Evidence map›Paper›PMID 29665216›Full record

ArticleHuman brain mapping2018

Peak visual gamma frequency is modified across the healthy menstrual cycle.

Rachael L Sumner, Rebecca L McMillan, Alexander D Shaw, Krish D Singh, Fred Sundram, Suresh D Muthukumaraswamy

Open access · hybridAbstract read
In one paragraph

Article in Human brain mapping, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Endocrine modulation of cortical and retinal baseline perfusion across the menstrual cycle.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Article
  6. Article
  7. Article
  8. A therapeutic small molecule enhances γ-oscillations and improves cognition/memory in Alzheimer's disease model mice.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  9. GABA system as the cause and effect in early development.Neuroscience and biobehavioral reviews · 2024
    Review
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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

6 authors at 2 institutions in 2 countries.

Rachael L SumnerSchool of Psychology, The University of Auckland, Auckland, 1142, New Zealand.ORCID 0000-0002-2652-4617
Rebecca L McMillanSchool of Pharmacy, The University of Auckland, Auckland, 1142, New Zealand.
Alexander D ShawCUBRIC, School of Psychology, Cardiff University, Cardiff, CF24 4HQ, UK.
Krish D SinghCUBRIC, School of Psychology, Cardiff University, Cardiff, CF24 4HQ, UK.
Fred SundramDepartment of Psychological Medicine, The University of Auckland, Auckland, 1142, New Zealand.
Suresh D MuthukumaraswamySchool of Pharmacy, The University of Auckland, Auckland, 1142, New Zealand.
University of Auckland · NZCardiff University · GB

Funding

Medical Research Council MR/K005464/1Wellcome TrustWellcome Trust 104943/Z/14/Z
6 · The paper itself

Abstract

Fluctuations in gonadal hormones over the course of the menstrual cycle are known to cause functional brain changes and are thought to modulate changes in the balance of cortical excitation and inhibition. Animal research has shown this occurs primarily via the major metabolite of progesterone, allopregnanolone, and its action as a positive allosteric modulator of the GABA

Indexed as

Cross-Over StudiesEstradiolFemaleFollicular Phasegamma-Aminobutyric AcidGamma RhythmHumansLuteal PhaseModels, NeurologicalNeuronsProgesteroneVisual CortexVisual PerceptionYoung AdultEstradiolgamma-Aminobutyric AcidProgesteroneallopregnanoloneelectroencephalographyGABAmenstrual cyclevisual gamma oscillations

Identifiers

PMID29665216
PMCPMC6055613
OpenAlexW2799431740

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.