At long last, the first step in a long chain of scientific endeavors is completed. I am excited. I believe that I have been trained well. And so, I would like to thank everyone that has made this possible. But how does my training facilitate acknowledging all of those who have had a major impact on my behavior? First, it gives me a historical perspective. From this perspective I remember the warmth and love that was provided by my parents John and June and the love and competition provided by my brothers, Jack, Mike and Tim. Second, my training provides me with a social, environmental perspective. From this I recall the consistent, immediate support supplied by my friends. Especially, I thank Karen. Third, my training has provided me with a professional perspective. From late night planning, scheming and scamming with Kent Johnson to Tuesday organizing with Beth Sulzer-Azarof f , I have been fortunate to experience the best in behavioral training. Of course, all these categories overlap. There is no simple way to separate the historical from the social or the social from the professional. All that one can do is key in on certain ways that others have been of assistance. Therefore, the last perspective that my training has provided is to be able to isolate the key factors in this specific project. From this, I know to thank each of my committee members, John Donatioe, J.M. Royer and Arnold well, a superb typist, Carol Vreeland, and especially, again, my advisors and friends, Kent Johnson and Beth Sulzer-Azarof