Thom Oostendorp is associate professor of Medical Physics at the Department Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center in Nijmegen, the Netherlands. He received his MSc from the faculty of Science of the Radboud University in Nijmegen, and his PhD at the Radboud University Medical Center on a study modelling the fetal ECG. His main research interest is in the field of bio-electricity, specifically in the characterization of electric sources within body from measured fields at the body surface, and the computation of the fields produced within the body by electric or magnetic stimulation. In the recent years, he has been involved in the development of methods to determine optimal transducer placement for TMS and tDCS. Thom Oostendorp spends most of his time on teaching students of biomedical science; he was elected “teacher of the year” nine times.