
A breakdown of group sizes as described by their correct image. The total number of subjects started at n = 28 during habituation to operant boxes. One mouse was removed from the study at the end of the pairwise discrimination paradigm for failing to learn the task, so n = 27 started at the preswitch stage, as described above. Mice were then pseudorandomized into correct image groups (group 1 = circle/cross; group 2 = heart/star), with graphic examples provided in Figure 5. All 27 mice finished testing successfully at a criterion of at least 70% correct.










