Evidence map›Paper›PMID 32712452›Full record

ArticleNeuroImage. Clinical2020

Modulation of frontal gamma oscillations improves working memory in schizophrenia.

Fiza Singh, I-Wei Shu, Sheng-Hsiou Hsu, Peter Link, Jaime A Pineda, Eric Granholm

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 19% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
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  13. Editorial: Clinical Neurofeedback.NeuroImage. Clinical · 2022
    Article
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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 1 country.

Fiza SinghDepartment of Psychiatry, School of Medicine, University of California at San Diego, United States. Electronic address: fsingh@health.ucsd.edu.
I-Wei ShuDepartment of Psychiatry, School of Medicine, University of California at San Diego, United States.
Sheng-Hsiou HsuSwartz Center for Computational Neuroscience, University of California at San Diego, United States.
Peter LinkDepartment of Psychiatry, School of Medicine, University of California at San Diego, United States.
Jaime A PinedaDepartment of Cognitive Science, Division of Cognitive Neuroscience, University of California at San Diego, United States.
Eric GranholmDepartment of Psychiatry, School of Medicine, University of California at San Diego, United States.
University of California San Diego · USUC San Diego Health System · US

Funding

Enhancing Gamma Band Response in Schizophrenia to Improve Working MemoryR61MH112793 · NIMH · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SINGH, FIZA · 2017 to 2019
$1.0M
NIMH NIH HHS R61 MH112793
6 · The paper itself

Abstract

Schizophrenia is a debilitating mental disorder that is associated with cognitive deficits. Impairments in cognition occur early in the course of illness and are associated with poor functional outcome, but have been difficult to treat with conventional treatments. Recent studies have implicated abnormal neural network dynamics and impaired connectivity in frontal brain regions as possible causes of cognitive deficits. For example, high-frequency, dorsal-lateral prefrontal oscillatory activity in the gamma range (30-50 Hz) is associated with impaired working memory in individuals with schizophrenia.In light of these findings, it may be possible to use EEG neurofeedback (EEG-NFB) to train individuals with schizophrenia to enhance frontal gamma activity to improve working memory and cognition. In a single-group, proof-of-concept study, 31 individuals with schizophrenia received 12 weeks of twice weekly EEG-NFB to enhance frontal gamma band response. EEG-NFB was well-tolerated, associated with increased gamma training threshold, and significant increases in frontal gamma power during an n-back working memory task. Additionally, EEG-NFB was associated with significant improvements in n-back performance and working memory, speed of processing, and reasoning and problem solving on neuropsychological tests. Change in gamma power was associated with change in cognition. Significant improvements in psychiatric symptoms were also found. These encouraging findings suggest EEG-NFB targeting frontal gamma activity may provide a novel effective approach to cognitive remediation in schizophrenia, although placebo-controlled trials are needed to assess the effects of non-treatment related factors.

Indexed as

Cognition DisordersSchizophreniaFrontal LobeHumansMemory, Short-TermNeuropsychological TestsCognitive remediationGammaN-backNeurofeedbackSchizophreniaWorking memory

Identifiers

PMID32712452
PMCPMC7390812
OpenAlexW3042135124

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.