Evidence map›Paper›PMID 23887151›Full record

Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2013

Sleep-dependent declarative memory consolidation--unaffected after blocking NMDA or AMPA receptors but enhanced by NMDA coagonist D-cycloserine.

Gordon B Feld, Tanja Lange, Steffen Gais, Jan Born

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

23 citing papers in PubMed, 56 citations in OpenAlex.

  1. Trial
  2. Cognitive and emotional empathy after stimulation of brain mineralocorticoid and NMDA receptors in patients with major depression and healthy controls.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Trial
  3. Trial
  4. The NMDA receptor partial agonist d-cycloserine does not enhance motor learning.Journal of psychopharmacology (Oxford, England) · 2016
    Trial
  5. Central Nervous Insulin Signaling in Sleep-Associated Memory Formation and Neuroendocrine Regulation.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2016
    Trial
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. From childhood adversity to latent stress vulnerability in adulthood: the mediating roles of sleep disturbances and HPA axis dysfunction.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Review
  13. Review
  14. Article
  15. Neurochemical mechanisms for memory processing during sleep: basic findings in humans and neuropsychiatric implications.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Review
  16. Article
  17. Review
  18. Overnight memory consolidation facilitates rather than interferes with new learning of similar materials-a study probing NMDA receptors.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  19. Review
  20. Review
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

4 authors at 3 institutions in 1 country.

Gordon B Feld1] Institute of Medical Psychology and Behavioral Neurobiology, University of Tuebingen, Tuebingen, Germany [2] Department of Neuroendocrinology, University of Luebeck, Luebeck, Germany.
Tanja Lange
Steffen Gais
Jan Born
University of Tübingen · DELudwig-Maximilians-Universität München · DEUniversity of Lübeck · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sleep has a pivotal role in the consolidation of declarative memory. The coordinated neuronal replay of information encoded before sleep has been identified as a key process. It is assumed that the repeated reactivation of firing patterns in glutamatergic neuron assemblies translates into plastic synaptic changes underlying the formation of longer-term neuronal representations. Here, we tested the effects of blocking and enhancing glutamatergic neurotransmission during sleep on declarative memory consolidation in humans. We conducted three placebo-controlled, crossover, double-blind studies in which participants learned a word-pair association task. Afterwards, they slept in a sleep laboratory and received glutamatergic modulators. Our first two studies aimed at impairing consolidation by administering the NMDA receptor blocker ketamine and the AMPA receptor blocker caroverine during retention sleep, which, paradoxically, remained unsuccessful, inasmuch as declarative memory performance was unaffected by the treatment. However, in the third study, administration of the NMDA receptor coagonist D-cycloserine (DCS) during retention sleep facilitated consolidation of declarative memory (word pairs) but not consolidation of a procedural control task (finger sequence tapping). Administration of DCS during a wake interval remained without effect on retention of word pairs but improved encoding of numbers. From the overall pattern, we conclude that the consolidation of hippocampus-dependent declarative memory during sleep relies on NMDA-related plastic processes that differ from those processes leading to wake encoding. We speculate that glutamatergic activation during sleep is not only involved in consolidation but also in forgetting of hippocampal memory with both processes being differentially sensitive to DCS and unselective blockade of NMDA and AMPA receptors.

Indexed as

AdolescentAdrenocorticotropic HormoneAdultAssociation LearningCycloserineDouble-Blind MethodExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsFemaleHumansHydrocortisoneMaleMemoryNeuropsychological TestsPsychiatric Status Rating ScalesSleepAdrenocorticotropic HormoneCycloserineExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsHydrocortisone

Identifiers

PMID23887151
PMCPMC3828540
OpenAlexW2012602951

What OpenQuestion holds

Textmetadata
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.