So this same dopamine system that gets addicted to drugs, that makes you freeze when you get Parkinson's disease, that contributes to various forms of psychosis, is also redeployed to value interactions with other people and to assign value to gestures that you do when you're interacting with somebody else.
于是，这个可以让人吸毒成瘾的多巴胺系统， 这个可以让人在得了帕金森症后无法动弹的， 同时也可以引起多种形式精神疾病的系统， 在我们与其他人产生互动时重组， 并且对你与他人互动时的手势 赋予特定的意义。