[Psychophysiological signs of aging in mice F1 (C57BL/6×DBA/2).].

The psychophysiological effects of aging in mice of the line F1 (C57BL/6×DBA/2) at the age of 3, 7, and 14 months were investigated. It was found that the cognitive abilities, memory and spatial orientation in all animals did not depend on age, they were able to form a 4-link food-getting habit. The instability of behavior found in all mice at the stereotyped stage of in the form of periodic reproduction of false and irrational realizations was determined by the peculiarities of the basic nervous processes - increased excitability and weakness of inhibition. It was possible to establish that the consistent reduction of the excitation phase during the aging process caused the instability of the dominant state and motivational activity, negatively affecting the attention stable and, consequently, the ability to consistently reproduce the optimal variant of habit.