La hipótesis del etiquetado conductual en la formación de memorias de largo término.

VIOLA, H

Mar del Plata

Simposio; SAFIS; 2018

Memories are experience-dependent internal representations of the world that can last from short periods of time to a whole life. The formation of long-term memories relies on several biochemical changes, which inducing modifications in the synaptic efficiency change the way the neurons communicate each other. Interestingly, the formation of a lasting memory does not entirely depend on learning itself; different events occurring before or after a particular experience can affect its processing, impairing, improving, or even inducing lasting memories. The Behavioral Tagging hypothesis postulates that the formation of lasting memories rely on at least two parallel processes: the setting of a learning tag that determines which memory could be stored and were; and the synthesis of plasticity-related proteins, which once captured at tagged sites will allow the consolidation of a memory for long periods of time. Therefore a weak learning, only able to induce transient forms of memories but also capable of setting a learning tag, could be benefited from the proteins synthesized by a different strong event, processed in the same areas, by using them to consolidate its own lasting memory. Here, I describe the postulates of the Behavioral Tagging hypothesis, and revise several experiments that we performed from rodents to humans in order to discuss its implications on learning and memory processing.