ROLE OF MEDULLARY RETICULAR NEURONS IN THE INHIBITION OF TRIGEMINAL MOTONEURONS DURING ACTIVE SLEEP
ROLE OF MEDULLARY RETICULAR NEURONS IN THE INHIBITION OF TRIGEMINAL MOTONEURONS DURING ACTIVE SLEEP
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DOI：
10.1016/0014-4886(84)90233-4
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发表时间：
1984-01-01
影响因子：
5.3
通讯作者：
TAIRA, M
中科院分区：
文献类型：
--
作者：
CHASE, MH;ENOMOTO, S;TAIRA, M
确定了在活动睡眠中与咬肌张力产生有关的细胞。在猫的延髓网状结构中观察到一个神经元群体，它被显示为单突触投射到三叉神经运动神经元，并向它们提供抑制性输入。这些神经元表现出一种状态依赖的放电模式，其特征是放电频率的紧张性增加，这与从清醒到安静(NREM[非快速眼动])睡眠到活动睡眠的连续过程中(三叉神经系统内)躯体运动反射活动的紧张性下降平行。这种细胞群在活跃的睡眠中以极高的速率放电，特别是在快速眼球运动期间，此时突触后运动神经元的抑制控制最为突出。这些延髓单位是抑制神经元，负责活动睡眠时三叉神经运动神经元的突触后抑制。
The cells involved in the generation of atonia of the masseter muscles during active sleep were identified. A neuronal population was examined in the medullary reticular formation of the cat which was shown to project monosynaptically to trigeminal motoneurons and provide inhibitory input to them. These neurons exhibited a pattern of state-dependent discharge which was characterized by a tonic increase in firing frequency which paralleled the tonic decrease in somatomotor reflex activity (within the trigeminal system) in the continuum of wakefulness to quiet (NREM [non rapid eye movement]) sleep to active sleep. This population of cells discharge at extremely high rates during active sleep, especially during periods of rapid eye movements, when postsynaptic inhibitory control of motoneurons is most prominent. These medullary units are the inhibitory neurons which are responsible for the postsynaptic inhibition of trigeminal motoneurons during active sleep.