[The effects of the orbital cortex on the neuronal activity of the tegmentum mesencephali in a food reflex in cats].

In chronic experiments on cat influences of functional exclusion of the orbital cortex on the rearrangement neuronal activity of the midbrain tegmentum on performance of food-acquiring conditioned reflexes have studied. Most neurons showed decreased firing rate responses increased latency and increase of number short interspike intervals accompanied by changes in parameters of the food-acquiring responses: increase latent periods and long persistence of electromyogram. The above-noted facts have shown that the most obvious excitatory influences to the midbrain tegmentum from orbital cortex in the period of initiation condition motor response.