Two types of rhythmical jaw movements evoked by stimulation of the rat cortex.
Two types of rhythmical jaw movements evoked by stimulation of the rat cortex.
复制标题
刺激大鼠皮层引起的两种有节奏的下颌运动。
DOI：
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Makoto Iwasaki
中科院分区：
文献类型：
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作者：
K. Sasamoto;Guixin Zhang;Makoto Iwasaki
通过刺激大鼠的大脑皮层，诱发两种不同的节奏性下颌运动（RJM）模式，类似于咀嚼运动。第一种类型的 RJM 是从初级下颌运动区诱发的，它总是以持续的下颌张开开始，并由高频（5-7 Hz）简单的下颌张开-闭合运动组成。前二腹肌电图（EMG）活动显示放电明显与每个刺激脉冲时间锁定。第二种类型的 RJM 是由岛叶皮质的腹侧部分诱发的。与第一种类型的 RJM 相比，第二种类型在许多情况下以下颌闭合运动开始。这种类型的RJM具有大而复杂的横向和矢状运动，并且RJM的频率较低（3-4 Hz）。二腹肌肌电图活动未显示刺激锁定成分。这些 RJM 的模式并不取决于刺激的强度或频率，而是取决于刺激的部位。这两个皮质 RJM 区域似乎彼此独立工作，因为一个区域的消融不会影响另一皮质区域诱发的 RJM 模式。
Two different patterns of rhythmical jaw movements (RJM) resembling masticatory movements were evoked by stimulation of the cerebral cortex in the rat. The first type of RJM was evoked from the primary jaw motor area, and it always began with a sustained jaw-opening and consisted of high frequency (5-7 Hz) simple opening-closing movements of the jaw. The anterior digastric electromyographic (EMG) activity showed discharges apparently time-locked to each stimulus pulse. The second type of RJM was evoked from the ventral part of the insular cortex. In contrast to the first type of RJM, the second type started with a jaw closing movement in many cases. This type of RJM had large and complex lateral and sagittal movements and the frequency of RJM was low (3-4 Hz). The digastric EMG activity did not show the stimulus-locked component. The pattern of these RJM did not depend on the intensity or frequency of stimulation, but on the site stimulated. These two cortical RJM areas appeared to work independently from each other, because ablation of one area did not affect the pattern of the RJM evoked from the other cortical area.
豚鼠皮质诱导的节律性下颌运动期间下颌运动与三叉神经运动神经元膜电位波动之间的关系。
影响因子：
2.5
作者：
Goldberg,LJ;Chandler,SH;Tal,M
通讯作者：
Tal,M