Before revision:  Several authors have investigated the effects of including anticipation into models of this type . Key findings include that anticipation inhibits polarized collective motion in alignment based models and promotes milling and swarming in the one attraction-repulsion model studied.
After revision:  Several authors have investigated the effects of including anticipation into models of this type , and have found that anticipation inhibits polarized collective motion in alignment based models and promotes milling and swarming in the one attraction-repulsion model studied.