translation.en: So in this way, by doing this kind of test, we can draw cause and effect relationships between the activity of specific neurons in particular circuits and particular behaviors, something that is extremely difficult, if not impossible, to do right now in humans.
translation.zh: 因此，通过做这种试验， 我们可以理清楚 特定神经元在某种回路上的活动 与相应行为的因果关系， 而在人类身上做这些实验