This pUblication comprises the proceedings of a conference held at the State University of New York at Stony Brook, Stony Brook, New York, June 5 -9, 1974. The conference was jointly sponsored by the Department of Psychiatry and Behavioral Science at SUNY, Stony Brook, the Institute for Sex Research at Indiana University, and the Editor of this journal. Financing for the conference came from the National Institute of Mental Health. The initial planning for the conference was a shared effort of Stanley F. Yolles, Paul Gebhard, Richard Green, and Eli A. Rubinstein. In addition to the planning of the conference and the selection of participants, all four served as program coordinators during the conference to help ensure productive use of the limited time available. Grateful acknowledgment is given for the advice and con­ sultation of Jack Wiener, George Renaud, and Betty Pickett of the NIMH, who provided assistance in the development of the conference plans. The selection of participants was planned to permit a wide sampling of researchers working in areas of significance to the future of sex research. The titles of the papers listed in the table of contents reveal this broad approach. Furthermore, the remaining participants were included as individuals whose re­ search and scholarly interests would ensure a multidisciplinary approach to the topics under discussion.