Only data from the final performance day were used for analyses. The start of each trial began with the mouse placed on the central platform always facing the same direction. The trial was terminated after 10 min or as soon as the mouse had eaten all eight food rewards. To perform well at this task, the mice had to store information continuously about which arm(s) had already been visited during a particular trial and which had not (working-memory, storing trial-specific information). The behavioral measures recorded were the time to find all eight pellets and the number of errors. Error is defined here as reentering an arm where the food pellet had already been devoured.

NMRI mice

HAWC