Trial Outcomes & Findings for Emotion Regulation and Emotion Perception (NCT NCT03790878)

NCT ID: NCT03790878

Last Updated: 2021-02-24

Results Overview

Emotion perception is measured by a computer-based behavioral assessment during the laboratory session. Scores for negative emotional expressions range from 0-100%, with higher scores indicating greater emotion perception accuracy.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

91 participants

Primary outcome timeframe

During the laboratory experiment (week 1)

Results posted on

2021-02-24

Participant Flow

11 participants were considered screen failures

Participant milestones

Participant milestones
Measure
Mindful Breathing
Participants receive training in a mindful breathing skill to regulate their emotional distress during a stressor task. They will then receive one week of reminders to use this skill, delivered through their mobile phones. Mindful Breathing: Training in a mindful breathing skill that reduces emotional distress
Habituation
Participants receive an exposure/habituation intervention to regulate their emotional distress during a stressor task. They will then receive one week of reminders, delivered through their mobile phones. Habituation: An exposure procedure that reduces emotional distress through habituation
Control
Participants complete the stressor task with no emotion regulation training. Similar to the other conditions, they will then receive one week of reminders, delivered through their mobile phones to test for placebo effects. Control: No emotion regulation intervention, placebo
Overall Study
STARTED
26
27
27
Overall Study
COMPLETED
26
27
27
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Emotion Regulation and Emotion Perception

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Mindful Breathing
n=26 Participants
Participants receive training in a mindful breathing skill to regulate their emotional distress during a stressor task. They will then receive one week of reminders to use this skill, delivered through their mobile phones. Mindful Breathing: Training in a mindful breathing skill that reduces emotional distress
Habituation
n=27 Participants
Participants receive an exposure/habituation intervention to regulate their emotional distress during a stressor task. They will then receive one week of reminders, delivered through their mobile phones. Habituation: An exposure procedure that reduces emotional distress through habituation
Control
n=27 Participants
Participants complete the stressor task with no emotion regulation training. Similar to the other conditions, they will then receive one week of reminders, delivered through their mobile phones to test for placebo effects. Control: No emotion regulation intervention, placebo
Total
n=80 Participants
Total of all reporting groups
Age, Continuous
27.56 years
STANDARD_DEVIATION 7.56 • n=5 Participants
23.77 years
STANDARD_DEVIATION 7.03 • n=7 Participants
23.77 years
STANDARD_DEVIATION 20 • n=5 Participants
25 years
STANDARD_DEVIATION 6.77 • n=4 Participants
Sex: Female, Male
Female
20 Participants
n=5 Participants
24 Participants
n=7 Participants
20 Participants
n=5 Participants
64 Participants
n=4 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
16 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
4 Participants
n=7 Participants
3 Participants
n=5 Participants
10 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
23 Participants
n=5 Participants
23 Participants
n=7 Participants
24 Participants
n=5 Participants
70 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
7 Participants
n=5 Participants
8 Participants
n=7 Participants
10 Participants
n=5 Participants
25 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
5 Participants
n=7 Participants
5 Participants
n=5 Participants
12 Participants
n=4 Participants
Race (NIH/OMB)
White
13 Participants
n=5 Participants
11 Participants
n=7 Participants
9 Participants
n=5 Participants
33 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
9 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Region of Enrollment
United States
26 participants
n=5 Participants
27 participants
n=7 Participants
27 participants
n=5 Participants
80 participants
n=4 Participants

PRIMARY outcome

Timeframe: During the laboratory experiment (week 1)

Population: Baseline data for one participant was not completed appropriately and was omitted from the analysis.

Emotion perception is measured by a computer-based behavioral assessment during the laboratory session. Scores for negative emotional expressions range from 0-100%, with higher scores indicating greater emotion perception accuracy.

Outcome measures

Outcome measures
Measure
Mindful Breathing
n=25 Participants
Participants receive training in a mindful breathing skill to regulate their emotional distress during a stressor task. They will then receive one week of reminders to use this skill, delivered through their mobile phones. Mindful Breathing: Training in a mindful breathing skill that reduces emotional distress
Habituation
n=27 Participants
Participants receive an exposure/habituation intervention to regulate their emotional distress during a stressor task. They will then receive one week of reminders, delivered through their mobile phones. Habituation: An exposure procedure that reduces emotional distress through habituation
Control
n=27 Participants
Participants complete the stressor task with no emotion regulation training. Similar to the other conditions, they will then receive one week of reminders, delivered through their mobile phones to test for placebo effects. Control: No emotion regulation intervention, placebo
The Ability to Perceive Negative and Positive Emotional Expressions, as Measured by a Behavioral Computer-based Assessment
77.31 Percent of correct responses
Standard Deviation 14.36
81.93 Percent of correct responses
Standard Deviation 17.94
84.85 Percent of correct responses
Standard Deviation 16

PRIMARY outcome

Timeframe: After the one week of phone-based intervention

Perception of positive emotional expressions and negative emotional expressions are measured by a behavioral phone-based assessment, delivered multiple times over one week via mobile phones. Scores for ratings of emotional valence range from 0-9, with higher scores as more positive emotional valence and lower scores as more negative emotional valence.

Outcome measures

Outcome measures
Measure
Mindful Breathing
n=26 Participants
Participants receive training in a mindful breathing skill to regulate their emotional distress during a stressor task. They will then receive one week of reminders to use this skill, delivered through their mobile phones. Mindful Breathing: Training in a mindful breathing skill that reduces emotional distress
Habituation
n=27 Participants
Participants receive an exposure/habituation intervention to regulate their emotional distress during a stressor task. They will then receive one week of reminders, delivered through their mobile phones. Habituation: An exposure procedure that reduces emotional distress through habituation
Control
n=27 Participants
Participants complete the stressor task with no emotion regulation training. Similar to the other conditions, they will then receive one week of reminders, delivered through their mobile phones to test for placebo effects. Control: No emotion regulation intervention, placebo
Changes in Emotion Perception, as Measured by a Phone-based Behavioral Assessment
5.19 units on a scale
Standard Deviation 2.57
5.3 units on a scale
Standard Deviation 2.54
5.23 units on a scale
Standard Deviation 2.59

SECONDARY outcome

Timeframe: Beginning of Week one laboratory experiment, End of Week one laboratory experiment

SUDS are measured on a 10-point Likert self-report scale of Subjective Units of Distress, ranging from 0-9. Scores are changes in SUDS ratings from before hearing the tone to after the tone, with greater scores indicating greater reductions in distress (positive outcomes). SUDS score was evaluated at the beginning of the laboratory experiment, and then at the very end of the lab experiment. The change score was calculated by subtracting the beginning score from the end score.

Outcome measures

Outcome measures
Measure
Mindful Breathing
n=26 Participants
Participants receive training in a mindful breathing skill to regulate their emotional distress during a stressor task. They will then receive one week of reminders to use this skill, delivered through their mobile phones. Mindful Breathing: Training in a mindful breathing skill that reduces emotional distress
Habituation
n=27 Participants
Participants receive an exposure/habituation intervention to regulate their emotional distress during a stressor task. They will then receive one week of reminders, delivered through their mobile phones. Habituation: An exposure procedure that reduces emotional distress through habituation
Control
n=27 Participants
Participants complete the stressor task with no emotion regulation training. Similar to the other conditions, they will then receive one week of reminders, delivered through their mobile phones to test for placebo effects. Control: No emotion regulation intervention, placebo
Change in Emotional Distress, as Measured by Subjective Units of Distress (SUDS)
1.14 units on a scale
Standard Deviation 1.21
0.61 units on a scale
Standard Deviation 0.9
0.56 units on a scale
Standard Deviation 0.95

OTHER_PRE_SPECIFIED outcome

Timeframe: Laboratory assessment, up to one week

Changes in emotional arousal are measured physiologically with electrodermal activity. Skin conductance response measures phasic changes in electrical conductivity of skin, with a minimum threshold of 0.01μS with higher values indicating greater changes in emotional arousal.

Outcome measures

Outcome data not reported

Adverse Events

Mindful Breathing

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Habituation

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Katherine (Kibby) McMahon

Duke University

Phone: 917-880-1551

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place