Laurent Itti Jochen Braun Christof Koch Modeling the Modulatory Effect of Attention on Human Spatial Vision. 1247-1254 2001 conf/nips/2001 NIPS http://www-2.cs.cmu.edu/Groups/NIPS/NIPS2001/papers/psgz/VS04.ps.gz db/conf/nips/nips2001.html#IttiBK01