※ 引述《TKDtarzan (尽全力。)》之铭言： : 从ask-why版看到的 : http://faculty.washington.edu/chudler/tenper.html : 其实这不是重点 : 重点是想请高手解释一下这段 : Furthermore, from an evolutionary point of view, : it is unlikely that larger brains would have developed if there was not : an advantage. : Certainly there are several pathways that serve similar functions. : For example, there are several central pathways that are used for vision. : This concept is called "redundancy" and is found throughout the nervous : system. : Multiple pathways for the same function may be a type of safety mechanism : should one of the pathways fail. 原文我还没看完。 我先翻一下这段。有翻错就帮我纠正一下 xD 翻译： 从演化的角度来看，发展出大的脑却没有优势是一件不幸运的事。 正确来说同一个功能，其实有着不同的路径。举例来说，视觉历程就有好几个主要的路径 。这种观念叫做"redundancy"(多余的意思)，这是从神经系统观察到的。相同的功能有多 个路径也有可能是一种保护的机制，预防有路径损毁。 --

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