1. Volen Center for Complex Systems, Brandeis University, Waltham, MA, USAyigal@brandeis.edu
2. Volen Center for Complex Systems, Brandeis University, Waltham, MA, USAhgalp@brandeis.edu
3. Volen Center for Complex Systems, Brandeis University, Waltham, MA, USAbjgold@brandeis.edu
4. Volen Center for Complex Systems, Brandeis University, Waltham, MA, USACognitive & Neural Systems, Boston University, Boston, MA, USAhttp://people.brandeis.edu/~sekulervision@brandeis.edu