David Washburn a cognitive scientist, uses video games to investigate various monkey psychological processes. For instance, in his research about how macaques explore virtual mazes, he employed the following device:

The apparatus is used for computer task research with rhesus monkeys. The monkey reaches through the mesh of his home cage to manipulate a joystick, which in turn controls the movements of a cursor on the screen. Pellet rewards are automatically dispensed upon successful completion of each trial.