1. Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona Biomedical Research Park, 08003 Barcelona, Spain
2. Institute of Mathematics, Technical University Berlin, 10623 Berlin, Germany
3. Bernstein Center for Computational Neuroscience Berlin, 10115 Berlin, Germany
4. Neuronal Dynamics Group, Department of Information and Communication Technologies, Universitat Pompeu Fabra, 08018 Barcelona, Spain