Behavioral changes along escape learning in toads.

Current learning theories consider escape learning as a variation in response dominance into a "habit family". These responses would integrate a repertory of "species-specific reactions" which is displayed when an aggressive or sudden stimulus is presented. We have found that toads (Bufo arenarum Hensel) show a clear correlation between escape learning performance and different rates of responses. Burrowing responses diminished, and orientation responses towards the door increased along trials, concomitantly with correct responses acquisition.