1. Institute of Thermomechanics, Branch Brno, Academy of Science of the Czech Republic, Technická 2, 61669 Brno, Czech Republic
2. Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
3. Laboratoire de Neurocardiologie, EA4612, Université Lyon 1, 69003 Lyon, France