Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Sleep enforces the temporal order in memory.

Spyridon Drosopoulos1, Eike Windau, Ullrich Wagner

  • 1Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany.

Plos One
|April 19, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Aperiodic and periodic neural activity during sleep in autism spectrum disorders.

BMC medicine·2026
Same author

Neuronal correlates of spatial memory updating: c-Fos and GAD67 expression in the object-place recognition task.

Scientific reports·2026
Same author

Sleep spindles promote hippocampal network downregulation during sleep.

Current biology : CB·2026
Same author

The Emergence of New Schema Memory Requires Sleep.

The Journal of neuroscience : the official journal of the Society for Neuroscience·2026
Same author

Electrical Synapses Contribute to Sleep-Dependent Declarative Memory Retention.

The European journal of neuroscience·2026
Same author

The effects of sleep and targeted memory reactivation on the consolidation of relevant and irrelevant information.

Frontiers in sleep·2025
Same journal

Analysis of strength degradation of coal and rock masses and stability of mined areas under long term immersion environment.

PloS one·2026
Same journal

Biogenic Silver-Selenium nanocomposite with anticancer activity and potent efficacy against vancomycin-resistant Staphylococcus aureus.

PloS one·2026
Same journal

Preparation and physicochemical characterization of a biodegradable chitosan/carboxymethyl cellulose hydrogel synthesized in NaOH/urea medium.

PloS one·2026
Same journal

Action-guilt, survivor-guilt, and depression in combat-related PTSD.

PloS one·2026
Same journal

Explainable machine learning for predicting activities of daily living at discharge in stroke patients: A retrospective study using SHAP interpretability.

PloS one·2026
Same journal

Deep learning based two-way feature depiction model for brain tumor detection.

PloS one·2026
See all related articles

Sleep strengthens episodic memory by enhancing the temporal sequence structure of learned information. This process appears to involve a forward replay of memory traces during sleep, improving recall of the original order.

Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Episodic memory relies on temporal sequence, often involving hippocampus-dependent systems.
  • Sleep is known to consolidate declarative memories, but its effect on temporal structure is unclear.

Purpose of the Study:

  • To investigate whether sleep enhances the temporal sequence structure of memory representations.
  • To determine if sleep strengthens forward or backward associations in word triplets.

Main Methods:

  • Participants learned word triplets (A-B-C) and then either slept or stayed awake.
  • Memory retrieval was tested for forward (A-B-C) and backward (C-B-A) associations after two days.

Main Results:

  • Memory was significantly better for forward than backward associations.

Related Experiment Videos

  • Sleep enhanced forward associations, particularly the initial A-B transitions.
  • Sleep did not impact backward associations.

    • Conclusions:

    • Sleep consolidation strengthens the original temporal sequence of episodic memory.
    • Temporally directed replay of memory representations during sleep may be key to maintaining temporal order.