Rabbit cingulate cortex: cytoarchitecture, physiological border with visual cortex, and afferent cortical connections of visual, motor, postsubicular, and intracingulate origin.
Rabbit cingulate cortex: cytoarchitecture, physiological border with visual cortex, and afferent cortical connections of visual, motor, postsubicular, and intracingulate origin.
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兔扣带皮层：细胞结构、与视觉皮层的生理边界以及视觉、运动、皮下后和扣带内起源的传入皮层连接。
DOI：
10.1002/cne.902480106
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Weyand,TG
中科院分区：
文献类型：
--
作者：
Vogt,BA;Sikes,RW;Swadlow,HA;Weyand,TG
利用改进的Brodmann细胞结构方案、电生理作图技术、途径示踪剂辣根过氧化物酶（HRP）和硝酸氨基酸，对兔脑扣带皮层与视觉、运动和海马旁皮层的连接进行了评估。兔扣带皮层可分为25区、24区和29区。29区特别值得关注，因为29d区有外侧延伸，有颗粒层IV， 29b区有尾侧延伸，其连接与前区29b不同，29e区也很突出。根据电生理学的判断，29d区域与17区域的外侧边界非常接近17区域的视野表现的内侧边缘。视觉皮层和扣带皮层之间的主要连接发生在扣带区24b和29d以及视觉区18和17区的内侧部分。区域29d和18之间的投影以松散的地形方式组织，每个区域的吻侧部分和尾侧部分相互连接。17和18区的表面层II - III神经元主要投射到29d区的第1层，而反向投影来自29d区的V层神经元，主要投射到17和18区的第1层。运动区域8的内侧部分投射到区域18和29d，并有一个较小的投射到区域17。锁骨后48区与29d区相互连接，也延伸到29b和c区。锁骨下延伸到29a和29c区，但只延伸到29b区前三分之二，而不是后三分之一。吻侧区29d接受最广泛的固有扣带投射，包括所有主要的细胞结构分裂。29d区和29b区之间的相互联系在地形上似乎是在背风面组织的。29c区向29b区的投射比29b区向29c区投射更多。最后，扣带前皮层29d区主要向24b区投射。综上所述，吻侧29d区与17、18视觉区、8运动区及扣带皮层各分区有广泛的联系。根据这些联系，它可能在兔大脑皮层的联想功能中起关键作用，包括视觉运动整合。
The connections of cingulate cortex with visual, motor, and parahippocampal cortices in the rabbit brain are evaluated by using a modified Brodmann cytoarchitectural scheme, electrophysiological mapping techniques, and the pathway tracers horseradish peroxidase (HRP) and tritiated amino acids. Rabbit cingulate cortex can be divided into areas 25, 24, and 29. Area 29 isof particular interest because area 29d has a lateral extension with a granular layer IV, area 29b has a caudal extension in which the connections differ from anterior area 29b, and there is a prominent area 29e. delineation of the lateral border of area 29d with area 17 closely approximates the medial edge of the visual field representation in area 17 as determined electrophysiologically.The main interconnections between visual and cingulate cortices occur between cingulate areas 24b and 29d and visual areas 18 and medial parts of area 17. Projections between areas 29d and 18 are organized in a loose topographic fashion with rostral parts of each and caudal parts of each being reciprocally connected. Neurons mainly in superficial layer II‐III of areas 17 and 18 project to layer I of area 29d, while the reciprocal projection originates from neurons in layer V of area 29d and project mainly to layer Iof areas 17 and 18.The medial portion of motor area 8 projects to areas 18 and 29d and hasa smaller projection to area 17.Postsubicular area 48 is reciprocally connected with area 29d, and it also projects to areas 29b and c. The subiculum projects to areas 29a and 29c but only to the anterior two‐thirds of area 29b not the posterior one‐third.Rostral area 29d receives the most extensive intrinsic cingulate projections including those from all major cytoarchitectural divisions. Interconnections between areas 29d and 29b appear to be topographically organized inthe rostrocaudal plane. Area 29c projects more heavily to area 29b than vice versa. Finally area 29d projects mainly to area 24b in anterior cingulatecortex.In conclusion, rostral area 29d has extensive connections with visual areas 17 and 18, motor area 8, and all subdivisions of cingulate cortex. In light of these connections, it may play a pivotal role in associative functions of the rabbit cerebral cortex including visuomotor integration.