Horst M. Müller is Professor (ret.) and Head of the Experimental Neurolinguistics Group at Bielefeld University and at the Center of Cognitive Interaction Technology (CITEC), Germany. He holds degrees and PhDs in Neurobiology and Linguistics and is author/editor of numerous publications in both fields of research. Several research stays, e.g. at the University of California at San Diego, USA and the Center for Brain Research at the Medical University of Vienna, Austria.