1. Max Planck Institute for Biological Cybernetics, 72076 Tübingen, Germany
2. N.N. Vorozhtsov Institute of Organic Chemistry SB RAS, 630090 Novosibirsk, Russia
3. Novosibirsk State University, 630090 Novosibirsk, Russia
4. Department for Biomedical Magnetic Resonance, University of Tübingen, 72074 Tübingen, Germany
5. Laboratory of Molecular and Cellular Neuroimaging, International Center for Primate Brain Research (ICPBR), Center for Excellence in Brain Science and Intelligence Technology (CEBSIT), Chinese Academy of Sciences (CAS), Shanghai 200031, People’s Republic of China