Purchase this article with an account.
or
Journal of Vision. 2008; 8(6):551. https://doi.org/10.1167/8.6.551
Journal of Vision. 2007; 7(9):693. https://doi.org/10.1167/7.9.693
Journal of Vision. 2003; 3(9):592. https://doi.org/10.1167/3.9.592
This PDF is available to Subscribers Only