ABSTRACT
Knowing where things are and keeping track of them as we move about underlies many of our interactions in the world. In fact, our lives literally depend on knowledge of place and space, knowing where our kin and foe are, knowing where to find food and where to avoid danger. Spatial knowledge is so vital that it is accessed by all of our senses, first and foremost sight, but also sound, touch, and smell. There are even those who can taste the sea air.
