1. Institute of Neuroinformatics University/ETH Zurich, Zurich CH-8057 Switzerland.
2. Psychobiology Research Unit, Department of Psychology, Tel-Aviv University, Tel-Aviv 69978 Israel.
3. Interdisciplinary Nucleus for Sonic Research, University of Campinas, Brazil.
4. Institute of Neuroinformatics University/ETH Zurich, Zurich CH-8057 Switzerland and Institució Catalana de Reserca I, Estudis Avançats (ICREA) and Technology Department, University Pompeu Fabra, Barcelona 08003 Spain.