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Neuronal mechanisms of consolidation of memories for behavioral episodes in sleep
Petránová, Erika ; Kelemen, Eduard (advisor) ; Telenský, Petr (referee)
Memory is an important ability of an individual allowing efficient operations with information acquired during lifetime. Memory is a dynamic process consisting of different phases such as encoding, consolidation and repeated retrieval of the memory. Received information from surrounding environment travels to the short-term storage, from which, in certain amount of time after re-evaluation of its relevance, it is decided about its transport to structures designated for long-term storing. The mechanism used for this transformation is referred to as consolidation. Consolidation occurs on systematic and synaptic level. Positive strengthening effect on memories coded right before sleep has been observed many years ago. The role of sleep in the consolidation of memory representation is still unknown, though there are multiple hypotheses that stress different points of view on the consolidation process. In the last few decades sleep has been given an active role in this process. An interesting problem regarding sleep consolidation is not only the mechanism, but also the preference of a specific type of memory that is being consolidated during sleep. During examination of consolidation of declarative memory, we can observe, in case of episodic memory, an improvement of mainly space-time association...
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