Replay articles within Nature Communications

Featured

• Article
  15 December 2022 | Open Access

  Sleep-like unsupervised replay reduces catastrophic forgetting in artificial neural networks

  Artificial neural networks are known to perform well on recently learned tasks, at the same time forgetting previously learned ones. The authors propose an unsupervised sleep replay algorithm to recover old tasks synaptic connectivity that may have been damaged after new task training.

  • Timothy Tadros
  • , Giri P. Krishnan
  •  & Maxim Bazhenov

• Article
  06 July 2021 | Open Access

  Reward biases spontaneous neural reactivation during sleep

  Sleep is known to promote memory consolidation, but the extent to which this is dependent on the memory’s relevance remains unclear. Here, the authors use a brain decoding approach to show that neural representations of rewarded experiences undergo a privileged reactivation during sleep, favouring their consolidation.

  • Virginie Sterpenich
  • , Mojca K. M. van Schie
  •  & Sophie Schwartz

• Article
  25 May 2021 | Open Access

  Endogenous memory reactivation during sleep in humans is clocked by slow oscillation-spindle complexes

  Sleep after learning helps to strengthen new memories. Here, the authors link this memory benefit to the reactivation of learning experiences when two endogenous sleep rhythms—slow oscillations and sleep spindles—coincide.

  • Thomas Schreiner
  • , Marit Petzka
  •  & Bernhard P. Staresina

• Article
  22 February 2021 | Open Access

  Causal role for sleep-dependent reactivation of learning-activated sensory ensembles for fear memory consolidation

  Learning-activated engram neurons play a critical role in memory recall but the role of these neurons in offline memory consolidation is unclear. The authors show that sleep-associated reactivation of learning-activated sensory neurons is necessary for memory consolidation.

  • Brittany C. Clawson
  • , Emily J. Pickup
  •  & Sara J. Aton

• Article
  20 May 2020 | Open Access

  Precise coupling of the thalamic head-direction system to hippocampal ripples

  Thalamic head direction (HD) cells are necessary to establish spatial maps in the hippocampus. Here, the authors show that HD cells tuned to a particular direction are coupled to individual hippocampal ripple events during sleep, suggesting an influence of the replay of specific trajectories during sleep memory consolidation.

  • Guillaume Viejo
  •  & Adrien Peyrache

• Article
  25 September 2018 | Open Access

  Human hippocampal replay during rest prioritizes weakly learned information and predicts memory performance

  The hippocampus is known to 'replay' experiences and memories during rest periods, but it is unclear how particular memories are prioritized for replay. Here, the authors show that information that is remembered less well is replayed more often, suggesting that weaker memories are selected for replay.

  • Anna C. Schapiro
  • , Elizabeth A. McDevitt
  •  & Kenneth A. Norman

• Article
  25 May 2017 | Open Access

  Coordination of cortical and thalamic activity during non-REM sleep in humans

  During non-REM sleep, the thalamus produces spindles and the cortex produces downstates, but the interaction between these two areas in these sleep phenomena is not understood. Here, authors describe the dynamic loop between the thalamus and cortex that organizes the production of spindles and downstates in the human brain.

  • Rachel A. Mak-McCully
  • , Matthieu Rolland
  •  & Eric Halgren

• Article
  06 April 2017 | Open Access

  Parvalbumin-expressing interneurons coordinate hippocampal network dynamics required for memory consolidation

  Episodic memory consolidation requires activity in hippocampal area CA1. Here the authors report that pharmacogenetic inhibition of CA1 PV+ interneuron firing after fear learning blocks memory consolidation and disrupts associated enhancement in network oscillations and stabilization of functional connectivity patterns.

  • Nicolette Ognjanovski
  • , Samantha Schaeffer
  •  & Sara J. Aton