Evidence map›Paper›PMID 29865867›Full record

ArticleJournal of behavioral addictions2018

EEG correlates associated with the severity of gambling disorder and serum BDNF levels in patients with gambling disorder.

Kyoung Min Kim, Sam-Wook Choi, Jaewon Lee, Jun Won Kim

Open access · goldAbstract read
In one paragraph

Article in Journal of behavioral addictions, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.8field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 16 citations in OpenAlex.

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  10. A case of pathological gambling.Indian journal of psychiatry
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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

4 authors at 2 institutions in 1 country.

Kyoung Min Kim1 Department of Psychiatry, Dankook University Hospital , Cheonan, Republic of Korea.
Sam-Wook Choi2 Department of Psychiatry, Korea Institute on Behavioral Addictions, True Mind Mental Health Clinic , Seoul, Republic of Korea.
Jaewon Lee3 Department of Psychiatry, Korea Institute on Neuromodulation, Easybrain Center , Seoul, Republic of Korea.
Jun Won Kim4 Department of Psychiatry, Catholic University of Daegu School of Medicine , Daegu, Republic of Korea.
Daegu Catholic University · KRDankook University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and aims This study aimed to evaluate the association between the severity of pathological gambling, serum brain-derived neurotrophic factor (BDNF) level, and the characteristics of quantitative electroencephalography (EEG) in patients with gambling disorder. Methods A total of 55 male patients aged 18-65 with gambling disorder participated. The severity of pathological gambling was assessed with the nine-item Problem Gambling Severity Index from the Canadian Problem Gambling Index (CPGI-PGSI). The Beck Depression Inventory and Lubben Social Network Scale were also assessed. Serum BDNF levels were assessed from blood samples. The resting-state EEG was recorded while the eyes were closed, and the absolute power of five frequency bands was analyzed: delta (1-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), beta (12-30 Hz), and gamma (30-50 Hz). Results Serum BDNF level was positively correlated with theta power in the right parietal region (P4, r = .403, p = .011), beta power in the right parietal region (P4, r = .456, p = .010), and beta power in the right temporal region (T8, r = .421, p = .008). Gambling severity (CPGI-PGSI) was positively correlated with absolute beta power in the left frontal region (F7, r = .284, p = .043) and central region [(C3, r = .292, p = .038), (C4, r = .304, p = .030)]. Conclusions These findings support the hypothesis that right-dominant lateralized correlations between BDNF and beta and theta power reflect right-dominant brain activation in addiction. The positive correlations between beta power and the severity of gambling disorder may be associated with hyperexcitability and increased cravings. These findings contribute to a better understanding of brain-based electrophysiological changes and BDNF levels in patients with pathological gambling.

Indexed as

ElectroencephalographyAdolescentAdultBiomarkersBrainBrain-Derived Neurotrophic FactorGamblingHumansMaleMiddle AgedPsychiatric Status Rating ScalesRestSeverity of Illness IndexYoung AdultBDNF protein, humanBiomarkersBrain-Derived Neurotrophic FactorBDNFgambling disorderquantitative electroencephalographyresting state

Identifiers

PMID29865867
PMCPMC6174577
OpenAlexW2805893539

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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.