Evidence map›Paper›PMID 37264156›Full record

ArticleNature neuroscience2023

Augmenting hippocampal-prefrontal neuronal synchrony during sleep enhances memory consolidation in humans.

Maya Geva-Sagiv, Emily A Mankin, Dawn Eliashiv, Shdema Epstein, Natalie Cherry, Guldamla Kalender, Natalia Tchemodanov, Yuval Nir, Itzhak Fried

Open access · hybridAbstract read
In one paragraph

Article in Nature neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
22.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 127 citations in OpenAlex.

  1. Efficacy and safety of tACS in older adults with cognitive impairment: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Auditory-evoked changes in slow oscillations and spindles correlate with memory consolidation in children with epilepsy and controls.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026
    Article
  10. Article
  11. Article
  12. Sleep regulation inFrontiers in neuroscience · 2026
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

8 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Maya Geva-SagivDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0001-9353-5132
Emily A MankinDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0003-2163-913X
Dawn EliashivDepartment of Neurology, University of California, Los Angeles, Los Angeles, CA, USA.
Shdema EpsteinDepartment of Physiology and Pharmacology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
Natalie CherryDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA.
Guldamla KalenderDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA.
Natalia TchemodanovDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA.
Yuval NirSagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel. ynir@tauex.tau.ac.il.ORCID http://orcid.org/0000-0002-5433-6349
Itzhak FriedDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, USA. ifried@mednet.ucla.edu.ORCID http://orcid.org/0000-0002-5962-2678
University of California, Los Angeles · USTel Aviv University · IL

Funding

Decoding and Selective Modulation of Human Memory During Awake/Sleep CyclesU01NS123128 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 2021 to 2025
$7.1M
Mechanisms of Memory Enhancement by Deep Brain Stimulation in HumansR01NS084017 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 2013 to 2022
$4.7M
Training Program in Neural MicrocircuitsT32NS058280 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FELDMAN, JACK L · 2007 to 2017
$2.4M
Memory consolidation during sleep studied by direct neuronal recording and stimulation inside human brainU01NS108930 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FRIED, ITZHAK · 2018 to 2019
$1.9M
NINDS NIH HHS R01 NS084017NINDS NIH HHS T32 NS058280NINDS NIH HHS U01 NS108930NINDS NIH HHS U01 NS123128
6 · The paper itself

Abstract

Memory consolidation during sleep is thought to depend on the coordinated interplay between cortical slow waves, thalamocortical sleep spindles and hippocampal ripples, but direct evidence is lacking. Here, we implemented real-time closed-loop deep brain stimulation in human prefrontal cortex during sleep and tested its effects on sleep electrophysiology and on overnight consolidation of declarative memory. Synchronizing the stimulation to the active phases of endogenous slow waves in the medial temporal lobe (MTL) enhanced sleep spindles, boosted locking of brain-wide neural spiking activity to MTL slow waves, and improved coupling between MTL ripples and thalamocortical oscillations. Furthermore, synchronized stimulation enhanced the accuracy of recognition memory. By contrast, identical stimulation without this precise time-locking was not associated with, and sometimes even degraded, these electrophysiological and behavioral effects. Notably, individual changes in memory accuracy were highly correlated with electrophysiological effects. Our results indicate that hippocampo-thalamocortical synchronization during sleep causally supports human memory consolidation.

Indexed as

Memory ConsolidationElectroencephalographyHippocampusHumansPrefrontal CortexSleepTemporal Lobe

Identifiers

PMID37264156
PMCPMC10244181
OpenAlexW4378980559

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.