Fabri M, Burton H
Institute of Human Physiology, University of Ancona, Italy.
Brain Res. 1991 Jan 11;538(2):351-7. doi: 10.1016/0006-8993(91)90455-5.
Thalamocortical connections between ipsilateral thalamus and the first somatic sensory area were traced with simultaneous injections of different fluorescent tracers. Labeled neuronal elements in the antero-medial part (POm) of the posterior nucleus (PO) were topographically organized as an up-right body representation that mirrored a map in the ventroposterior nuclei (VP). No topography was observed in the posterior part of PO. These findings suggest POm in rodents provides precisely organized projections, parallel with those from VP.
通过同时注射不同的荧光示踪剂来追踪同侧丘脑与第一躯体感觉区之间的丘脑皮质连接。后核(PO)前内侧部分(POm)中标记的神经元成分按地形组织成一个直立的身体表征,该表征反映了腹后核(VP)中的图谱。在PO的后部未观察到地形。这些发现表明,啮齿动物的POm提供了精确组织的投射,与来自VP的投射平行。