[Convergent properties and chemical sensitivity of neurons of the reticular formation of the midbrain of unanesthetized rabbits].

Neuronal responses of the midbrain reticular formation to light and sound stimuli as well as stimuli of negative biological modality (electric skin stimulation, stimulation of the ventromedial hypothalamus), were compared to neuronal sensitivity to microionophoretic administration of acetylcholine, noradrenaline and serotonine. The reticular neurons were shown to possess obvious interrelated convergent and chemical properties which suggests the neurochemical maintenance of integrative activity of these neurons. However, no significant correlation was revealed among neuronal responses to separate types of stimulation and their sensitivity to a certain transmitter.