the block of regulation of the level of brain activation (according to A. R. Luria), which includes the reticular formation of the brainstem, the structure of the midbrain, the diencephalic parts of the limbic system, the mediobasal regions of the cortex of the frontal and temporal lobes of the brain. This block provides optimal levels of general and selective activation necessary for the implementation of mental functions and contributing to the high efficiency of the performance of behavioral acts.