I get that the best research suggest we don't really have complete redundancy with hemispheres, but suppose that we did.

我知道有实验证明过,我们大脑的多余部分,并不是都分布在左或者右半脑里，但假设多余部分确实分布在半脑里。

耶鲁公开课 - 死亡课程节选

Transfer both hemispheres,one patient or the other wakes up,but never both.

而两个半脑同时被移植时，就只会有一个病人苏醒。

耶鲁公开课 - 死亡课程节选

So, if you were to lose half your brain, the other half can actually do a lot but some things are more prevalent and more powerful in one part of the brain than the other And I want to show you a brief film clip from "Scientific American" that illustrates the differences between the hemispheres, but before doing that,I want to provide some introductory facts.

如果你失去了半个大脑,另外一半其实也可以完成很多功能,但是某些功能是存在单侧化优势的,我给你们播放一段短片,来自于《科学美国人》,它解释了大脑两半球的功能差异,但在此之前,我想先做一些介绍

耶鲁公开课 - 心理学导论课程节选