Dynamics of defense and feeding conditioned reactions in the snail during long-term sensitization.

An intensification of the defense reaction and a significant decrease in the consumption of food take place, the development of the defense conditioned reflex is facilitated, and the development of the feeding reflex deteriorates in the snail in the presence of long-term sensitization. The results suggest that the formation of the state of long-term sensitization is accompanied by the formation of a dominant defense focus.