And what she did was she compared the brain function of two groups of people, those interacting live with her or with one of her research associates in a dynamic conversation, and she compared that to the brain activity of people who were watching her talk about the same subject but in a canned video, like on YouTube.
E comparou a atividade cerebral de dois grupos de pessoas, aqueles que interagem ao vivo com ela ou com um dos seus colaboradores numa conversa dinâmica, e comparou isso com a  atividade cerebral das pessoas que a viam a conversar  sobre o mesmo assunto mas em vídeo gravado, como no YouTube.