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The Effect of Neurofeedback-assisted Mindfulness Training in Employees With Emotional Labor

NCT03787407, Not applicable, Completed, Seoul National University Hospital

Trial 10

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

FieldValueSource
TitleThe Effect of Neurofeedback-assisted Mindfulness Training in Employees With Emotional LaborClinicalTrials.gov
NCT numberNCT03787407ClinicalTrials.gov
StatusCompletedClinicalTrials.gov
PhasesNot applicableClinicalTrials.gov
Enrollment96 participants, actualClinicalTrials.gov
Lead sponsorSeoul National University HospitalClinicalTrials.gov
ConditionsStress, PsychologicalClinicalTrials.gov
Interventionsstress management and meditationClinicalTrials.gov
First posted2018-12-26ClinicalTrials.gov
Last updated2019-01-11ClinicalTrials.gov

Registered outcomes 10

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescriptionSource
PrimaryChange from baseline Perceived Stress Scale (PSS) score at 4, 8 weeksBaseline and after 4, 8 weeks later
The full name: Perceived Stress Scale - 10 item form 14-item scale developed by Cohen et al. (1983) that emphasizes subjective perception of stress. Measures the degree of perceived unforeseeable, uncontrollable, and overwhelming experience of stress in the past month. Although the 14-item PSS tend to exhibit good reliability, four of the items tend to perform poorly when evaluated using exploratory factor analysis (Cohen et al., 1988). As a result, the PSS is commonly implemented using the 10-item form. The questions are rated on 5-point Likert scale; 0 (never), 1 (almost never), 2 (sometimes), 3 (fairly often), 4 (very often). Higher scores represent worse outcomes. The scores of each scale sum into the total score. Thus the total score ranges from 0 to 40.
ClinicalTrials.gov
SecondaryChange from baseline Korean Emotional Labor Assessment Tool scoreBaseline and after 4, 8 weeks later
The total of 26 items were Emotional expression and control 5 items, organizational monitoring and management system 4 items, forced customer response 4 items, emotional damage 6 items, organizational protection system 7 items, and organizational protection system is reverse coding and summed up. 4 point Likert scale (1 = not at all, 5 = very much), and the possible total score ranges from 26 to 130 points. The higher the score, the more emotional labor means.
ClinicalTrials.gov
SecondaryChange from baseline Korean abbreviation of Occupational Stress Scale (KOSS) scoreBaseline and after 4, 8 weeks later
total of 24 items were used, and each item was not at all (from 1 point) to very much (5 points). The higher the score, the more the job stress means. Job demand, Insufficient job control, job insecurity, interpersonal conflict, Organizational system, Lack of reward and Occupational climate.
ClinicalTrials.gov
SecondaryChange from baseline Patient Health Questionnaire 9 (PHQ-9) scoreBaseline and after 4, 8 weeks later
The total score is 0 to 27, and the higher the total score, the more severe the depressive symptoms. Cutpoints of 5, 10, 15 and 20 represent the thresholds for mild, moderate, moderate severe, and severe depression, respectively.
ClinicalTrials.gov
SecondaryChange from baseline Brief resilience scale (BRS) scoreBaseline and after 4, 8 weeks laterIt is composed of 6 questions and is evaluated on the 5-point scale (1: not at all, 5: very much)ClinicalTrials.gov
SecondaryChange from baseline Athens Insomnia Scale (AIS) scoreBaseline and after 4, 8 weeks latertotal score of 6 points was used as a breakpoint, this Using the quality index of Pittsburgh Sleep, which is widely used to evaluate the quality of sleepClinicalTrials.gov
SecondaryKorean Mindful Attention Awareness Scale; K-MAASBaseline and after 4, 8 weeks later
Modified from the Mindful Attention Awareness Scale, developed by Brown and Ryan (2003). 15-item scale designed to assess a core characteristic of dispositional mindfulness, namely, open or receptive awareness of and attention to what is taking place in the present.
ClinicalTrials.gov
SecondaryStroop testBaseline and after 4, 8 weeks laterassess the ability to inhibit cognitive interference that occurs when the processing of a specific stimulus feature impedes the simultaneous processing of a second stimulus attributeClinicalTrials.gov
SecondaryHeart Rate Variability (HRV)Baseline and after 4, 8 weeks laterHRV is recorded with a device (neuroNicle FX2, Laxtha) which include EEG and HRV recording system. HRV is calculated from pulse rate signal recorded at earlobe.ClinicalTrials.gov
SecondaryQuantitative electroencephalography (QEEG)Baseline and after 4, 8 weeks later
EEG is recorded with a device (neuroNicle FX2, Laxtha) which include EEG and HRV recording system. EEG signal is acquired at the prefrontal area, two channels (FP1, FP2) on forehead. Power spectrum analysis of the EEG data will be performed using Fourier analysis. And absolute power, relative power, of each frequency band, symmetry are included.
ClinicalTrials.gov

Outcomes 0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured asSource

Results by group 0

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnitsSource

Participant flow 0

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits countedSource

Adverse events 0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEventsSource

Adverse event totals 0

The totals the trial posted for each group.

TotalGroupAffectedAt riskSource

Papers 1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
37788060DERIVEDPubMed

Grants 0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal yearsSource

Trial comparisons 0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource

Tests 1

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

TestNamed asSource
Stroop Color-Word TestSecondary outcomeConductCognition

Source 5

FieldValueSource
Releasetrials-2026-11-12-0.4.0ClinicalTrials.gov
Release manifest SHA-2560f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4ClinicalTrials.gov
Registry capture2026-11-12ClinicalTrials.gov
Results copy, AACT2026-03-23ClinicalTrials.gov
NIH clinical studies file2026-11-13ClinicalTrials.gov

The same record as JSON

Release trials-2026-11-12-0.4.0

ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299 ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)