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首页> 外文期刊>The Journal of Comparative Neurology >Cytoarchitecture and cortical connections of the posterior cingulate and adjacent somatosensory fields in the rhesus monkey.
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Cytoarchitecture and cortical connections of the posterior cingulate and adjacent somatosensory fields in the rhesus monkey.

机译：猕猴后扣带回和邻近体感场的细胞结构和皮质连接。

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摘要

The cytoarchitecture and connections of the caudal cingulate and medial somatosensory areas were investigated in the rhesus monkey. There is a stepwise laminar differentiation starting from retrosplenial area 30 towards the isocortical regions of the medial parietal cortex. This includes a gradational emphasis on supragranular laminar organization and general reduction of the infragranular neurons as one proceeds from area 30 toward the medial parietal regions, including areas 3, 1, 2, 5, 31, and the supplementary sensory area (SSA). This trend includes a progressive increase in layer IV neurons. Area 23c in the lower bank and transitional somatosensory area (TSA) in the upper bank of the cingulate sulcus appear as nodal points. From area 23c and TSA the architectonic progression can be traced in three directions: one culminates in areas 3a and 3b (core line), the second in areas 1, 2, and 5 (belt line), and the third in areas 31 and SSA (root line). These architectonic gradients are reflected in the connections of these regions. Thus, cingulate areas (30, 23a, and 23b) are connected with area 23c and TSA on the one hand and have widespread connections with parieto-temporal, frontal, and parahippocampal (limbic) regions on the other. Area 23c has connections with areas 30, 23a and b, and TSA as well as with medial somatosensory areas 3, 1, 2, 5, and SSA. Area 23c also has connections with parietotemporal, frontal, and limbic areas similar to areas 30, 23a, and 23b. Area TSA, like area 23c, has connections with areas 3, 1, 2, 5, and SSA. However, it has only limited connections with the parietotemporal and frontal regions and none with the parahippocampal gyrus. Medial area 3 is mainly connected to medial and dorsal sensory areas 3, 1, 2, 5, and SSA and to areas 4 and 6 as well as to supplementary (M2 or area 6m), rostral cingulate (M3 or areas 24c and d), and caudal cingulate (M4 or areas 23c and d) motor cortices. Thus, in parallel with the architectonic gradient of laminar differentiation, there is alsoa progressive shift in the pattern of corticocortical connections. Cingulate areas have widespread connections with limbic, parietotemporal, and frontal association areas, whereas parietal area 3 has more restricted connections with adjacent somatosensory and motor cortices. TSA is primarily related to the somatosensory-motor areas and has limited connections with the parietotemporal and frontal association cortices. J. Comp. Neurol. 469:37-69, 2004.
机译：在恒河猴中研究了尾部扣带回和内侧体感区的细胞结构和连接。从脾后区30到内侧顶叶皮质的等皮质区域开始有逐步的层状分化。当一个人从区域30朝着包括3、1、2、5、31和补充感觉区域（SSA）在内的顶壁内侧区域行进时，这包括逐渐强调上层的层状组织和整个下层神经元的减少。这种趋势包括第四层神经元的逐渐增加。在扣带状沟的下堤的上岸的区域23c和上堤的过渡体感区（TSA）显示为结点。从区域23c和TSA可以沿三个方向追溯建筑进展：一个在区域3a和3b（核心线）达到顶点，第二在区域1、2和5（皮带线）达到顶点，在区域31和SSA达到第三方向。 （根线）。这些建筑梯度反映在这些区域的联系中。因此，扣带区域（30、23a和23b）一方面与区域23c和TSA相连，另一方面与顶颞，额叶和海马旁（边缘）区域具有广泛的联系。区域23c与区域30、23a和b以及TSA以及内侧体感区域3、1、2、5和SSA具有连接。区域23c还与顶颞叶，额叶和边缘区域具有连接，类似于区域30、23a和23b。与区域23c一样，区域TSA与区域3、1、2、5和SSA相连。然而，它与顶颞叶和额叶区域的联系有限，而与海马旁回的联系则有限。内侧区域3主要连接到内侧和背侧感觉区域3、1、2、5和SSA，并连接到区域4和6以及补充区域（M2或区域6m），有喙扣带（M3或区域24c和d） ，以及尾带状扣带（M4或区域23c和d）运动皮层。因此，与层流分化的建筑学梯度平行，皮层皮质连接模式也逐渐发生变化。扣带区与边缘区，顶颞叶区和额叶结合区有广泛的联系，而顶叶区3与相邻的体感和运动皮层有更多的限制联系。 TSA主要与体感运动区域有关，与顶颞叶和额叶皮质的联系有限。 J.比较神经元。 469：37-69，2004。

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