Krubitzer L
Dept of Psychology, University of California, USA.
Trends Neurosci. 1995 Sep;18(9):408-17. doi: 10.1016/0166-2236(95)93938-t.
By examining a variety of mammals, it is possible to determine common features of cortical organization, and from these infer homologies across species. Such analysis also enables differences in the organization of the neocortex to be identified. Species differ in the amount of cortex that is devoted to a particular sensory system, in the size and configuration of a cortical field, in the number of cortical fields, and in the pattern of connections of homologous fields. It is suggested that the plan of organization that is retained is the result of homologous developmental events, and that modifications to this plan are generated by a limited set of mechanisms. These types of changes to the common network might account for the sensory and behavioural diversity that is observed in extant mammals.
通过研究各种哺乳动物，可以确定皮质组织的共同特征，并据此推断不同物种间的同源性。这种分析还能识别新皮质组织的差异。不同物种在分配给特定感觉系统的皮质量、皮质区域的大小和形态、皮质区域的数量以及同源区域的连接模式等方面存在差异。有人认为，保留下来的组织模式是同源发育事件的结果，而对该模式的修改是由一组有限的机制产生的。共同网络的这些类型的变化可能解释了现存哺乳动物中观察到的感觉和行为多样性。
