Mental Map

http://www.fedstats.gov/kids/mapstats/concepts_mentalmaps.html

This is an example of a mental map of Nottingham City Center. Mental maps are capable of being completely different from person to person. The person who creates the map can focus on things that someone else might not have. The scale could also be off from one person to the next. In this map, the person was able to recall street curvature and names.