1.   However, in some situations, grey squirrels seem to rely on spatial memory to retrieve nuts.

2.   Participants in the study were tested for memory, word and picture recognition and for spatial memory.

3.   Some say that forming spatial memories is the main role of the hippocampus.

4.   The Arizona group was interested in spatial memories.

5.   The mouse hippocampus has about a million large, complex nerve cells known as place cells because of their role in recording spatial memories.

6.   The problems arise in two key areas of the brain related to spatial memory and associative learning.

7.   With this economy, the mouse can hold a large number of spatial memories in its hippocampus even though each memory uses half the cells.