Evidence map›Paper›PMID 29569047›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2019

Alterations in resting-state gamma activity in patients with schizophrenia: a high-density EEG study.

Máté Baradits, Brigitta Kakuszi, Sára Bálint, Máté Fullajtár, László Mód, István Bitter, Pál Czobor

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In one paragraph

Article in European archives of psychiatry and clinical neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–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

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. KFrontiers in pharmacology · 2026
    Pooled it
  2. Article
  3. Review
  4. High-density EEG study in patients with schizophrenia treated with cariprazine.The international journal of neuropsychopharmacology · 2026
    Article
  5. Review
  6. Review
  7. Abnormal spontaneous activity and rest-task shift in schizophrenia.Psychiatry and clinical neurosciences · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Modulators of GABANeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  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

7 authors.

Máté BaraditsDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary. baradits.mate@med.semmelweis-univ.hu.
Brigitta KakusziDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary.
Sára BálintDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary.
Máté FullajtárDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary.
László MódDepartment of Psychiatry, Szent Borbála Hospital, Tatabánya, Hungary.
István BitterDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary.
Pál CzoborDepartment of Psychiatry and Psychotherapy, Semmelweis University, Balassa street 6, 1083, Budapest, Hungary.

Funding

Kutatási, Technológiai és Innovációs Alap KTIA_NAP_13-1-2013-0001
6 · The paper itself

Abstract

Alterations of EEG gamma activity in schizophrenia have been reported during sensory and cognitive tasks, but it remains unclear whether changes are present in resting state. Our aim was to examine whether changes occur in resting state, and to delineate those brain regions where gamma activity is altered. Furthermore, we wanted to identify the associations between changes in gamma activity and psychopathological characteristics. We studied gamma activity (30-48 Hz) in 60 patients with schizophrenia and 76 healthy controls. EEGs were acquired in resting state with closed eyes using a high-density, 256-channel EEG-system. The two groups were compared in absolute power measures in the gamma frequency range. Compared to controls, in patients with schizophrenia the absolute power was significantly elevated (false discovery rate corrected p < 0.05). The alterations clustered into fronto-central and posterior brain regions, and were positively associated with the severity of psychopathology, measured by the PANSS. Changes in gamma activity can lead to disturbed coordination of large-scale brain networks. Thus, the increased gamma activity in certain brain regions that we found may result in disturbances in temporal coordination of task-free/resting-state networks in schizophrenia. Positive association of increased gamma power with psychopathology suggests that altered gamma activity provides a contribution to symptom presentation.

Indexed as

AdultCerebral CortexFemaleGamma RhythmHumansMaleMiddle AgedNerve NetSchizophreniaSeverity of Illness IndexYoung AdultGamma activityResting stateSchizophrenia

Identifiers

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.