And so, usually the way people do this is they look at faces or they use neural imaging.
因此，通常人们这样做的方式是观察面孔或使用神经成像。
英语百科
Neural engineering
Neural engineering (also known as neuroengineering) is a discipline within biomedical engineering that uses engineering techniques to understand, repair, replace, enhance, or otherwise exploit the properties of neural systems. Neural engineers are uniquely qualified to solve design problems at the interface of living neural tissue and non-living constructs.