Niels Birbaumer is a psychologist and neurobiologist. He is a leading figure in the development of brain-computer interfaces, a field he has researched for 40 years, with a focus on treating brain disturbances. He has been awarded numerous international honours and prizes, including the Gottfried Wilhelm Leibniz Prize and the Albert Einstein World Award of Science. Professor Birbaumer is co-director of the Institute of Behavioural Neurobiology at the University of Tübingen in Germany, and senior researcher at the Wyss Centre for Bio- and Neuro-engineering in Switzerland. Jörg Zittlau is a freelance journalist and writes about science, psychology, and philosophy, among other topics. He is also the author of several bestsellers. David Shaw works as a journalist for Germany's international broadcaster, Deutsche Welle, as well as translating from several languages, including German, Dutch, Russian, and French. He lives in Berlin.