Purchase this article with an account.
or
Journal of Vision. 2007; 7(9):871. https://doi.org/10.1167/7.9.871
Journal of Vision. 2006; 6(6):189. https://doi.org/10.1167/6.6.189
Journal of Vision. 2005; 5(8):878. https://doi.org/10.1167/5.8.878
This PDF is available to Subscribers Only