Because these technologies were still restricted to medical applications, which meant that we were studying sick brains, not healthy brains.
왜냐면 이런 기술들은 의료용으로 쓰기엔 여전히 제약이 많은데 건강한 뇌가 아닌 병든 뇌를 가지고 연구하기 때문이죠.