Purchase this article with an account.
or
Journal of Vision. 2010; 10(7):493. https://doi.org/10.1167/10.7.493
Journal of Vision. 2005; 5(8):898. https://doi.org/10.1167/5.8.898
Journal of Vision. 2004; 4(8):88. https://doi.org/10.1167/4.8.88
This PDF is available to Subscribers Only