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The Effects and Mechanisms of Mindfulness Intervention for Emotional Distress: Daily Interventions and Daily Assessments

Not Applicable
Not yet recruiting
Conditions
Emotional Distress
Interventions
Behavioral: internet-based mindfulness intervention for emotional distress(iMIED)
Registration Number
NCT06034613
Lead Sponsor
Peking University
Brief Summary

This clinical trial seeks to uncover the mechanisms behind the effectiveness of mindfulness-based interventions in reducing emotional distress. Using daily diaries to measure both mediating and outcome variables, the study examines whether these mechanisms precede changes in outcomes. It focuses on the Mindfulness Intervention for Emotional Distress program, which includes four strategies. The current study plans to employ a within-subjects design with daily questionnaires over 63 days, before, during and after the intervention. The aim is to gain insights into how mindfulness interventions work in alleviating emotional distress.

Detailed Description

An abundance of research studies has demonstrated the potential efficacy of mindfulness-based interventions in alleviating emotional distress among individuals. However, the underlying mechanisms driving these effects have remained largely unknown. Furthermore, many of the mechanistic investigations have not taken into account the temporal precedence, where changes in mechanisms occur prior to changes in outcome variables.

To address these gaps, this clinical trial aims to enhance our understanding of the mechanisms behind mindfulness-based interventions for emotional distress. By employing a daily diary approach to measure both mediating and outcome variables, investigators seek to rigorously examine whether the proposed mediating variables adhere to the criterion of temporal precedence. Additionally, utilizing daily diaries allows for the collection of extensive individual-level data. This approach also permits a network analysis perspective to explore the roles of various mechanistic variables in the context of mitigating emotional distress.

The present study focuses on the Mindfulness Intervention for Emotional Distress program (liu, in press), comprising four key strategies: 1) Engaging in life to restore a sense of normalcy; 2) Enhancing distress tolerance; 3) Reducing excessive emotional reactivity; 4) Cultivating cognitive flexibility by treating thoughts as mere mental events. Through the implementation of daily diaries, investigators aim to uncover the mechanistic workings of these four strategies.

The current study plans to employ a within-subjects design, with participants all receiving mindfulness intervention. They are required to complete daily measurement questionnaires during the week prior to intervention, throughout the intervention period, and for a week following the intervention. The measurement period spans a total of 63 days.

Through this study design, investigators aim to gain valuable insights into the mechanisms underpinning the effectiveness of mindfulness interventions in alleviating emotional distress.

Recruitment & Eligibility

Status
NOT_YET_RECRUITING
Sex
All
Target Recruitment
100
Inclusion Criteria
  • Subjects with scores greater than 21 on the Kessler Psychological Distress Scale.
Exclusion Criteria
  • Subjects who could not access the Internet.
  • Subjects with insufficient Chinese ability.
  • Subjects who have participated in mindfulness-based projects for more than 6 weeks before, and / or the current frequency of meditation practice is more than once a week.
  • Patients with schizophrenia or psychotic affective disorder, current organic mental disorder, substance abuse disorder and generalized developmental disorder.
  • Subjects at risk of suicide.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
mindfulness intervention groupinternet-based mindfulness intervention for emotional distress(iMIED)provide standard audio instructions for mindfulness exercises, introduce the nature and law of anxiety, depression and other emotions, the source of anxiety, depression and other emotional distress, and the strategies and methods to alleviate emotional distress. These exercises, knowledge and strategies are based on the latest progress in the field of psychological counseling and treatment, and their application in daily life can help alleviate anxiety, depression and other emotional problems.
Primary Outcome Measures
NameTimeMethod
Daily changes of distress toleranceonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

measured by Daily distress tolerance scale, four items, scores range from 4 to 20, with higher scores indicating higher levels of distress tolerance.

Daily changes of mindfulnessonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

The Daily Mindfulness Response Scale measures the frequency with which one returns to a nonjudgmental and unconditionally receptive present moment awareness during the day. Each item is rated on a scale ranging from 1 (rarely)to10(often).

scores range from 4 to 40, with higher scores indicating higher levels of mindful responding

Daily changes of engaging in everyday lifeonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Self-developed questionnaire, measuring to what extent individuals put efforts and time in engaging in everyday life (e.g., work, social, leisure...), 6 items, scores range from 6 to 54, with higher scores indicating higher levels of engaging in everyday life

Daily changes of excessive emotion behaviorsonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

self-developed scale, measuring to what extent individuals use excessive emotion behaviors to control aversive feelings and emotions, 4 items, scores range from 4 to 20, with higher scores indicating higher levels of using excessive emotion behaviors.

Daily changes of positive and negative affectonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Daily positive and negative affect were measured using the 10-itemInternational Positive and Negative Affect Schedule-Short Form Scale. Scores range from 5 to 25, with higher scores indicating higher levels of positive/negative affect.

daily changes of depressiononce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Daily Depression Severity and Impairment Scale,5 items, scores range from 0 to 20, with higher scores indicating higher levels of depression.

daily stressonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Daily perceived stress was assessed with the previously validated four-item version of the Perceived Stress Scale, The PSS measures the degree to which situations in one's life are evaluated as stressful (e.g., "Today, to what extent did you feel confident about your ability to handle your personal problems?"). Participants rated the accuracy of the items using a scale ranging from 1 (very little)to 10 (very much). scores range from 4 to 40.

Daily changes of cognitive flexibility/treating thoughts as thoughtsonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

self-developed questionnaire, measuring to what extent individuals could treat thoughts as psychological phenomenon rather than facts, 4 items, scores range from 4 to 20, with higher scores indicating higher levels of cognitive flexibility.

daily changes of anxietyonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Daily Anxiety Severity and Impairment Scale,5 items, scores range from 0 to 20, with higher scores indicating higher levels of anxiety.

Secondary Outcome Measures
NameTimeMethod
pre-post changes of the Overall Anxiety Severity and Impairment Scale1 week before the intervention, 1week after the intervention

The Overall Anxiety Severity and Impairment Scale is a self-reported questionnaire measuring anxiety. Scores range from 0 to 20, with higher scores indicating higher levels of anxiety.

pre-post changes of Patient Health Questionnaire during the intervention1 week before the intervention, 1week after the intervention

The Patient Health Questionnaire is a self-reported questionnaire measuring the degree of being troubled by various common physical symptoms. Scores range from 0 to 30.0\~4 scores: no physical symptoms; 5\~9 scores: mild physical symptoms; 10\~14 scores: moderate physical symptoms; 15\~30 scores: severe physical symptoms.

pre-post changes of the Brief Experiential Avoidance Questionnaire1 week before the intervention, 1week after the intervention

Chinese version of the Brief Experiential Avoidance Questionnaire scale is used to measure Experiential Avoidance.Scores range from 15 to 90, with higher scores indicating higher levels of experiential avoidance.

pre-post changes of Chinese Perceived Stress Scale1 week before the intervention, 1week after the intervention

The Chinese Perceived Stress Scale is a self-reported questionnaire measuring stress. Scores range from 0 to 56, with higher scores indicating higher levels of stress

pre-post changes of Distress Tolerance Scale1 week before the intervention, 1week after the intervention

Distress Tolerance Scale is used to measure Distress Tolerance. Scores range from 5 to 75, with higher scores indicating higher levels of Distress Tolerance.

daily stressorsonce per day for 63 days (1 week pre-intervention, 7 weeks during the intervention, 1 week post-intervention)

Daily stressor exposure was measured with 1 item, 0 = no, 1 = yes

pre-post changes of Five Facet Mindfulness Questionnaire1 week before the intervention, 1week after the intervention

The Five Facet Mindfulness Questionnaire is a self-reported questionnaire measuring mindfulness levels. Scores range from 39 to 195, with higher scores indicating higher levels of mindfulness.

pre-post changes of 10-item Kessler Psychological Distress Scale1 week before the intervention, 1week after the intervention

The 10-item Kessler Psychological Distress Scale is a self-reported questionnaire measuring distress. Scores range from 10 to 50, with higher scores indicating higher levels of distress.

pre-post changes of treating thoughts as thoughts/cognitive flexibility1 week before the intervention, 1week after the intervention

The questionnaire has 1 dimension and contains 6 items on a five-point Likert scale (1=completely compliant, 5=completely non-compliant), with higher scores indicating higher ability to treat ideas as ideas.

pre-post changes of the Overall Depression Severity and Impairment Scale1 week before the intervention, 1week after the intervention

The Overall Depression Severity and Impairment Scale is a self-reported questionnaire measuring depression. Scores range from 0 to 20, with higher scores indicating higher levels of depression.

pre-post changes of Beck Depression Inventory1 week before the intervention, 1week after the intervention

Beck Depression Inventory is a self-reported questionnaire measuring depression level.Scores range from 0 to 63, with higher scores indicating higher levels of depression.

pre-post changes of Athens Insomnia Scale1 week before the intervention, 1week after the intervention

The Athens Insomnia Scale is a self-reported questionnaire measuring sleepy quality. Scores range from 0 to 24, with lower scores indicating higher levels of sleep quality.

pre-post changes of Beck Anxiety Inventory1 week before the intervention, 1week after the intervention

Beck Anxiety Inventory is a self-reported questionnaire measuring Anxiety level.Scores range from 0 to 63, with higher scores indicating higher levels of Anxiety.

pre-post changes of engaging in everyday life1 week before the intervention, 1week after the intervention

The Chinese version of the Likert 5-point self-administered scale contains five dimensions, including sleep, diet, socialization, work and study, and other aspects, with a total of 15 entries, and the higher the total score indicates the worse the state of life compared with the surrounding people. The internal consistency reliability of the scale was 0.895, and the results of factor analysis and convergent validity analysis were good.

pre-post changes of the Rumination sub-scale1 week before the intervention, 1week after the intervention

12 items from the Rumination-Reflection Questionnaire, the Rumination subscale. Total scores range from 5 to 60, with higher scores indicating higher levels of rumination.

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