Our research goal is to determine how visual location is coded in the brain. Location is not the simple registration of retinal location, even when compensated for head and eye movements. Location is instead computed by a sophisticated, predictive system that constructs target locations based on, most importantly, their motion. The central unanswered questions that we will address are where and how location is coded and whether the spatial attention system is based in saccade or perceptual coordinates. This is of fundamental importance for understanding both the nature of attentional and position misjudgment deficits, as well as providing a basis for developing new therapies and prosthetics for counteracting such deficits, whether in the domain of attention, wayfinding, or dyslexia.