Anatomical evidence for the posterior boundary of area 2 in the macaque monkey.
Anatomical evidence for the posterior boundary of area 2 in the macaque monkey.
复制标题
猕猴区域 2 后边界的解剖学证据。
DOI：
10.1080/08990229970438
复制
发表时间：
1999
影响因子：
0.9
通讯作者：
VanEss,DC
中科院分区：
文献类型：
--
作者：
Lewis,JW;Burton,H;VanEss,DC
本研究利用髓磷脂和尼塞尔染色加上SMI-32抗体的免疫组织化学标记，研究了猕猴顶叶内沟（IPS）尖端附近初级体感皮层的结构组织。通过相对较轻的SMI-32免疫反应性，将IPS和中央沟之间的表面皮层（重叠区域2）与周围皮层（重叠区域1和5）区分开来。这种独特的结构特征在后中央凹陷和IPS尖端前的皮层之间最为明显。生理映射证实，结构转换与感受野属性的变化相关，与它们标记2区和5区之间的边界一致。这些结果表明，2区占据了IPS前部的表面皮层，而不是IPS内部。
This study examined the architectonic organization of the macaque's primary somatosensory cortex near the tip of the intraparietal sulcus (IPS), using myelin and Nissl stains plus immunohistochemical labeling with the SMI-32 antibody. The surface cortex between the IPS and central sulcus (overlapping area 2) was distinguished from surrounding cortex (areas 1 and 5) by relatively light SMI-32 immunoreactivity. This distinguishing architectonic feature was most evident between the post-central dimple and cortex immediately anterior to the tip of the IPS. Physiological mappings verified that the architectonic transition correlated with a change in receptive field properties, consistent with their marking the boundary between areas 2 and 5. These results suggest that area 2 occupies surface cortex anterior to the IPS, but not within the IPS.