NCT03148678

Brief Summary

The overall goal of the outlined study is to scrutinize and to promote mindfulness via new technologies using a combination of smartphone-based assessment and micro-interventions, fMRI and real-time fMRI-neurofeedback.

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2017

Typical duration for not_applicable

Geographic Reach
2 countries

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 24, 2017

Completed
7 days until next milestone

Study Start

First participant enrolled

March 31, 2017

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 11, 2017

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 5, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 5, 2019

Completed
Last Updated

December 16, 2024

Status Verified

December 1, 2024

Enrollment Period

1.9 years

First QC Date

March 24, 2017

Last Update Submit

December 12, 2024

Conditions

Keywords

Emotional reactivityCognitive flexibility

Outcome Measures

Primary Outcomes (4)

  • Blood oxygenation level dependent (BOLD) Signal assessed by MRI

    Blood oxygenation level dependent (BOLD) signal assessed via functional magnetic resonance imaging

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • State mindfulness assessed by State Mindfulness Scale

    State mindfulness, assessed via State Mindfulness Scale (SMS)

    Daily, during smartphone-based micro-interventions (duration: 10 days); on 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last smartphone-based micro-intervention days)

  • Subjective stress reactivity assessed by Visual Analog Scale

    Subjective stress reactivity, assessed via Visual Analog Scale (VAS)

    Daily, during smartphone-based micro-interventions (duration: 10 days); on 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last smartphone-based micro-intervention days)

  • Subjective mood assessed by Multidimensional Mood State Questionnaire

    Subjective mood, assessed via Multidimensional Mood State Questionnaire (MDMQ)

    Daily, during smartphone-based micro-interventions (duration: 10 days); on 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last smartphone-based micro-intervention days)

Secondary Outcomes (3)

  • Emotional reactivity assessed by emotion recognition task

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • Working Memory assessed by N-back task test

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • Cognitive flexibility assessed by computer version of Wisconsin card sorting Task test

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

Other Outcomes (4)

  • Respiration Signal assessed by sensor

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • Trait mindfulness assessed by Mindful Attention Awareness Scale

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • Heart rate assessed by sensor

    On 1 day, which is the laboratory assessment day (scheduled 1 day subsequent to the last of the 10 smartphone-based micro-intervention days)

  • +1 more other outcomes

Study Arms (4)

Mindfulness first; Contingent RT-fMRI-NF

EXPERIMENTAL

Participants start with the mindfulness intervention followed by the mind wandering intervention. The arm type "experimental" refers to contingent RT-fMRI-NF, during which participants are provided with contingent RT-fMRI-NF of their own brain activity.

Behavioral: MindfulnessOther: Contingent RT-fMRI-NFBehavioral: Mind Wandering

Mindfulness first; Non-Contingent Neurofeedback

SHAM COMPARATOR

Participants start with the mindfulness intervention followed by the mind wandering intervention. The arm type "sham comparator" refers to non-contingent RT-fMRI-NF, during which participants are provided with sham RT-fMRI-NF of brain activity of previously recorded subject.

Behavioral: MindfulnessOther: Sham RT-fMRI-NFBehavioral: Mind Wandering

Mind wandering first; Contingent Neurofeedback

EXPERIMENTAL

Participants start with the mind wandering intervention followed by the mindfulness intervention. The arm type "experimental" refers to contingent RT-fMRI-NF, during which participants are provided with contingent RT-fMRI-NF of their own brain activity.

Behavioral: MindfulnessOther: Contingent RT-fMRI-NFBehavioral: Mind Wandering

Mind wandering first; Non-Contingent Neurofeedback

SHAM COMPARATOR

Participants start with the mind wandering intervention followed by the mindfulness intervention. The arm type "sham comparator" refers to non-contingent RT-fMRI-NF, during which participants are provided with sham RT-fMRI-NF of brain activity of previously recorded subject.

Behavioral: MindfulnessOther: Sham RT-fMRI-NFBehavioral: Mind Wandering

Interventions

MindfulnessBEHAVIORAL

Subjects are provided with smartphone-based mindfulness intervention.

Mind wandering first; Contingent NeurofeedbackMind wandering first; Non-Contingent NeurofeedbackMindfulness first; Contingent RT-fMRI-NFMindfulness first; Non-Contingent Neurofeedback

Subjects are provided with contingent RT-fMRI-NF of their own brain activity.

Mind wandering first; Contingent NeurofeedbackMindfulness first; Contingent RT-fMRI-NF

Subjects are provided with sham RT-fMRI-NF of brain activity of previously recorded subject.

Mind wandering first; Non-Contingent NeurofeedbackMindfulness first; Non-Contingent Neurofeedback
Mind WanderingBEHAVIORAL

Subjects are provided with smartphone-based mind wandering intervention.

Mind wandering first; Contingent NeurofeedbackMind wandering first; Non-Contingent NeurofeedbackMindfulness first; Contingent RT-fMRI-NFMindfulness first; Non-Contingent Neurofeedback

Eligibility Criteria

Age18 Years - 65 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Right-handedness
  • Ability to participate in study procedures

You may not qualify if:

  • Color-Blindness
  • Present or past psychological or psychiatric therapy
  • Presence of cardiovascular disease
  • History of major cerebral injury
  • Medical MRI contraindication

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Korea University

Seoul, South Korea

Location

University of Basel

Basel, Switzerland

Location

Related Publications (1)

  • Kim HC, Lee JH. Spectral dynamic causal modeling of mindfulness, mind-wandering, and resting-state in the triple network using fMRI. Neuroreport. 2022 Mar 23;33(5):221-226. doi: 10.1097/WNR.0000000000001772.

MeSH Terms

Interventions

Mindfulness

Intervention Hierarchy (Ancestors)

Cognitive Behavioral TherapyBehavior TherapyPsychotherapyBehavioral Disciplines and Activities

Study Officials

  • Jong-Hwan Lee, Ph.D.

    Korea University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
SEQUENTIAL
Model Details: A combination of sequential (mindfulness vs. mind wandering intervention) and parallel design (contingent vs. non-contingent RT-fMRI-NF)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 24, 2017

First Posted

May 11, 2017

Study Start

March 31, 2017

Primary Completion

March 5, 2019

Study Completion

March 5, 2019

Last Updated

December 16, 2024

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations