1. Department of Integrative Neurophysiology, Center for Neurogenomics and Cognitive Research (CNCR), Neuroscience Campus Amsterdam, VU University, 1081 HV Amsterdam, Netherlands.
2. Department of Molecular and Cellular Neurobiology, CNCR, Neuroscience Campus Amsterdam, VU University, 1081 HV Amsterdam, Netherlands.
3. Unité Neurobiologie Intégrative des Systèmes Cholinergiques, Département de Neuroscience, Institut Pasteur, F-75724 Paris cedex 15, France.
4. CNRS, URA2182, F-75724 Paris cedex 15, France.