Gorbachevskaya A I, Chivileva O G
Laboratory for the Physiology of Higher Nervous Activity, I. P. Pavlov Institute of Physiology, St. Petersburg.
Neurosci Behav Physiol. 1998 Jan-Feb;28(1):17-21. doi: 10.1007/BF02461906.
Experiments carried out on 30 cats using retrograde axonal transport of markers (horseradish peroxidase and luminophores) were used to study the organization of the afferent projection system of the pallidal complex (the globus pallidum, the entopeduncular nucleus, the ventral pallidum) formed by fibers from functionally different cortical and subcortical structures (the ventral tegmental area, the substantia nigra, the amygdaloid body). The distribution of afferent projection fibers in this complex of nuclei led to identification of the following zones: a "limbic" zone, corresponding to the ventral pallidum, and a "motor" zone, corresponding to the caudal part of the globus pallidum. On the one hand, the features of the afferent organization as demonstrated here can be regarded as a structural basis for the functional heterogeneity of the pallidal complex; on the other, significant regions within these structures (the rostral part of the globus pallidum and the entopeduncular nucleus) were found to receive projection fibers from functionally different structures, suggesting the existence of convergence and integration processes in these regions.
利用标记物(辣根过氧化物酶和发光体)的逆行轴突运输对30只猫进行实验,以研究苍白球复合体(苍白球、内苍白球核、腹侧苍白球)传入投射系统的组织情况,该复合体由来自功能不同的皮质和皮质下结构(腹侧被盖区、黑质、杏仁体)的纤维构成。传入投射纤维在这个核复合体中的分布情况使得能够识别出以下区域:一个“边缘”区,对应腹侧苍白球;以及一个“运动”区,对应苍白球的尾部。一方面,此处所展示的传入组织特征可被视为苍白球复合体功能异质性的结构基础;另一方面,发现这些结构内的重要区域(苍白球的嘴侧部分和内苍白球核)接收来自功能不同结构的投射纤维,这表明这些区域存在汇聚和整合过程。