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首页> 外文期刊>The Journal of Experimental Biology >COMPARATIVE STUDY ON NEURAL OSCILLATION IN THE PROCEREBRUM OF THE TERRESTRIAL SLUGS INCILARIA BILINEATA AND LIMAX MARGINATUS
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COMPARATIVE STUDY ON NEURAL OSCILLATION IN THE PROCEREBRUM OF THE TERRESTRIAL SLUGS INCILARIA BILINEATA AND LIMAX MARGINATUS

机译：陆生斜纹夜蛾和马格里纳斯前庭神经振荡的比较研究

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Coherent oscillatory activities in procerebral neurones have been described in Limax maximus; however, the electrical properties of the procerebrum of other terrestrial molluscs are less well understood, We have examined oscillatory activity in the procerebrum of lncilaria bilineata and Limax marginatus. The local field potential measured in the procerebrum of I. bilineata showed repetitive peaks which had the opposite polarity from those measured in L. marginatus. Optical measurement of membrane potential using a potential-sensitive dye, di-4-ANEPPS, showed that the oscillations in I, bilineata occurred mainly in the internal mass while those in L. marginatus were located in the cell mass, An analysis of the waveform revealed that the depolarizing phase of the oscillations consists of both a slow and a rapid component in both species, The rapid component was most pronounced in the internal mass of I, bilineata but was prominent in the cell mass of L. marginatus. The superior tentacle nerve, which projects to the terminal mass, also showed oscillations in synchrony with those of the procerebrum, These results suggest that oscillations in procerebral interneurones are commonly generated in a region adjacent to the terminal mass and that these oscillations may affect the membrane potential of the neurones constituting the superior tentacle nerve. [References: 20]
机译：Limax maximus中描述了前脑神经元的相干振荡活动。然而，其他陆生软体动物前脑的电学特性尚不为人所知。我们已经研究了黑线虫和Limax边缘前脑的振荡活动。在双歧伊蚊的前脑中测量的局部场电势显示出重复的峰，该峰具有与在边缘乳杆菌中测量的相反的极性。使用电势敏感染料di-4-ANEPPS进行膜电势的光学测量表明，I，bilineata的振荡主要发生在内部质量中，而边缘利什曼原虫的振荡发生在细胞质量中，波形分析揭示了振荡的去极化阶段在两个物种中均由慢速和快速两个部分组成。该快速的部分在双峰线虫的内部质量中最明显，而在边缘利什曼虫的细胞质量中则很明显。触手上端神经伸向终末肿块，也显示出与前脑同步的振荡。这些结果表明，大脑中神经元的振荡通常在终末肿块附近的区域产生，并且这些振荡可能影响膜触手上神经的神经元的潜力。 [参考：20]

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