Homology of neocortical areas in rats and primates based on cortical type analysis: an update of the Hypothesis on the Dual Origin of the Neocortex.
Homology of neocortical areas in rats and primates based on cortical type analysis: an update of the Hypothesis on the Dual Origin of the Neocortex.
复制标题
DOI：
10.1007/s00429-022-02548-0
复制
发表时间：
2023-06
影响因子：
3.1
通讯作者：
Zikopoulos, Basilis
中科院分区：
文献类型：
--
作者：
Garcia-Cabezas, Miguel Angel;Hacker, Julia Liao;Zikopoulos, Basilis
60年前，弗里德里希·萨尼德斯（Friedrich Sanides）将灵长类新皮层切向扩张的起源追溯到爬行动物和哺乳动物异皮层中的两个祖先原基，并提出了新皮层双重起源假说。根据Sanides的说法，在进化过程中，通过在异皮质环内添加逐渐不同的皮质类型的连续同心环，嗅觉旁和海马旁的层状加工梯度得到了扩展。啮齿类动物的环较少，灵长类动物的皮质内部有更多的环。在这篇文章中，我们进行皮质类型分析的成年大鼠，恒河猴，和人类的新皮质提出假说的同源性的皮质区应用的新皮质的双重起源假说的原则。我们发现，在大鼠和灵长类动物的新皮层的外环的区域具有可比的层状阐述，而大多数6层eulaminate在灵长类动物的新皮层的最内环的地区缺乏同源对应的大鼠。我们还表示的拓扑分布的皮质类型的简化平面地图的大脑皮层的单孔类动物，大鼠和灵长类动物。最后，我们提出了一个阐述的假设的双重起源的新皮层的背景下，现代研究的套膜图案，集成的规范套膜部门在脊椎动物胚胎的发展。Sanides假说的更新版本为哺乳动物皮层等级的出现提供了解释，并将指导未来新皮层区域系统发育起源的研究。
Sixty years ago, Friedrich Sanides traced the origin of the tangential expansion of the primate neocortex to two ancestral anlagen in the allocortex of reptiles and mammals, and proposed the Hypothesis on the Dual Origin of the Neocortex. According to Sanides, paraolfactory and parahippocampal gradients of laminar elaboration expanded in evolution by addition of successive concentric rings of gradually different cortical types inside the allocortical ring. Rodents had fewer rings and primates had more rings in the inner part of the cortex. In the present article, we perform cortical type analysis of the neocortex of adult rats, Rhesus macaques, and humans to propose hypotheses on homology of cortical areas applying the principles of the Hypothesis on the Dual Origin of the Neocortex. We show that areas in the outer rings of the neocortex have comparable laminar elaboration in rats and primates, while most 6-layer eulaminate areas in the innermost rings of primate neocortex lack homologous counterparts in rats. We also represent the topological distribution of cortical types in simplified flat maps of the cerebral cortex of monotremes, rats, and primates. Finally, we propose an elaboration of the Hypothesis on the Dual Origin of the Neocortex in the context of modern studies of pallial patterning that integrates the specification of pallial sectors in development of vertebrate embryos. The updated version of the hypothesis of Sanides provides explanation for the emergence of cortical hierarchies in mammals and will guide future research in the phylogenetic origin of neocortical areas.
登录
查看更多内容
影响因子：
5.7
作者：
Barbas H;García-Cabezas MÁ
通讯作者：
García-Cabezas MÁ
灵长类动物前额叶皮层中的锥体细胞：物种之间神经元结构的明显差异。
影响因子：
2.9
作者：
Elston GN;Benavides-Piccione R;Elston A;Manger PR;Defelipe J
通讯作者：
Defelipe J
影响因子：
3.7
作者：
Felleman, Daniel J.;Van Essen, David C.
通讯作者：
Van Essen, David C.
DOI：
10.1111/ejn.13706
发表时间：
2017-10
期刊：
The European journal of neuroscience
影响因子：
--
作者：
García-Cabezas MÁ;Joyce MKP;John YJ;Zikopoulos B;Barbas H
通讯作者：
Barbas H
影响因子：
1.7
作者：
Deakin, J. E.;Graves, J. A. M.;Rens, W.
通讯作者：
Rens, W.