If you have problems during those years of life, you could become an anal personality, according to Freud, And, according to Freud, literally, it meant you are unwilling to part with your own feces.

据弗洛伊德的理论,如果你在那几年里你出了问题，那么你就会形成肛门期人格，根据弗洛伊德的理论，这就表示，你不愿意排泄粪便。

耶鲁公开课 - 心理学导论课程节选

So during those years, from 3 to 46, We believed that that part of his brain did not develop in the natural way, because it was deprived of the kind of stimuli to develop in the normal way.

因此，从他3岁到46岁的这些年里，我们认为这部分大脑,没有正常发育，因为没有正常情况下的那些刺激。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选