@squirrel
Hmmm. Having run mice on the elevated plus maze, I wouldn't call avoidance of the open arms "fear". To me it looks like the mice check out the open arms, find nothing of interest, and then spend their time in the less risky more comfy arms. So the mice with field experience would have experience of things changing, and might decide to check out the open arms again, just in case.
@squirrel
Hmmm. Having run mice on the elevated plus maze, I wouldn't call avoidance of the open arms "fear". To me it looks like the mice check out the open arms, find nothing of interest, and then spend their time in the less risky more comfy arms. So the mice with field experience would have experience of things changing, and might decide to check out the open arms again, just in case.