Latent learning is learning that occurs without obvious reinforcement and that remains hidden until a reason to demonstrate it appears. The knowledge is acquired but not yet expressed in performance.

Edward Tolman’s experiments with rats in mazes provided the classic evidence. Animals allowed to explore a maze without food reward later navigated it efficiently once food was introduced, outperforming animals that had never explored. They had formed a cognitive map of the layout during the unrewarded trials. The learning was latent until the incentive made it useful to display.

Latent learning challenges strict stimulus-response accounts that tie learning exclusively to reinforcement. It suggests that organisms acquire information about their environment simply by experiencing it, and that this information can be used flexibly when circumstances change. Human examples include learning the layout of a building while walking through it for other reasons, or absorbing the rules of a game by watching before ever playing.

Not all learning shows itself immediately. Some of it waits for the moment it is needed.