If you look throughout the nervous system you would find cells that look different in different regions, because of where they're situated in the brain.

如果你仔细检视神经系统,你会发现不同部位的神经细胞,看起来不一样,这取决于它们在大脑中所处的位置

耶鲁公开课 - 生物医学工程探索课程节选

Rather than by forming an image or a picture you put electrodes on the surface of the body and measure the electrical potential as a function of position on the body.

它并不对人进行直接的造影,而是将电极放到身体表面,通过测量该位置电势能,表征该部位的生理状态

耶鲁公开课 - 生物医学工程探索课程节选

Now I isolated these cells maybe from the head region of the embryo, the region that's going to develop into the brain, so that would be a good place to look if you wanted cells that were going to develop into the brain.

现在我可以从胚胎的头部,分离这些细胞,从就要发育成为大脑的这些部位,这是取得你需要的细胞的绝佳位置,如果你想要发育成大脑的细胞的话

耶鲁公开课 - 生物医学工程探索课程节选