but at the same time, attention is not at the mercy of the environment—it’s also under your own control, so that an internal directive can shift attention from item to item. Above all, attention can shift easily between very different domains of information. It can be directed to spatial locations (the main property of attention that has been incorporated into artificial systems so far), but can also be focused on color, movement, taste, tactile pressure, or even something internal like a memory or an idea.