Tokuno H, Takada M, Nambu A, Inase M
Department of Morphological Brain Science, Faculty of Medicine, Kyoto University, Japan.
Exp Brain Res. 1995;106(2):351-5. doi: 10.1007/BF00241130.
Direct projections from the supplementary motor area (SMA) to the red nucleus were investigated in the Japanese monkey (Macaca fuscata). The anterograde tracer, horseradish peroxidase conjugated to wheat germ agglutinin (WGA-HRP), was injected into various regions of the SMA after intracortical microstimulation mapping. After WGA-HRP injection into the orofacial, forelimb, or hindlimb region of the SMA, anterogradely labeled axon terminals were found, respectively, in the medial, intermediate, or lateral portion of the parvocellular part of the red nucleus, bilaterally with an ipsilateral predominance. The results indicate the clear somatotopical arrangement of corticorubral projections from the SMA.
在日本猕猴（食蟹猴）中研究了辅助运动区（SMA）到红核的直接投射。在皮层内微刺激图谱绘制后，将与小麦胚芽凝集素结合的辣根过氧化物酶（WGA-HRP）这种顺行示踪剂注入SMA的各个区域。将WGA-HRP注入SMA的口面部、前肢或后肢区域后，分别在红核小细胞部的内侧、中间或外侧部分发现了顺行标记的轴突终末，双侧均有，且同侧占优势。结果表明SMA的皮质红核投射存在明显的躯体定位排列。
