Examine the Effects of Meditation on Daily Psychological Stress Responses in Woman With a History of Child Adversity

Pilot Testing of an Ecological Momentary Mindfulness-based Intervention (EMMI) for People With Early Life Adversity

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04606199

Acronym

EMMI

Enrollment

Registered

2020-10-28

Start date

2020-11-02

Completion date

2021-07-12

Last updated

2025-05-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Child Maltreatment, Depressive Symptoms, Psychological, Psychological Distress, Psychological Stress, Signs and Symptoms, Stress

Keywords

Mindfulness, Adverse childhood experiences, Stress appraisals, Affect, Daily psychological stress responses, Stress, Depressive symptoms

Brief summary

The aim of the Everyday Moments of Mindfulness (EMMI) study is to test whether brief mindfulness-based practices will improve daily psychological stress responses in women (age 30-60) who report a history of early life adversity. Following a baseline visit (remotely or in person), participants complete daily surveys and audio-guided mindfulness-based practices in everyday life via the study app. Specifically, participants receive app-notifications three times/day (morning, afternoon, evening) to complete daily surveys of current stressors and psychological states. At each notification, each participant is then randomly assigned to either receive a mindfulness-based intervention or not (max of 3 interventions/day). Thus, participants are randomized many times over the course of this 30-day study. At the end of the study, participants complete a follow-up visit (remotely or in person).

Detailed description

The aim of the present study is to test whether brief app-based mindfulness and compassion practices will improve daily psychological stress responses in a sample of adult women (age 30-60) who report a history of early life adversity. The study will incorporate surveys and mindfulness-based intervention practices into everyday life using mobile technology (study app). Participants receive app-notifications three times/day (morning, afternoon, evening) to complete Ecological Momentary Assessments (EMAs) of current psychological stress states (pre-EMA; e.g., stress appraisals, affect, perseverative cognitions, self-criticism, social connection). At each notification, each participant is then randomized to either receive a mindfulness-based intervention (described in detail below) or no intervention. Thus, each participant is randomized many times over this 30-day study (Micro-Randomized Trial, MRT). Psychological stress states are again measured approximately 15 min post-randomization (post-EMA; e.g., stress appraisals, affect, perseverative cognitions, self-criticism, social connection) to assess a treatment effect by comparing psychological stress responses after a mindfulness-based intervention vs. no intervention. The MRT will continue for 30 days. All study participants will be asked to fill out questionnaires at baseline and post-intervention (after 30 days). Weekly measures of depressive symptoms are also obtained. A trained research assistant will monitor participant adherence and address potential difficulties. Mindfulness-based intervention: The intervention consists of mindfulness and compassion-based practices. For example, practices focus on the breath/body (e.g., 3 minute breathing space; compassionate body scan; five senses mediation), on increasing participants' inner resources (e.g., imaging a safe person or safe place), on reducing negative affect (e.g., self-compassionate and acceptance-based practices), or on increasing positive emotions (e.g., gratitude practice; metta practices). All interventions are brief (≤5 minutes) and audio-guided.

Interventions

BEHAVIORALMindfulness-based intervention, up to 5 minutes 0-3 times/day

The intervention consist of mindfulness and compassion-based practices that are selected to maximize their effect on stress targets. Interventions include, for example, practices that focus on the breath/body (e.g., 3 minute breathing space; compassionate body scan; five senses mediation), on increasing participants' inner resources (e.g., imaging a safe person or safe place), on reducing negative affect (e.g., self-compassion and acceptance-based practices), or on increasing positive emotions (e.g., gratitude practice; metta practices).

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

BASIC_SCIENCE

Masking

DOUBLE (Investigator, Outcomes Assessor)

Masking description

Since the study uses a MRT design (each participant is randomized multiple times), the investigator and outcomes assessor do not know at what time points participants are assigned to an intervention or not over the course of this 30-day study.

Intervention model description

A Micro-Randomized Trial (MRT) is a design that randomly assigns an intervention at each notification time point (similar to a crossover design in that each participant is randomized to both conditions at different times, except in the MRT the crossover occurs at multiple times): Participants use the study app for 30 days and receive three notifications per day. At each notification time point, participants complete an Ecological Momentary Assessment (EMA) of their current psychological stress states (pre-EMA). Then, at each notification, each participant is randomized (50 percent probability) to either receive a mindfulness-based intervention or not. Thus, participants are randomized many times over the 30-day study. Approximately thirty minutes post-randomization, an EMA is obtained again to assess psychological stress states (post-EMA). A treatment effect is examined by comparing psychological stress responses after a mindfulness-based intervention compared to no intervention.

Eligibility

Sex/Gender

FEMALE

Age

30 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* female gender * age 30-60 * reports at least two adverse childhood experiences on the 10-item Adverse Childhood Experiences (ACE) scale * reports at least mild depressive symptoms (Patient Health Questionnaire ≥ 5) * has access to a personal smartphone

Exclusion criteria

* Non-English speaker or unable to provide informed consent * Current regular mindfulness practice (exclude if \>20 min/week) * Diagnosis of severe psychiatric disorders, including psychosis/schizophrenia, bipolar disorder, post-traumatic stress disorder (PTSD), alcohol/substance-use disorder, major depressive disorder (PHQ-9 ≥ 15), and self-harm or suicidal ideation (PHQ-9, item 9). * Unstable medication use and psychotherapy treatment (\<3 months).

Design outcomes

Primary

Measure	Time frame	Description
Change in Stressor Demands, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Stressor demands were measured by computing a total mean score of I feel stressed, anxious, overwhelmed and I feel strained, upset, overburdened. The total mean score ranges from 1 to 7, with higher scores indicating greater stressor demands. Stressor demands were assessed at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of stressor demands immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in stressor demands was calculated as post-EMA minus pre-EMA.
Change in Negative Affect, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Negative affect was measured by computing a total mean score of I feel sad, downhearted, unhappy and I feel angry, irritated, frustrated. The total mean score ranges from 1 to 7, with higher scores indicating greater negative affect. Negative affect was measured at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of negative affect immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in negative affect was calculated as post-EMA minus pre-EMA.

Secondary

Measure	Time frame	Description
Change in Positive Affect, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Positive affect was measured by computing a total mean score of I feel joyful, glad, happy, I feel calm, peaceful, quiet and I feel grateful, appreciative, thankful. The total mean score ranges from 1 to 7, with higher scores indicating greater positive affect. Positive affect was assessed at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of positive affect immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Changes in positive affect was calculated as post-EMA minus pre-EMA.
Change in Perseverative Cognitions, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Perseverative cognitions were measured by computing a total mean score of I feel worried, concerned, uneasy and I dwell, ruminate, brood on my personal problems and feelings. The total mean score ranges from 1 to 7, with higher scores indicating greater perseverative cognitions (greater rumination/worry). Perseverative cognitions were assessed at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of perseverative cognitions immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in perseverative cognitions was calculated as post-EMA minus pre-EMA.
Change in Self-criticism, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Self-criticism were measured by computing a total mean score of I feel self-critical, self-blaming, self-loathing and I feel inadequate, not good enough, unworthy. The total mean score ranges from 1 to 7, with higher scores indicating greater self-criticism. Self-criticism was assessed at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of self-criticism immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in self-criticism was calculated as post-EMA minus pre-EMA.
Change in Coping Resources, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Coping resources were measured by computing a total mean score of I feel in control, coping well, on top of things and I feel capable, competent, managing well. The total mean score ranges from 1 to 7, with higher scores indicating greater coping resources. Coping resources were measured at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of coping resources immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in coping resources was calculated as post-EMA minus pre-EMA.
Change in Contextualized Stressor Demands, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Participants were asked about current stressors (Is there a stressful situation in your day right now?) using a 7-point scale (1 = not at all; 7 = extremely). If a response other than not at all was endorsed, contextualized stressor demands (How demanding is it to deal with this situation well right now?) was measured on a 7-point scale (1 = not at all; 7 = extremely) at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of contextualized stressor demands immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in contextualized stressor demands was calculated as post-EMA minus pre-EMA.
Change in Contextualized Coping Resources, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Participants were asked about current stressors (Is there a stressful situation in your day right now?) using a 7-point scale (1 = not at all; 7 = extremely). If a response other than not at all was endorsed, contextualized coping resources (Do you feel like you can handle this situation well right now?) were measured on a 7-point scale (1 = not at all; 7 = extremely) at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of contextualized coping resources immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in contextualized coping resources was calculated as post-EMA minus pre-EMA.
Change in Negative Stressor Impact, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Participants were asked about current stressors (Is there a stressful situation in your day right now?) using a 7-point scale (1 = not at all; 7 = extremely). If a response other than not at all was endorsed, negative stressor impact \[How much does this situation negatively impact you right now (e.g., interferes with your well-being or functioning)?\] was measured on a 7-point scale (1 = not at all; 7 = extremely) at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of negative stressor impact immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in negative stressor impact was calculated as post-EMA minus pre-EMA.
Change in Social Connection, as Measured by Ecological Momentary Assessment (EMA)	From pre-EMA (immediately prior to intervention randomization) to post-EMA, approximately 15 minutes post-randomization, over a period of 30 days.	Social connection was measured by computing a total mean score of I feel love, closeness, trust and I feel lonely, isolated, disconnected \[reverse coded\]). The total mean score ranges from 1 to 7, with higher scores indicating greater social connection. Social connection was assessed at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of social connection immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in social connection was calculated as post-EMA minus pre-EMA.

Other

Measure	Time frame	Description
Change in Depressive Symptoms, as Measured by the 9-item Patient Health Questionnaire (PHQ-9).	Baseline to post-intervention, over a period of 30 days.	The 9-item Patient Health Questionnaire (PHQ-9) has a total score scale range of 0 to 27, with higher values indicating more depressive symptoms. Change in depressive symptoms was calculated as post-intervention minus baseline values.
Change in Anxiety, as Measured by the 7-item General Anxiety Disorder (GAD-7) Questionnaire	Baseline to post-intervention, over a period of 30 days.	The 7-item General Anxiety Disorder (GAD-7) questionnaire assesses symptoms of anxiety in the past 2 weeks. The total score scale ranges from 0 to 21, with higher values indicating higher anxiety. Change in anxiety was calculated as post-intervention minus baseline values.
Change in Perceived Stress, as Measured by the 10-item Perceived Stress Scale (PSS)	Baseline to post-intervention, over a period of 30 days.	The 10-item Perceived Stress Scale (PSS) has a total score scale range of 0 to 40, with higher values indicating higher perceived stress. Change in perceived stress was calculated as post-intervention minus baseline values.

Countries

United States

Participant flow

Participants by arm

Arm	Count
Mindfulness-based Micro-intervention Overview: The study used a micro-randomized trial design in which participants received app-notifications three times/day (morning, afternoon, evening). At each notification time-point, participants had a 50% chance of receiving either a mindfulness-based intervention or no intervention (described below). Thus, each participant was randomized many times over this 30-day study. Mindfulness-based intervention: Participants randomly assigned to an app-based mindfulness intervention were instructed to do a brief (\<5 min) audio-guided mindfulness practice. The intervention was randomly selected out of 12 practices that consisted of mindfulness and compassion-based practices (e.g., 3 minute breathing space; compassionate body scan; five senses meditation, imagining a safe person or safe place, self-compassion and acceptance-based practices; gratitude practice; metta practices). No intervention: Participants randomly assigned to no intervention just continued their normal activities; they did not practice any form of mindfulness mediation at the time of app-notification.	53
Total	53

Arm

Count

Mindfulness-based Micro-intervention

Overview: The study used a micro-randomized trial design in which participants received app-notifications three times/day (morning, afternoon, evening). At each notification time-point, participants had a 50% chance of receiving either a mindfulness-based intervention or no intervention (described below). Thus, each participant was randomized many times over this 30-day study. Mindfulness-based intervention: Participants randomly assigned to an app-based mindfulness intervention were instructed to do a brief (\<5 min) audio-guided mindfulness practice. The intervention was randomly selected out of 12 practices that consisted of mindfulness and compassion-based practices (e.g., 3 minute breathing space; compassionate body scan; five senses meditation, imagining a safe person or safe place, self-compassion and acceptance-based practices; gratitude practice; metta practices). No intervention: Participants randomly assigned to no intervention just continued their normal activities; they did not practice any form of mindfulness mediation at the time of app-notification.

Total

Withdrawals & dropouts

Period	Reason	FG000
Overall Study	Withdrawal by Subject	2

Baseline characteristics

Characteristic	Mindfulness-based Micro-intervention
10-item Perceived Stress Scale (PSS)	23.47 units on a scale STANDARD_DEVIATION 5.84
7-item General Anxiety Disorder (GAD-7)	9.75 units on a scale STANDARD_DEVIATION 4.99
9-item Patient Health Questionnaire (PHQ-9)	8.62 units on a scale STANDARD_DEVIATION 2.33
Age, Continuous	40.85 years STANDARD_DEVIATION 8.46
Ethnicity (NIH/OMB) Hispanic or Latino	2 Participants
Ethnicity (NIH/OMB) Not Hispanic or Latino	51 Participants
Ethnicity (NIH/OMB) Unknown or Not Reported	0 Participants
Race (NIH/OMB) American Indian or Alaska Native	0 Participants
Race (NIH/OMB) Asian	13 Participants
Race (NIH/OMB) Black or African American	9 Participants
Race (NIH/OMB) More than one race	4 Participants
Race (NIH/OMB) Native Hawaiian or Other Pacific Islander	2 Participants
Race (NIH/OMB) Unknown or Not Reported	1 Participants
Race (NIH/OMB) White	24 Participants
Region of Enrollment United States	53 Participants
Sex: Female, Male Female	53 Participants
Sex: Female, Male Male	0 Participants

Adverse events

Event type	EG000 affected / at risk
deaths Total, all-cause mortality	0 / 53
other Total, other adverse events	0 / 53
serious Total, serious adverse events	0 / 53

Outcome results

Primary

Change in Negative Affect, as Measured by Ecological Momentary Assessment (EMA)

Negative affect was measured by computing a total mean score of I feel sad, downhearted, unhappy and I feel angry, irritated, frustrated. The total mean score ranges from 1 to 7, with higher scores indicating greater negative affect. Negative affect was measured at notification time points 3 times/day over a 30-day period. At each notification time point, participants completed EMAs of negative affect immediately prior to intervention randomization (pre-EMA) and approximately 15 minutes post randomization (post-EMA). Change in negative affect was calculated as post-EMA minus pre-EMA.