Pinker, S., & Downing, C. J. (1985). The spatial structure of visual attention.. In M. Posner and O. Marin (Eds.), Attention and Performance XI: Mechanisms of attention and visual search. Hillsdale, NJ: Erlbaum. M. Posner and O. Marin (Eds.), Attention and Performance XI: Mechanisms of attention and visual search. Hillsdale, NJ: Erlbaum.