Sarica Y, Eti M, Ertekin C
Electroencephalogr Clin Neurophysiol. 1983 Feb;55(2):168-79. doi: 10.1016/0013-4694(83)90185-2.
The spontaneous electromyelogram (EMyeloG) was investigated in 16 cats, some after laminectomy and some by a percutaneous intrathecal technique similar to the human approach. Small diphasic negative-positive waves at less than 50 microV, with short durations, were consistently recorded from the posterior aspect of the spinal cord in both laminectomized and intact cats. It was demonstrated that this kind of background activity is mainly located within the posterior halves of the spinal cord and is strictly dependent on the peripheral inputs producing excitability changes in the gray matter of the posterior horn. Monophasic positive waves of larger amplitude were often recorded from the anterior halves of the spinal cord in both types of recording. However, the amplitude of the background activity of spontaneous EMyeloG was smaller in the percutaneous approach and negative sharp waves (NSWs) of large amplitude were never seen in these intact cats. NSWs were only observed in the majority of the laminectomized cats and were facilitated after spinalization. It was proposed that when the central and peripheral nervous system are intact in awake states, it is impossible to see NSWs either in human subjects or in cats.
对16只猫的自发电脊髓电图（EMyeloG）进行了研究，部分猫在椎板切除术后进行，部分猫采用类似于人体方法的经皮鞘内技术进行。在椎板切除和完整的猫中，均持续从脊髓后部记录到小于50微伏、持续时间短的小双相负正波。结果表明，这种背景活动主要位于脊髓后半部，并且严格依赖于外周输入，这些输入会在后角灰质中产生兴奋性变化。在两种记录类型中，经常从脊髓前半部记录到幅度较大的单相正波。然而，经皮方法中自发电脊髓电图背景活动的幅度较小，并且在这些完整的猫中从未见过大幅度的负锐波（NSW）。NSW仅在大多数椎板切除的猫中观察到，并且在脊髓横断后增强。有人提出，当清醒状态下中枢和外周神经系统完整时，在人类受试者或猫中都不可能看到NSW。
