Journal of Vision. 2007; 7(9):271-271. doi: 10.1167/7.9.271

Journal of Vision. 2006; 6(4):5. doi: 10.1167/6.4.5

Journal of Vision. 2005; 5(12):27-27. doi: 10.1167/5.12.27

Journal of Vision. 2003; 3(9):657-657. doi: 10.1167/3.9.657