Differential relationships among the 10-Hz rhythmic discharges of sympathetic nerves with different targets.
Differential relationships among the 10-Hz rhythmic discharges of sympathetic nerves with different targets.
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不同目标交感神经10Hz节律放电之间的差异关系。
DOI：
10.1152/ajpregu.1994.267.2.r387
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Orer,HS
中科院分区：
文献类型：
--
作者：
Gebber,GL;Zhong,S;Barman,SM;Paitel,Y;Orer,HS
部分相干性分析用于消除控制交感神经的中央回路（通过其放电反映）对未麻醉或尿素麻醉猫的其他交感神经10hz放电的相干性的影响。在许多情况下，局部化减少了但并没有消除交感神经对放电相关的相干功能在10hz附近的尖峰。这一观察表明，任何神经的10赫兹节律性放电的中心源与其他神经记录的节律性放电的中心源是不相同的。部分相干分析还揭示了不同靶点交感神经10hz节律性放电之间的差异关系。重要的是，在一个实验中观察到的差异关系模式可能与下一个实验相反。尽管差异关系的基础尚不清楚，但可能涉及多个脑干10-Hz振荡器的不均匀耦合和/或控制不同交感神经的脊髓回路之间的不均匀串扰。
Partial coherence analysis was used to remove the influences of the central circuits controlling a sympathetic nerve (as reflected by its discharges) on the coherence of the 10-Hz discharges of other sympathetic nerves in unanesthetized decerebrate or urethan-anesthetized cats. In many cases, partialization reduced but did not eliminate the sharp peak near 10 Hz in the coherence functions relating the discharges of sympathetic nerve pairs. This observation implies that the central sources of the 10-Hz rhythmic discharges of any nerve are not identical to those responsible for the rhythm recorded from any other nerve. Partial coherence analysis also revealed differential relationships among the 10-Hz rhythmic discharges of sympathetic nerves with different targets. Importantly, the pattern of differential relationships observed in one experiment could be the reverse of that in the next. Although the basis for the differential relationships is not yet clear, nonuniform coupling of multiple brain stem 10-Hz oscillators and/or nonuniform cross talk between spinal circuits controlling different sympathetic nerves may be involved.