1. Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA
2. Max Planck Institute for Biological Cybernetics, Tübingen, Germany
3. Graduate Training Centre of Neuroscience, University of Tübingen, Tübingen, Germany
4. Department of Biomedical Engineering, NJIT, Newark, NJ, USA