Fabian T. Ramseyer is a habilitated senior researcher at FernUni Schweiz, Switzerland and the University of Bern, Switzerland. He works in clinical practice, research, and in his own startup selling customized video-technology hardware. During his PhD, Fabian developed an automated tool for the assessment of nonverbal synchrony in videotaped psychotherapy sessions, called motion energy analysis (MEA). This computer application has been freely available since 2012 and its application is now documented with over 90 publications from independent international research groups and in more than 40 own publications using MEA. Apart from his focus on nonverbal behavior, Fabian has explored various aspects of time-series data from psychotherapy sessions. He bases his approach to the time-varying aspects of human behavior and experience on the perspective of dynamic systems theory. Using this theoretical framework, he seeks to combine both idiographic- as well as nomothetic approaches to psychotherapy process-research and other aspects of human psychology.