Evidence map›Paper›PMID 40603846›Full record

ArticleNature communications2025

Hippocampal ripples predict motor learning during brief rest breaks in humans.

Martin Sjøgård, Bryan Baxter, Dimitrios Mylonas, Megan Thompson, Kristi Kwok, Bailey Driscoll, Anabella Tolosa, Wen Shi, Robert Stickgold, Mark Vangel and 2 more

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Skill Memory Expansion Shapes Micro-Scale Dynamics of Skill Learning.bioRxiv : the preprint server for biology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Micro-offline gains do not reflect offline learning during early motor skill acquisition in humans.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Article
  12. Impaired Online and Enhanced Offline Motor Sequence Learning in Individuals with Parkinson's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
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

12 authors.

Martin Sjøgård *Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Bryan Baxter *Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0003-3056-0204
Dimitrios MylonasDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Megan ThompsonDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Kristi KwokDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Bailey DriscollDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Anabella TolosaDepartment of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Wen ShiDepartment of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0003-1022-6639
Robert StickgoldDepartment of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Mark VangelAthinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
Catherine J Chu *Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0001-7670-9313
Dara S Manoach *Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. dara.manoach@mgh.harvard.edu.ORCID http://orcid.org/0000-0001-9208-1167

Funding

Sleep-dependent Memory Processing in SchizophreniaR01MH092638 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI DARA S MANOACH · 2012 to 2026
$7.4M
Focal Thalamocortical Circuit Dysfunction Mediates Motor and Cognitive Deficits in Developmental EpilepsyR01NS115868 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI CHU, CATHERINE J · 2020 to 2024
$3.4M
Targeting Pathologic Spike-Ripples to Isolate and Disrupt Epileptic DynamicsR01NS119483 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI CHU, CATHERINE J, EDEN, URI TZVI · 2021 to 2025
$3.4M
Optimizing sleep spindle measurements as translational assays of memory consolidationUG3MH125273 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI MANOACH, DARA S, VARELA, CARMEN · 2021 to 2022
$1.4M
Optimizing sleep spindle measurements as translational assays of memory consolidationUH3MH125273 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI MANOACH, DARA S, VARELA, CARMEN · 2023 to 2024
$1.4M
NIMH NIH HHS R01 MH092638NIMH NIH HHS UG3 MH125273NIMH NIH HHS UH3 MH125273NINDS NIH HHS R01 NS115868NINDS NIH HHS R01 NS119483U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) MH092638U.S. Department of Health & Human Services | NIH | National Institute of Mental Health (NIMH) MH125273U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS) R01NS115868U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS) R01NS119483
6 · The paper itself

Abstract

Critical aspects of motor learning and memory happen offline, during both wake and sleep. When healthy young people learn a motor sequence task, most of their performance improvement happens not while typing, but offline, during interleaved rest breaks. In contrast, the performance of patients with dense amnesia due to hippocampal damage actually gets worse over the rest breaks and improves while typing. These findings indicate that an intact hippocampus is necessary for offline motor learning during wake, but do not specify its mechanism. Here, we studied epilepsy patients (n = 17) undergoing direct intracranial electroencephalographic monitoring of the hippocampus as they learned the same motor sequence task. Like healthy young people, they show greater speed gains across rest breaks than while typing. They also show higher hippocampal ripple rates during these rest breaks that predict offline gains in speed. This suggests that motor learning during brief rest breaks during wake is mediated by hippocampal ripples. These results expand our understanding of the role of hippocampal ripples beyond declarative memory to include enhancing motor procedural memory.

Indexed as

HippocampusLearningRestAdolescentAdultElectrocorticographyElectroencephalographyEpilepsyFemaleHumansMaleMemorySleepYoung Adult

Identifiers

PMID40603846
PMCPMC12222441

What OpenQuestion holds

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Registered trials

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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.