The dynamics of amnesia development under conditions of memory reconsolidation disruption by serotonin receptor antagonist methiothepin or NMDA glutamate receptor antagonist MK-801 was studied in snails trained in conventional food aversion. In 2 days after training, injection of methiothepin or MK-801 before reminder induced amnesia development. During repeated training in 3 days after amnesia induction, the skill was formed more rapidly than during the initial training. During repeated training in 10 days after administration of methiothepin and reminder, the dynamics of habit formation was similar to that during initial learning. At the same time, repeated training in 10 days after MK-801 administration and reminder did not result in long-term memory formation. Disruption of reconsolidation of conditioned food aversion memory by antagonists of serotonin or NMDA glutamate receptors led to the development of different types of amnesia that had similar strengthening gradient at the early stages, but differed by the possibility of memory formation during re-training at the late stage.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 160, No. 11, pp. 536-541, November, 2015
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Nikitin, V.P., Solntseva, S.V. & Kozyrev, S.A. Dynamics of the Development of Amnesia Caused by Disruption of Memory Reconsolidation by Neurotransmitter Receptors Antagonists. Bull Exp Biol Med 160, 596–600 (2016). https://doi.org/10.1007/s10517-016-3226-4
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DOI: https://doi.org/10.1007/s10517-016-3226-4