Very few of these languages have been recorded and scientifically documented.

VOA: special.2009.12.02

This refers to the fact that people- this sounds like something you probably already know but it has been documented by psychologists.

指的是人们...,照字面意思,可能你们已经猜到,心理学家已经证明了这一原理

耶鲁公开课 - 金融市场课程节选

For example, people tend to believe that their team will win; this has been documented by psychologists.

比如,人们倾向于相信他们支持的球队会赢,心理学家已经证明了这点

耶鲁公开课 - 金融市场课程节选

So, there's been a number of articles that documented that stock prices tend to jump shortly after options are issued to managers.

有一些文章记载表明,在公司发给经理们股票期权之后,股票的价格往往会出现短期激涨

耶鲁公开课 - 金融市场课程节选