Martijn Arns graduated in the late 90’s as a biological psychologist at Radboud University in Nijmegen. After several projects in the field of applied neuroscience in the Westmead Hospital in Sydney, the Max Planck Institute in Munich and Organon Research in Newhouse, he began in 2001 with what is now known as Research Institute Brainclinics and Psychologists Practice Brainclinics. Martijn Arns received his PhD at Utrecht University on the topic of 'EEG-based personalized medicine for ADHD and depression' and is specialized in applying brain imaging techniques to determine the appropriate treatment for patients with ADHD and depression. He is specialized in the development and application of neuromodulation techniques such as neurofeedback in the treatment of ADHD and magnetic brain stimulation (rTMS) in the treatment of depression. Martijn Arns supervises a team of specialized psychologists at Psychology Practice Brainclinics in the application of these techniques. At Research Institute Brainclinics Martijn Arns carries out research into personalized medicine and neuromodulation techniques in collaboration with a team of researchers and various universities. In addition, he teaches several (internationally) accredited training courses such as an ‘rTMS in Depression’ workshop and a ‘Neurofeedback in ADHD’ training course. Martijn Arns is director at Research Institute Brainclinics and Psychology Practice Brainclinics, is associated with Utrecht University, department of experimental psychology, and was founding director of Brainquiry until July 2007. In addition, Martijn Arns serves on the board of directors of the International Pharmaco-EEC Society (IPEG) and is a member of several professional organizations such as the NIP (Dutch Institute of Psychologists), ISNR, ECNS, SAN, AAAS and ISAD. Also see www.brainclinics.com for more background information.