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[刺激中脑网状结构嘴侧部分对猫运动皮层的影响]

[Effect of stimulation of rostral portions of the midbrain reticular formation on the cat motor cortex].

作者信息

Lenkov D N, Seferian E S

出版信息

Zh Vyssh Nerv Deiat Im I P Pavlova. 1976 Nov-Dec;26(6):1268-75.

PMID:1014900
Abstract

Evoked potentials and responses of 139 neurones in the sensorimotor cortex (the lateral third of the posterior sigmoid gyrus) to electrical stimulation of the dorsolateral (DL) and the ventromedial (VM) areas of the mesencephalic reticular formation (MRF) were investigated in cats in acute and chronic experiments. Latencies of the cortical unit responses (in the form of single and multiple discharges) to MRF stimulation varied from 4 to 36 msec for VM (maxima of distribution: 4--10 and 18--24 msec); those for DL were from 4 to 26 msec (maxima of distribution: 4--6 and 14--16 msec). Responses to both DL and VM stimulation were observed in 29 neurones. As for MRF, its effects (mono-and polyvalent) were found in cortical neurones responding to limb electrocutaneous stimulation as well. At 7--10 days after coagulation of the ipsilateral connection between MRF and the pons, persistence of the cortical response main components was recorded, the long-latency part being slightly reduced.

摘要

在急性和慢性实验中,对猫的感觉运动皮层(乙状窦后回外侧三分之一)中139个神经元对中脑网状结构(MRF)背外侧(DL)和腹内侧(VM)区域电刺激的诱发电位和反应进行了研究。皮层单位对MRF刺激的反应潜伏期(以单次和多次放电形式),VM刺激为4至36毫秒(分布峰值:4 - 10毫秒和18 - 24毫秒);DL刺激为4至26毫秒(分布峰值:4 - 6毫秒和14 - 16毫秒)。在29个神经元中观察到对DL和VM刺激的反应。至于MRF,在对肢体皮肤电刺激有反应的皮层神经元中也发现了其效应(单价和多价)。在MRF与脑桥同侧连接凝固后7 - 10天,记录到皮层反应主要成分持续存在,长潜伏期部分略有减少。

相似文献

1
[Effect of stimulation of rostral portions of the midbrain reticular formation on the cat motor cortex].[刺激中脑网状结构嘴侧部分对猫运动皮层的影响]
Zh Vyssh Nerv Deiat Im I P Pavlova. 1976 Nov-Dec;26(6):1268-75.
2
[Effects of stimulating the caudal zones of the mesencephalic reticular formation on the postcruciate cortex of the cat].[刺激猫中脑网状结构尾侧区对猫十字后皮质的影响]
Biull Eksp Biol Med. 1975 Oct;80(10):3-6.
3
[Interaction of reticular structures in the brain of the cat].[猫脑网状结构的相互作用]
Zh Vyssh Nerv Deiat Im I P Pavlova. 1985 Sep-Oct;35(5):891-9.
4
[Responses of sensomotor cortex neurons of rats to stimulation of the midbrain reticular formation].[大鼠感觉运动皮层神经元对中脑网状结构刺激的反应]
Zh Evol Biokhim Fiziol. 1977 May-Jun;13(3):391-7.
5
[Evoked responses and impulse activity of the neocortex during the startle response following stimulation of the midbrain reticular formation].
Zh Vyssh Nerv Deiat Im I P Pavlova. 1980 Jan-Feb;30(1):97-104.
6
[Influence of the mesencephalic reticular formation on the synchronization of cortical evoked potentials].
Zh Vyssh Nerv Deiat Im I P Pavlova. 1977 Jan-Feb;27(1):128-36.
7
[Responses of pericruciate cortex neurons to stimulation of the hypothalamus and reticular formation].[大脑十字沟周围皮质神经元对下丘脑和网状结构刺激的反应]
Fiziol Zh SSSR Im I M Sechenova. 1981 Apr;67(4):484-96.
8
[Electrophysiologic analysis of efferent projections of the cerebellar fastigial nucleus of cats].[猫小脑顶核传出投射的电生理分析]
Fiziol Zh SSSR Im I M Sechenova. 1980 Aug;66(8):1171-80.
9
[Effect of a dominant focus in the midbrain reticular formation on the functional state of the motor analyzer].[中脑网状结构优势灶对运动分析器功能状态的影响]
Zh Vyssh Nerv Deiat Im I P Pavlova. 1980 Nov-Dec;30(6):1272-8.
10
[The effect of stimulation of the deep layers of somatosensory zones CI and CII on the activity of motor zone MI of the cat cortex].
Zh Vyssh Nerv Deiat Im I P Pavlova. 1975 Jul-Aug;25(4):837-43.

引用本文的文献

1
Neocortical evoked responses and spike activity during startling in response to stimulation of the mesencephalic reticular formation.对中脑网状结构进行刺激时,惊吓反应期间的新皮质诱发反应和锋电位活动。
Neurosci Behav Physiol. 1982 May-Jun;12(3):266-72. doi: 10.1007/BF01186278.