Evidence map›Paper›PMID 24348349›Full record

ArticleFrontiers in systems neuroscience2013

Valproate reopens critical-period learning of absolute pitch.

Judit Gervain, Bradley W Vines, Lawrence M Chen, Rubo J Seo, Takao K Hensch, Janet F Werker, Allan H Young

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Frontiers in systems neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07226141 (Valproate for the Treatment of Residual Amblyopia), which is not on this map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
6.0field-weighted citation impact, top 3% 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.

NCT07226141 phase1 / phase2recruitingnot on this mapstarted 2026, after this paper: background citation

Valproate for the Treatment of Residual Amblyopia

TypeinterventionalSponsorBoston Children's HospitalRan2026 to 2027Enrolled28ConditionsAmblyopia, Amblyopia Unilateral, Amblyopia, Anisometropic, Amblyopia StrabismicArmsValproate, Placebo, Patch
3 · Its place in the literature

Who cites it

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 157 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Learning as the unifying mechanism of psychedelic action.Journal of psychopharmacology (Oxford, England) · 2026
    Review
  5. Investigating hierarchical critical periods in human neurodevelopment.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  6. Epigenetic regulation of brain development, plasticity, and response to early-life stress.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Hippocampal circuit dysfunction in psychosis.Translational psychiatry · 2022
    Review
  16. Article
  17. Critical periods inFrontiers in physiology · 2022
    Review
  18. Review
  19. Article
  20. 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

7 authors at 7 institutions in 5 countries.

Judit GervainLaboratoire Psychologie de la Perception, CNRS Paris, France ; Laboratoire Psychologie de la Perception, Université Paris Descartes, Sorbonne Paris Cité Paris, France.
Bradley W VinesDepartment of Psychiatry, Institute of Mental Health, University of British Columbia Vancouver, BC, Canada.
Lawrence M ChenDepartment of Linguistics, University of Maryland College Park, MD, USA.
Rubo J SeoSchool of Medicine, University of Queensland Brisbane, QLD, Australia.
Takao K HenschDepartment of Molecular Cellular Biology, Center for Brain Science, Harvard University Cambridge, MA, USA.
Janet F WerkerDepartment of Psychology, University of British Columbia Vancouver, BC, Canada.
Allan H YoungCentre for Affective Disorders, Institute of Psychiatry King's College London, UK.
Harvard University Press · USImperial College London · GBThe University of Queensland · AUUniversité Paris Cité · FRUniversity of British Columbia · CAUniversity of Maryland, College Park · USUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Absolute pitch, the ability to identify or produce the pitch of a sound without a reference point, has a critical period, i.e., it can only be acquired early in life. However, research has shown that histone-deacetylase inhibitors (HDAC inhibitors) enable adult mice to establish perceptual preferences that are otherwise impossible to acquire after youth. In humans, we found that adult men who took valproate (VPA) (a HDAC inhibitor) learned to identify pitch significantly better than those taking placebo-evidence that VPA facilitated critical-period learning in the adult human brain. Importantly, this result was not due to a general change in cognitive function, but rather a specific effect on a sensory task associated with a critical-period.

Indexed as

absolute pitchcritical period reopeninghistone-deacetylase inhibitorshuman adultslearningvalproate

Identifiers

PMID24348349
PMCPMC3848041
OpenAlexW2162882125

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.