1. Psychobiology Laboratory, Division of Psychology, The Australian National University, ACT 0200, Australia
2. Vision, Touch and Hearing Research Centre, The University of Queensland, Queensland 4072, Australia
3. Department of Anatomy and Histology, NSW 2006, Australia
4. Department of Physiology, Institute for Biomedical Research, The University of Sydney, NSW 2006, Australia
5. Nencki Institute of Experimental Biology, 02–093 Warsaw, Poland