Emotions and neurones.

It was shown previously (Simonov, 1964), that emotion is a function of need and that it estimates the probability (possibility) of its satisfaction. Changes in command neuronal activity of alimentary and defensive behaviour in response to food, showed to a hungry or replete Helix lucorum L., suggest a complex internal organization of the reaction to the external stimulus. Two types of neurones were revealed in the self-stimulation zones the rat hypothalamus, one of them being connected with motivational mechanism, the other with reinforcement. Thus, relative independence of motivations and emotions is also manifested at the neuronal level.