Forgetting unwanted memories in sleep

Trends Cogn Sci. 2024 Oct;28(10):881-883. doi: 10.1016/j.tics.2024.07.011. Epub 2024 Aug 20.

Abstract

Memories are sometimes best forgotten, but how do our brains weaken unwanted details of the past? We propose a theoretical framework in which memory reactivation during sleep supports adaptive forgetting. This mnemonic rebalancing underpins the affective benefits of sleep by ensuring that our memories remain aligned with our emotional goals.

Keywords: emotion regulation; forgetting; memory reactivation; sleep; spindles.

Publication types

  • Review

MeSH terms

  • Brain / physiology
  • Emotions / physiology
  • Humans
  • Memory / physiology
  • Mental Recall / physiology
  • Sleep* / physiology