1 Laboratory of Molecular Basis of Behavior, The Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw 02-093, Poland.
2 Laboratory of Imaging Tissue Structure and Function, The Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw 02-093, Poland.
3 Department of Anatomy and Neurology, VCU School of Medicine, Richmond, VA 23298, USA.
4 Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK.