CMCB Life Sciences Seminar: Jan Born, University of Tübingen
- Datum
- 26.01.2023
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- 13:00 - 14:00
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- CMCB Life Sciences Seminar
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- en
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- Beschreibung
Host: Henrik Bringmann (BIOTEC)
Title: “Sleep – a brain state serving memory”
Abstract:
Whereas memories are optimally encoded and retrieved when the brain is awake, the consolidation and formation of long-term memory requires an offline mode of processing as optimally established only during sleep. Based on evidence from behavioral and neurobiological studies in humans and rodents, I will consider the formation of long-term memory during sleep as an “active systems consolidation” process in which the repeated neuronal replay of memory representations originating from the hippocampus during slow-wave sleep (SWS) leads to a gradual transformation and integration of representations into extrahippocampal, mainly neocortical networks. I will highlight three features of this process: (i) Hippocampal replay that, by capturing episodic memory aspects, drives consolidation of representations residing inside and outside the hippocampus; (ii) brain oscillations hallmarking SWS and rapid-eye movement (REM) sleep, respectively, which provide mechanisms to regulate both information flow across distant brain networks and local synaptic plasticity; and (iii) qualitative transformations of memories during sleep-dependent systems consolidation resulting in abstract schema-like representations.- Links
Letztmalig verändert: 26.01.2023, 07:38:52
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