[The thermal activity of the rabbit brain in motivational states of hunger or thirst].

Motivational states of hunger or thirst in rabbits were produced by the relevant deprivation of different duration (24 and 48 h). The distribution of brain thermal fields was studied by the method of thermoencephaloscopy. The thermal asymmetry was observed in the states of thirst and hunger the temperature of the left hemisphere being higher. Generalization of the brain temperature reaction depended on the level of motivational excitation. The interhemispheric brain asymmetry with higher temperature in the left hemisphere in the states of food and drinking deprivation had a pronounced trace effect, i.e., persisted for some time after satisfaction of the corresponding need. Evidently, the interhemispheric asymmetry with higher temperature of the left hemisphere reflects its predominant activation in the studied states.