Research at the Univ. of Edinburgh tracked electrical signals in the part of the brain linked to spatial awareness. The study could help us understand how, if we know a room, we can go into it with our eyes shut and find our way around. This is closely related to the way we map out how to get from one place to another.
Scientists found that brain cells, which code location through increases in electrical activity, do not do so by talking directly to each other. Instead, they can only send each other signals through cells that are known to reduce electrical activity. This is unexpected as cells that reduce electrical signaling are often thought to simply suppress brain activity.
Read more: http://www.laboratoryequipment.com/news/2013/01/brain-rhythms-aid-sense-location