Chandler H C, King V, Corwin J V, Reep R L
Department of Neurological Surgery, University of Florida, Gainesville 32610.
Neurosci Lett. 1992 Aug 31;143(1-2):237-42. doi: 10.1016/0304-3940(92)90273-a.
The neuronal connections of rat posterior parietal cortex (PPC) have been examined using retrograde fluorescent axonal tracers. We have found that PPC receives thalamic input predominantly from the lateral posterior and lateral dorsal nuclei, and not from the ventrobasal nucleus, which projects to the rostrally adjacent hindlimb cortex, or from the dorsal lateral geniculate nucleus, which projects to the caudally adjacent visual association area. PPC has reciprocal corticocortical connections with medial agranular cortex and orbital cortex; together, these three cortical areas may function as a network for directed attention in rats.
利用逆行荧光轴突示踪剂对大鼠后顶叶皮质（PPC）的神经元连接进行了研究。我们发现，PPC主要从后外侧核和背外侧核接受丘脑输入，而非来自投射至其前方相邻后肢皮质的腹基底核，也不是来自投射至其后方相邻视觉联合区的外侧膝状体背核。PPC与内侧无颗粒皮质和眶皮质有相互的皮质皮质连接；这三个皮质区域共同作用，可能构成大鼠定向注意力的一个网络。
