Llamas A, Clascá F, Avendaño C
Departamento de Morfología, Facultad de Medicina, UAM, Madrid, España.
Rev Esp Fisiol. 1989;45 Suppl:139-49.
The amygdaloid complex has been reported to innervate the frontal cortex (prefrontal, premotor and motor cortex) in a variety of mammal species. We have investigated the topographic and laminar distribution of such projections in the cat by using anterograde and retrograde axonal transport of HRP and WGA-HRP. Premotor and medial prefrontal cortices, receive abundant projections from the basal magnocellular amygdaloid nucleus, while rostrolateral prefrontal or caudodorsal motor cortices are almost spared by amygdaloid projections. Striking differences are observed in the laminar patterns of distribution of amygdaloid axons in the various frontal areas. This selective areal and laminar distribution may entail noticeable functional dissimilarities. Possible roles of these neural networks and the concept of "limbic cortex" are discussed in view of these findings.
据报道，在多种哺乳动物中，杏仁核复合体可支配额叶皮质（前额叶、运动前区和运动皮质）。我们通过使用HRP和WGA-HRP的顺行和逆行轴突运输，研究了猫中此类投射的拓扑和层状分布。运动前区和内侧前额叶皮质接收来自基底大细胞杏仁核的丰富投射，而额外侧前额叶或尾背侧运动皮质几乎没有杏仁核投射。在各个额叶区域，杏仁核轴突的层状分布模式存在显著差异。这种选择性的区域和层状分布可能导致明显的功能差异。鉴于这些发现，讨论了这些神经网络的可能作用以及“边缘皮质”的概念。
