TABLE 1

An example of the order of discriminations used in the ASST of rats that were shifted from digging media to odors as the relevant dimension

The correct exemplar is shown in bold and was paired with either of two exemplars from the irrelevant dimension across trials within each discrimination problems, (i.e., at the CD phase, the shredded paper was paired with either spicy or vanilla odor, etc). In the IDS and EDS, there were novel pairs of exemplars for each dimension. The combination of exemplars into positive and negative stimuli and their spatial presentation in the cage was a pseudorandom series determined in advance.