Divac I, Mogensen J, Petrovic-Minic B, Zilles K, Regidor J
Institute of Neurophysiology, School of Medicine, University of Copenhagen, Denmark.
Acta Neurobiol Exp (Wars). 1993;53(2):425-9.
Deposits of somatopetal tracers, that filled the entire dorsolateral cortex of one hemisphere, labelled only a few cell bodies in the thalamic mediodorsal nucleus (MD). Further experiments served to confirm the existence of strong projections from MD to the mesial and suprarhinal areas of the frontal cortex. Thus, only a very small proportion of the MD neurones in the rat projects outside the cortical areas described first by Leonard (1969). We conclude that at least in the rat, cortical projections of the MD are selective enough to be used as the basis for definition of the prefrontal cortex.
躯体向心性示踪剂的沉积物充满了一个半球的整个背外侧皮质，却只标记了丘脑背内侧核（MD）中的少数细胞体。进一步的实验证实了从MD到额叶皮质内侧和鼻上区域存在强投射。因此，大鼠中只有极小比例的MD神经元投射到伦纳德（1969年）首次描述的皮质区域之外。我们得出结论，至少在大鼠中，MD的皮质投射具有足够的选择性，可作为定义前额叶皮质的基础。
