[Effectiveness of different types of reinforcement in a controlled experiment]

The paper shows the possibility for animals to learn to change the form of their own evoked electrical brain activity in the course of a controlled experiment. The stimulation of the brain and cutaneous pain stimuli served for rats as the reinforcing factor. The presence of two factos, functioning throughout such reinforcement, is shown: specific one, providing for the adaptive change in the evoked response, and non-specific one, always lowering the EP amplitude due to general activation. The learning is successful only in case when both factors act in one direction.