Martens studied counterpoint, harmony, composition and film music between 1968 and 1972 with Nadia Boulanger and Darius Milhaud at the Conservatoire National Supérieur de Musique in Paris in France. He participated in the 1970 Master Class "Music Concrete" of Pierre Schaeffer. Martens is a BMI (Broadcast Music Inc.) member. Between 1969 and 1978 he was appointed as Music Supervisor/Coordinator and film composer by the French network. Afterward, he studied between 1978 and 1983 Philosophy and Clinical Psychopathology at Amsterdam University, and in 1985 he completed his study and training in psychoanalysis with Paul-Laurent Assoun (in Paris). In 1997 he earned his PhD Forensic Psychiatry at Tilburg University, The Netherlands. Martens wrote more than 100 articles in international journals and chapters of books. He is a member of the Royal College of |Psychiatrists, UK (Philosophy Group). Since 1996 he has been Chair of the W Kahn Institute of Theoretical Psychiatry and Neuroscience.