ИСТИНА

Nowadays the imprinting is considered as specific mechanism of fixation of information to the long-term memory in early ontogenesis. This process in adult state is possible only after the preliminary analysis and selection of information. How does it justified biologically to create two different memory mechanisms in the ontogeny? The aim was to obtain experimental evidence of possibility of imprintingtype fixation in adult state. This problem was investigated in the original multialternative maze having direct and bypass pathways between feeders. Initially mice were placed in a small maze, where the direct pathway was closed during one trial (3 min). Immediately after that the barriers was removed and the mice found themselves in a maze of full volume. Studies have shown that a short-time exposition of spatial information in maze of small volume was negatively affected on the cognitive process. Short-term exposure of spatial information not only was fixed but also included in behavioural structure. The imprinted-mice tried to combine an instinctive (direct pathway) and acquired spatial preferences (bypass pathway) within a single decision. Negative psycho-emotional reactions indicated that a cognitive dissonance appeared. The data obtained revealed the ability to imprint information not only in the early ontogeny, but also in adulthood. It is suggested that memory mechanism is universal on all stage of the ontogenetic development.