Papers like these always excite me, because it really dives into some of the big questions of the field. This study tries to answer the question of, what happens to a behavior function following a medication change? Does the function go away? If a behavior is motivated by escape, did the risperidone get rid of the escape function? Or, just in general, did all behaviors decrease. It is a hard to answer question, with a myriad of consequence depending on the answer. These authors do a solid job of getting us started in this article!