translation.en: In its early days -- these have not been done on humans yet -- but we're working on a variety of studies to try and examine this, and so far we haven't seen overt reactions of any severity to these molecules or to the illumination of the brain with light.
translation.zh: 早期的时候--我们并没有在人体里做实验-- 但是我们做了其他各种研究 来评估这方法 目前为止，我们还没有因这些分子或者 因光照大脑 而产生的严重不良反应