster pyloric pattern generator.
复制标题
对龙虾幽门模式发生器的起搏神经元的爆发特性进行全或全控制。
DOI：
10.1002/neu.480130506
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
I. Cournil
中科院分区：
文献类型：
--
作者：
M. Moulins;I. Cournil
在甲壳纲动物中，幽门运动节律（向中肠过滤）的中枢模式发生器已知位于口胃神经节（STG）内；其循环活动已知是由三个作为起搏器的内源性爆发神经元组织的，并驱动11个跟随神经元。在美洲螯龙虾中，对分离的口胃神经系统的记录（图1）表明：（1）只有当STG有传入神经（即与更靠近头部的食管神经节和连合神经节相连）时，才能产生幽门输出（图2）；（2）STG去传入神经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输入的操作有力地表明：（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。
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.
通过选择性失活已识别的神经元来确定龙虾口胃神经节模式生成的机制。
影响因子：
2.5
作者：
Selverston,AI;Miller,JP
通讯作者：
Miller,JP