Karl J Zilles is a Professor of Neuroscience at the C & O Vogt Institute of Brain Research at the Heinrich Heine University in Düsseldorf and Director of the Institute of Neuroscience and Medicine at the Research Centre Jülich. His scientific focus is on neurotransmitter receptors and their expression in the normal and pathologically altered cerebral cortex. He is also working on brain mapping using cytoarchitectonical, functional imaging and receptor architectonical methods.