The main brain structure in this task is the hippocampus, located in the medial temporal lobe. The hippocampus forms part of the limbic system and plays a part in long-term memory and spatial navigation, specifically in storing and processing spatial information. Without a fully functional hippocampus, humans may not successfully remember where they have been and how to get where they are going.

The skills called upon in this exercise are constantly used in our daily lives. For example, they are retracing our steps through the house to look for our keys or remembering what an individual did throughout the day. Taxi drivers in cities like New York are good examples of people with excellent spatial memory and navigation skills. They must learn about many places and know the most direct routes between them.

You can modify:

• The exercise mode (fixed level or progressive)
• The number of series (1, 2, 4, 6, 8 or 10)
• The number of stimuli (from 2 to 12)
• The number of stones (from 2 to 12)
• The restitution order (same or reverse)
• Whether there is some help (path is displayed) or not.

Over 2100 unique exercise configurations and significant data set depth.