Memory reactivations during sleep

Khaled Ghandour, Kaoru Inokuchi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Neuronal activities that occur during awake periods are often reactivated again during sleep, to consolidate recently encoded memories, a process known as consolidation. In recent years, advanced tools, specially optical techniques and in-vivo live Ca2+ imaging, have revealed a deeper understanding to the offline periods’ neuronal activities and their correspondence to later awake behavioral outputs. Recently, there is a growing consensus that sleep is more of an active process. Sleep has been associated with various functions, memory updating, future imaginations of possible familiar scenarios, decision making and planning by replaying past memories. Also, boosting insightful thoughts, creative thinking and problem solving by forming new associations and connections that were not present in awake states. Sleep activities have been directly associated with many “EUREKA” or “AHA” moments. Here, we describe recent views on memory reactivations during sleep and their implications on learning and memory.

Original languageEnglish
Pages (from-to)60-65
Number of pages6
JournalNeuroscience Research
Volume189
DOIs
StatePublished - 2023/04

Keywords

  • Creative thinking
  • Engram
  • Idling brain
  • Memory
  • Replay
  • Sleep

ASJC Scopus subject areas

  • General Neuroscience

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