Evidence map›Paper›PMID 23483920›Full record

Trial reportPloS one2013

Enhanced stimulus-induced gamma activity in humans during propofol-induced sedation.

Neeraj Saxena, Suresh D Muthukumaraswamy, Ana Diukova, Krish Singh, Judith Hall, Richard Wise

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

31 citing papers in PubMed, 55 citations in OpenAlex.

  1. Trial
  2. Resting GABA and glutamate concentrations do not predict visual gamma frequency or amplitude.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Trial
  3. Article
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  7. Review
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  11. Tiagabine induced modulation of oscillatory connectivity and activity match PET-derived, canonical GABA-A receptor distributions.European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology · 2021
    Article
  12. Article
  13. Article
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  15. Anesthesia-induced loss of consciousness disrupts auditory responses beyond primary cortex.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  16. Article
  17. Article
  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

6 authors at 2 institutions in 1 country.

Neeraj SaxenaDepartment of Anaesthetics, Intensive Care and Pain Medicine, School of Medicine, Cardiff University, Cardiff, United Kingdom.
Suresh D Muthukumaraswamy
Ana Diukova
Krish Singh
Judith Hall
Richard Wise
Cardiff University · GBRoyal Glamorgan Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stimulus-induced gamma oscillations in the 30-80 Hz range have been implicated in a wide number of functions including visual processing, memory and attention. While occipital gamma-band oscillations can be pharmacologically modified in animal preparations, pharmacological modulation of stimulus-induced visual gamma oscillations has yet to be demonstrated in non-invasive human recordings. Here, in fifteen healthy humans volunteers, we probed the effects of the GABAA agonist and sedative propofol on stimulus-related gamma activity recorded with magnetoencephalography, using a simple visual grating stimulus designed to elicit gamma oscillations in the primary visual cortex. During propofol sedation as compared to the normal awake state, a significant 60% increase in stimulus-induced gamma amplitude was seen together with a 94% enhancement of stimulus-induced alpha suppression and a simultaneous reduction in the amplitude of the pattern-onset evoked response. These data demonstrate, that propofol-induced sedation is accompanied by increased stimulus-induced gamma activity providing a potential window into mechanisms of gamma-oscillation generation in humans.

Indexed as

AnesthesiaBrain MappingPhotic StimulationAdultAnesthetics, IntravenousEvoked Potentials, VisualHumansMalePropofolYoung AdultAnesthetics, IntravenousPropofol

Identifiers

PMID23483920
PMCPMC3590225
OpenAlexW2005612592

What OpenQuestion holds

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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.