The spontaneous electrical activity of the spinal cord

The spontaneous electrical activity of the spinal cord
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DOI:
10.3109/13813454109145564
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发表时间:
1941-01-01
期刊:
ARCH INTERNAT PHYSIOL
影响因子:
--
通讯作者:
BREMER, F.
BREMER, F.
中科院分区:
其他
文献类型:
--
作者:
BREMER, F.

文献摘要

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在轻度麻醉的猫中,前部灰质(颈髓)的自发性脑电图以低电压的不规则波为特征;后部(骶腰)区域的自发性脑电图以更低的电压为特征。这些特性是由单个神经元搏动的波动性引起的,因为在某些处理的影响下,不规则波让位于大而规则的正弦波。在皮层和灰质之间存在明显的协同作用,如波组甚至单个波的平行性所示。脊髓电活动对缺氧的耐受性比皮层强得多,但对士的宁的同步作用更敏感。尼古丁产生一种非同步兴奋,没有任何破伤风的迹象,另一方面,士的宁既兴奋又同步。反射波和自发波的相似性表明它们之间的密切关系。并对这一事实及其与中枢反射功能机制的关系作了进一步的讨论。|| 摘要编辑:J. Huble
In the slightly narcotized cat the spontaneous oscillogram of the anterior grey substance (cervical cord) is characterized by irregular waves of low voltage; that of the posterior (sacrolumbar) region by a still lower voltage. These properties result from the asynchronism of the individual neuronic pulsations, since the irregular waves give way to large and regular sinusoidal waves under the influence of certain treatments. There is a clear synergism between the cortex and the grey spinal substance as shown by the parallelism of groups of waves and even of individual waves. The spinal electrical activity is much more resistant to anoxemia than that of the cortex, but more sensitive to the synchronizing action of strychnine. Nicotine produces a non-synchronizing excitation without any sign of tetanus, strychnine on the other hand is both exciting and synchronizing. The similarity of reflex and spontaneous waves indicate their close relationship. This fact and its bearing on the mechanism of central reflex function are further discussed. || ABSTRACT AUTHORS: J. Huble