The Y maze with a social interaction cage was first described by Weber-Stadlbauer et al and replicated by Vuillermont in analyzing social interaction choices in rodents. Sizes are standard for mice and rats, but with the key modification being pair of rectangular wire grid cages. In the protocol, one wire cage contained an unfamiliar rodent (usually same sex as test mouse), and the other one contained a “dummy object.” The Mazeengineers modification of the Y maze includes two removable rectangular wire grid cages for social interaction. This modification is an add on to the regular Y maze and requires separate purchase of the Y maze.