Erick Janssen, Ph.D., is Professor in Sexology at the University of Leuven, Belgium. In addition, he serves as Director of the Institute for Family and Sexuality Studies (IFSS), Program Director of the IFSS Master program in Sexology, and he is a Senior Research Fellow at the Kinsey Institute at Indiana University, USA.

Dr. Janssen has published extensively on the topics of sexual psychophysiology, sexual dysfunction, sexual risk behavior, sexuality and relationships, hypersexuality, porn use, and sexual aggression. Together with John Bancroft, M.D., he developed the Dual Control Model of Sexual Response. This model, with its focus on individual differences in the propensity for sexual excitation and inhibition, has opened up a new research agenda with wide relevance and is being used and tested by researchers around the world. Dr. Janssen directs the psychophysiological laboratory of the Institute for Family and Sexuality Studies and is involved in research projects with collaborators in the USA, Canada, UK, Portugal, Germany, and the Netherlands.

Dr. Janssen has received a number of scientific awards, including twice the Hugo Beigel Award for best publication in the Journal of Sex Research, and, with his students, the SSTAR Award, the Reiss Theory Award, and the IASR Best Student Manuscript Award. Dr. Janssen is Past-President of the International Academy of Sex Research (IASR), founder of international networks of researchers in the field of sexual psychophysiology (SexLab) and of sex researchers in Europe (EuroSex), and he currently serves as Chair of the Scientific Committee of the World Association of Sexual Health (WAS).