Reading: extinction to ignore people repeated behavior. 意思是行为得不到reward就会停止，最后消失 Listening: 妈妈带小孩儿到grocery，小孩儿一看到cookie就大哭不止，妈妈怕丢人妥协买了cookie；以后小孩儿还会这样；妈妈为了让小孩儿停止这种坏习惯，在小孩儿哭得时候，ignore him， allow him crying；以后小孩儿就不这样了。
The lecture talks about a psychological phenomenon that when a specific behavior is ignored without proper rewards, the behavior tends to stop and extinct in the end. The professor talks about an example. In a grocery, if a mother compromises and buys her child cookies in order to stop his crying, the child tends to do the same thing next time. In order to stop the bad habit, next time when the child cries in the grocery, the mother should ignore him and leave him crying. When the child realizes that cry does not help, he will not do it next time. (102 words)
