1. Italian Institute of Technology, Via E. Melen 83, 16152 Genova, Italy
2. Computational Biomedicine, Institute for Advanced Simulation (IAS-5) and Institute of Neuroscience and Medicine (INM-9), and JARA-Institute “Molecular Neuroscience and Neuroimaging” (INM-11), Forschungszentrum Jülich, Jülich 52425, Germany
3. Physics Department, RWTH Aachen University, Aachen 52074, Germany