[The neurochemical mechanisms of the participation of individual neurons in the processes of foresight and assessing the results of behavioral activity].

Chemical sensitivity of neurons of the cat's visual cortex was studied at successive stages of food-procuring behaviour, formed as an instrumental act with a reinforcement or under the conditions of unexpected appearance of milk. Biologically active substances were microionophoretically applied to single neurons of the visual cortex. During the period of anticipation and perception of milk under these two conditions neurons of the visual cortex had different chemical sensitivity to acetylcholine and noradrenaline. The dynamics of spike activity in these processes depended on protein synthesis reactions in neurons.