When bad things happen to children, they often suffer lasting psychological harm well into adulthood — including depression and anxiety. Many scientists are looking into what exactly happens in the developing brain to cause these problems. One Umass psychology professor thinks he may be onto at least one significant reason — hormones. JeffreyBlaustein is talking about his research at Wednesday's Distinguished Faculty Lecture on the Umass-Amherst campus — where he'll receive the Chancellor's Medal.