Mechanisms of Directed Attention in the Human Extrastriate Cortex as Revealed by Functional MRI Kastner, Sabine ; de Weerd, Peter ; Desimone, Robert ; Ungerleider, Leslie G. Abstract Publication: Science Pub Date: October 1998 DOI: 10.1126/science.282.5386.108 Bibcode: 1998Sci...282..108K