皮层柱

皮层柱英文:Cortical column,亦称hypercolumnmacrocolumn[1]cortical module[2]),是大脑皮层中可以被垂直表面的探针成功穿入的一群神经元,他们拥有几乎相同的感受野微皮层柱(cortical minicolumn)中的神经元只能记录相同特征的信号,而皮层柱则是一个可以记录其相应感受野中全体有效信号的单元。[3]

这个术语的确切所指目前并不清楚,它并不直接对应于皮层中的任何独立结构。不可能找出对应于一个皮层柱的一组神经結構,目前也没有已知的基因訊息能够指出一个皮层柱是如何构建的。[3]尽管如此,这个柱状组织的假设在目前对于皮层訊息处理的研究中被广为接受。[4]

参考文献

  1. Buxhoeveden, D. P. . Brain. 2002, 125 (5): 935. doi:10.1093/brain/awf110.
  2. Kolb, Bryan; Whishaw, Ian Q. . New York: Worth. 2003. ISBN 0-7167-5300-6.
  3. Horton JC, Adams DL. . Philos. Trans. R. Soc. Lond., B, Biol. Sci. 2005, 360 (1456): 837–862. PMC 1569491可免费查阅. PMID 15937015. doi:10.1098/rstb.2005.1623.
  4. Defelipe, Javier. . Frontiers in Neuroanatomy. 2012, 6. doi:10.3389/fnana.2012.00022.

外部链接

  • Graham-Rowe, Duncan. . New Scientist. 6 June 2005 [2014-10-17]. (原始内容存档于2008-10-20). [...] the initial phase of Blue Brain will model the electrical structure of neocortical columns - neural circuits that are repeated throughout the brain. These are the network units of the brain, says Markram. Measuring just 0.5 millimetres by 2 mm, these units contain between 10 and 70,000 neurons, depending upon the species. Once this is complete, the behaviour of columns can be mapped and modelled [...]
  • The Blue Brain Project 页面存档备份,存于 aims to simulate a cortical column
  • On Intelligence—a popular science book about column function by Jeff Hawkins
  • Rakic, P. . Proceedings of the National Academy of Sciences. August 2008, 105 (34): 12099–12100. Bibcode:2008PNAS..10512099R. doi:10.1073/pnas.0807271105. Summarizes what is known and corrects some misconceptions.
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