Primed to Sleep: The Dynamics of Synaptic Plasticity Across Brain States

Overview

Journal Front Syst Neurosci

Specialty Neurology

Date 2019 Feb 19

PMID 30774586

Citations 52

Authors

Julie Seibt

Marcos G Frank

Affiliations

Soon will be listed here.

Abstract

It is commonly accepted that brain plasticity occurs in wakefulness sleep. However, how these different brain states work in concert to create long-lasting changes in brain circuitry is unclear. Considering that wakefulness and sleep are profoundly different brain states on multiple levels (e.g., cellular, molecular and network activation), it is unlikely that they operate exactly the same way. Rather it is probable that they engage different, but coordinated, mechanisms. In this article we discuss how plasticity may be divided across the sleep-wake cycle, and how synaptic changes in each brain state are linked. Our working model proposes that waking experience triggers short-lived synaptic events that are necessary for transient plastic changes and mark (i.e., 'prime') circuits and synapses for further processing in sleep. During sleep, synaptic protein synthesis at primed synapses leads to structural changes necessary for long-term information storage.

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