Evidence map›Paper›PMID 31852140›Full record

Trial reportMedicine2019

Beta wave enhancement neurofeedback improves cognitive functions in patients with mild cognitive impairment: A preliminary pilot study.

Jung-Hee Jang, Jieun Kim, Gunhyuk Park, Haesook Kim, Eun-Sun Jung, Ji-Yun Cha, Chan-Young Kim, Siyeon Kim, Jun-Hwan Lee, Horyong Yoo

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Medicine, 2019. 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
2.0field-weighted citation impact, top 14% 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, 36 citations in OpenAlex.

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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

10 authors at 3 institutions in 1 country.

Jung-Hee JangDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Jieun KimClinical Medicine Division, Korea Institute of Oriental Medicine.
Gunhyuk ParkHerbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju-si, Jeollanam-do, Republic of Korea.
Haesook KimDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Eun-Sun JungDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Ji-Yun ChaDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Chan-Young KimDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Siyeon KimDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Jun-Hwan LeeClinical Medicine Division, Korea Institute of Oriental Medicine.
Horyong YooDepartment of Neurologic Disorders & Aging Brain Constitution, Dunsan Korean Medicine Hospital, Daejeon University.
Dunsan Korean Medicine Hospital · KRDaejeon University · KRKorea Institute of Oriental Medicine · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMild cognitive impairment (MCI) is a symptom characterizing cognitive decline and a transitional state between normal aging and dementia; however, there is no definitive diagnosis and treatment for MCI. Neurofeedback (NF), which is a training mechanism that employs operant conditioning to regulate brain activity, has been increasingly investigated concerning its beneficial effects for dementia and MCI.

methodsThis study investigated cognitive improvement and hemodynamic changes in the prefrontal cortex (PFC) following NF training in patients with MCI. Five patients with MCI received NF training for enhanced beta band activity in the dorsolateral PFC-16 sessions for 8 weeks-with each session divided into 9 5-minute trials. The primary outcome measure was a cognitive assessment tool: the Korean version of the Montreal Cognitive Assessment. The secondary outcome measures were the Central Nervous System Vital Signs for neurocognitive testing, hemodynamic changes using functional near-infrared spectroscopy in the PFC during a working-memory task, and Beck Depression Inventory scores.

resultsAfter completing the training, patients' cognitive function significantly improved in domains such as composite memory, cognitive flexibility, complex attention, reaction time, and executive function. Increased electroencephalogram beta power was observed over NF training sessions (Spearman rank correlation test: r = 0.746, P = .001). The threshold value for gaining positive feedback from pre-NF baseline on beta power significantly increased (Spearman rank correlation test: r = 0.805, P = .001). Hemodynamic response in PFC changed after NF training, and individual differences were identified. Specifically, hypoactivation of the hemodynamic response by emotional distraction recovered following NF training.

conclusionWe suggest that patients' cognitive processing efficiency was improved by the NF training. These beneficial results suggest that NF training may have potential therapeutic applications to prevent the progression from MCI to dementia. TRIAL REGISTRATION NUMBER: Clinical Research Information Service (KCT0003433).

Indexed as

AgedBeta RhythmCognitionCognitive DysfunctionFemaleHumansMaleMiddle AgedNeurofeedbackPilot ProjectsPrefrontal CortexTreatment Outcome

Identifiers

PMID31852140
PMCPMC6922450
OpenAlexW2995365728

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.