Fiber connections of the compact division of the posterior pallial amygdala and lateral part of the bed nucleus of the stria terminalis in the pigeon (Columba livia)
Fiber connections of the compact division of the posterior pallial amygdala and lateral part of the bed nucleus of the stria terminalis in the pigeon (Columba livia)
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DOI：
10.1002/cne.21042
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发表时间：
2006-11-10
影响因子：
2.5
通讯作者：
Wild, J. Martin
中科院分区：
文献类型：
--
作者：
Atoji, Yasuro;Saito, Shouichiro;Wild, J. Martin
后部杏仁核（PoAc）和终纹床核外侧部分（BSTL）的紧凑部分是鸽子大脑边缘系统的组成部分。在这项研究中，我们通过使用尼氏染色和纤维束追踪方法检查了这两个核的位置和纤维连接。 PoAc 占据大脑皮层杏仁核后部的中央部分。 BSTL 面向侧脑室的腹角，并在 A 7.25 和 A 10.50 之间延伸。 PoAc 和 BSTL 通过终纹双向连接。 PoAc 与大脑中的两个核群相互连接：1）由尾腹侧巢状皮质、尾腹侧巢状皮质外侧部分（NCVI）、NCVI 下方的巢状皮质下和梨状皮层组成的连续体；2）半球的吻端区域，包括额外侧和额内侧巢状皮质以及大脑的密细胞部分。大脑皮层过度。 PoAc 的端脑外投射终止于丘脑背内侧核，并通过枕中脑束的下丘脑部分到达下丘脑外侧区域。 BSTL 还与两个主要区域相互连接：1）与 PoAc 投影相同的连续体，梨状皮层除外；2）半球的吻端区域，包括嗅结节和伏隔核。端脑外与黑质、背蓝下核、臂旁核、蓝斑和孤束核有相互连接。海马结构的背内侧细分大量投射到 PoAc 和 BSTL。这些发现表明，PoAc 和 BSTL 是互连神经回路的重要组成部分，涉及神经轴的广泛区域并介导边缘内脏功能。
The compact division of the posterior pallial amygdala (PoAc) and lateral part of the bed nucleus of the stria terminalis (BSTL) are components of the limbic system in the pigeon brain. In this study, we examined the position and fiber connections of these two nuclei by using Nissl staining and tract-tracing methods. PoAc occupies a central division in the posterior pallial amygdala. BSTL faces the ventral horn of the lateral ventricle and extends between A 7.25 and A 10.50. PoAc and BSTL connect bidirectionally by the stria terminalis. PoAc connects reciprocally with two nuclear groups in the cerebrum: 1) a continuum consisting of the caudoventral nidopallium, lateral part of the caudoventral nidopallium (NCVI), subnidopallium beneath NCVI, and piriform cortex and 2) rostral areas of the hemisphere, including the frontolateral and frontomedial nidopallium and the densocellular part of the hyperpallium. Extratelencephalic projections of PoAc terminate in the dorsomedial thalamic nuclei and reach the lateral hypothalamic area via the hypothalamic part of the occipito-mesencephalic tract. BSTL also connects reciprocally with two main regions: 1) the same continuum as for PoAc projections, except the piriform cortex and 2) rostral areas of the hemisphere, including the olfactory tubercle and nucleus accumbens. Extratelencephalic reciprocal connections are with the substantia nigra, nucleus subceruleus dorsalis, parabrachial nucleus, locus coeruleus, and nucleus of the solitary tract. The dorsomedial subdivision of the hippocampal formation projects massively to PoAc and BSTL. These findings indicate that PoAc and BSTL are important components of an interconnected neural circuit involving widespread regions of the neuraxis and mediating limbic-visceral functions.