Trial Outcomes & Findings for Racial Discrimination and Stress Response (NCT NCT05820659)
NCT ID: NCT05820659
Last Updated: 2026-08-17
Results Overview
adolescents' salivary samples will be collected, frozen, and assayed for inflammatory biomarker of C-reactive protein
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
178 participants
Primary outcome timeframe
adolescents' salivary samples will be collected at five time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)
Results posted on
2026-08-17
Participant Flow
Participant milestones
| Measure |
Stress Inducing and Discussion Task
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task, parent-child conversation about peer rejection task, and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Parent-child conversation about peer rejection task: Adolescents and parents were provided with suggested question prompts to talk about the peer rejection task, following a baseline task of talking about last night's dinner.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Impossible Puzzle
STARTED
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178
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Impossible Puzzle
Adolescents
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89
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Impossible Puzzle
Parents
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89
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Impossible Puzzle
COMPLETED
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178
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Impossible Puzzle
NOT COMPLETED
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0
|
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Peer Rejection Task
STARTED
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178
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Peer Rejection Task
Adolescents
|
89
|
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Peer Rejection Task
Parents
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89
|
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Peer Rejection Task
COMPLETED
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160
|
|
Peer Rejection Task
NOT COMPLETED
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18
|
|
Conversation about Peer Rejection
STARTED
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160
|
|
Conversation about Peer Rejection
Adolescents
|
80
|
|
Conversation about Peer Rejection
Parents
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80
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Conversation about Peer Rejection
COMPLETED
|
136
|
|
Conversation about Peer Rejection
NOT COMPLETED
|
24
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Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Four adolescents and 42 parents did not report their specific ages.
Baseline characteristics by cohort
| Measure |
Stress Inducing and Discussion Task
n=178 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, discuss with parents about the peer rejection task, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task, parent-child conversation about peer rejection task, and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Parent-child conversation about peer rejection task: Adolescents and parents were provided with suggested question prompts to talk about the peer rejection task, following a baseline task of talking about last night's dinner.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Age, Continuous
Adolescents
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12.28 years
STANDARD_DEVIATION 1.59 • n=85 Participants • Four adolescents and 42 parents did not report their specific ages.
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Age, Continuous
Parents
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39.79 years
STANDARD_DEVIATION 6.82 • n=47 Participants • Four adolescents and 42 parents did not report their specific ages.
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|
Sex: Female, Male
Adolescents · Female
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48 Participants
n=89 Participants • Adolescent participants (89) and their parents (89) started the ARM.
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Sex: Female, Male
Adolescents · Male
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41 Participants
n=89 Participants • Adolescent participants (89) and their parents (89) started the ARM.
|
|
Sex: Female, Male
Parents · Female
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82 Participants
n=89 Participants • Adolescent participants (89) and their parents (89) started the ARM.
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Sex: Female, Male
Parents · Male
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7 Participants
n=89 Participants • Adolescent participants (89) and their parents (89) started the ARM.
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|
Ethnicity (NIH/OMB)
Adolescents · Hispanic or Latino
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41 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
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|
Ethnicity (NIH/OMB)
Adolescents · Not Hispanic or Latino
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48 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
|
|
Ethnicity (NIH/OMB)
Adolescents · Unknown or Not Reported
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0 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
|
|
Ethnicity (NIH/OMB)
Parents · Hispanic or Latino
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41 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
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|
Ethnicity (NIH/OMB)
Parents · Not Hispanic or Latino
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48 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
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|
Ethnicity (NIH/OMB)
Parents · Unknown or Not Reported
|
0 Participants
n=89 Participants • Adolescents (89) and their parents (89) started the ARM.
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Region of Enrollment
United States
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178 participants
n=178 Participants
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Body Mass Index (BMI)
Adolescents
|
21.50 kg/m^2
STANDARD_DEVIATION 5.87 • n=88 Participants • A total of 89 adolescents and their parents started the ARM. One adolescent did not measure the height. None of the parents measured their weight and height.
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PRIMARY outcome
Timeframe: baseline (5 minute before to right before the task), during (start to the end of the task), and post-task (right after to 45 minutes after the peer rejection task)Population: Only 80 adolescents completed the peer rejection task. One adolescent did not provide any blood pressure readings.
adolescents' diastolic and systolic blood pressure will be continuously monitored.
Outcome measures
| Measure |
Stress Inducing Task
n=79 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Mean Arterial Pressure for Peer Rejection
baseline mean arterial pressure
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74.89 mmHg
Standard Deviation 6.51
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Change in Mean Arterial Pressure for Peer Rejection
mean arterial pressure during the task
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78.57 mmHg
Standard Deviation 7.04
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Change in Mean Arterial Pressure for Peer Rejection
post-task blood pressure
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77.81 mmHg
Standard Deviation 7.66
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PRIMARY outcome
Timeframe: five time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)Population: Only 80 adolescents went through the peer rejection task and 6 adolescents did not provide any salivary samples. A few adolescent participants' salivary cortisol data were missing because some of their saliva samples did not provide sufficient measures.
adolescents' salivary samples will be collected, frozen, and assayed for cortisol.
Outcome measures
| Measure |
Stress Inducing Task
n=74 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Stress Hormones for Peer Rejection
stress hormone right before the task
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0.17 μg/dL
Standard Deviation 0.08
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Change in Stress Hormones for Peer Rejection
stress hormone 5 minutes after the task
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0.16 μg/dL
Standard Deviation 0.07
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Change in Stress Hormones for Peer Rejection
stress hormone 15 minutes after the task
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0.14 μg/dL
Standard Deviation 0.07
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Change in Stress Hormones for Peer Rejection
stress hormone 30 minutes after the task
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0.14 μg/dL
Standard Deviation 0.07
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Change in Stress Hormones for Peer Rejection
stress hormone 45 minutes after the task
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0.13 μg/dL
Standard Deviation 0.06
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PRIMARY outcome
Timeframe: five time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)Population: Only 80 adolescents went through the peer rejection task and 6 adolescents did not provide any salivary samples. Many adolescents' salivary Interleukin 6 data were missing because some of their saliva samples did not provide sufficient measures.
adolescents' salivary samples will be collected, frozen, and assayed for inflammatory biomarker of Interleukin-6
Outcome measures
| Measure |
Stress Inducing Task
n=74 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejection
Interleukin-6 right before the task
|
41.57 pg/ml
Standard Deviation 86.94
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|
Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejection
Interleukin-6 5 minutes after the task
|
26.12 pg/ml
Standard Deviation 55.67
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Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejection
Interleukin-6 15 minutes after the task
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23.75 pg/ml
Standard Deviation 56.50
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Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejection
Interleukin-6 30 minutes after the task
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33.49 pg/ml
Standard Deviation 87.66
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Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejection
Interleukin-6 45 minutes after the task
|
21.71 pg/ml
Standard Deviation 40.22
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PRIMARY outcome
Timeframe: adolescents' salivary samples will be collected at five time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)Population: Only 80 adolescents went through the peer rejection task and 6 adolescents did not provide any salivary samples. A few adolescent participants' salivary C-reactive protein data were missing because some of their saliva samples did not provide sufficient measures.
adolescents' salivary samples will be collected, frozen, and assayed for inflammatory biomarker of C-reactive protein
Outcome measures
| Measure |
Stress Inducing Task
n=74 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejection
C-reactive protein 5 minutes before the task
|
804.28 pg/ml
Standard Deviation 1078.58
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|
Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejection
C-reactive protein 5 minutes after the task
|
571.01 pg/ml
Standard Deviation 1060.95
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|
Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejection
C-reactive protein 15 minutes after the task
|
483.45 pg/ml
Standard Deviation 824.71
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|
Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejection
C-reactive protein 30 minutes after the task
|
562.31 pg/ml
Standard Deviation 982.96
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Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejection
C-reactive protein 45 minutes after the task
|
567.40 pg/ml
Standard Deviation 1273.51
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PRIMARY outcome
Timeframe: immediately after the 5-minute peer rejection task endsPopulation: only 80 adolescents went through the peer rejection task and completed the questionnaire.
participants will complete the questionnaire, Attribution About The Peer Rejection (AATPR) to rate the likelihood of various reasons for the experience of peer rejection using a 7-point scale. The higher total score for the 4 racial reasons (possible range: 4-28) indicates the higher tendency of making racial attribution about the peer rejection.
Outcome measures
| Measure |
Stress Inducing Task
n=80 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Attribution About the Peer Rejection for Peer Rejection
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12.71 score on a scale
Standard Deviation 4.47
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PRIMARY outcome
Timeframe: immediately after the 5-minute peer rejection task endsPopulation: Only 80 adolescents went through the peer rejection task and reported emotional experience.
adolescents will complete the questionnaire, Emotions In The Peer Rejection (EITPR) to rate the emotional experiences in the peer rejection task using a 7-point scale. The higher total score for 5 sets of emotion terms (possible range: 5-35) indicates the higher levels of negative emotions in the peer rejection task.
Outcome measures
| Measure |
Stress Inducing Task
n=80 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Emotional Experience for Peer Rejection
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14.20 units on a scale
Standard Deviation 5.08
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PRIMARY outcome
Timeframe: baseline (5 minutes before to right before the task), during (start to end of the task), first post-task (right after to 15 minutes after) and second post-task (15 to 45 minutes after) the peer rejection taskPopulation: Only 80 adolescents went through the peer rejection task and had their skin conductance monitored. A few adolescents had missing values due to operational or equipment errors.
adolescents' skin conductance will be continuously monitored for the peer rejection task.
Outcome measures
| Measure |
Stress Inducing Task
n=80 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Skin Conductance Activity for Peer Rejection
skin conductance during the task
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10.12 µs
Standard Deviation 8.58
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Change in Skin Conductance Activity for Peer Rejection
first post-task skin conductance
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10.84 µs
Standard Deviation 9.16
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Change in Skin Conductance Activity for Peer Rejection
second post-task skin conductance
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11.52 µs
Standard Deviation 9.72
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Change in Skin Conductance Activity for Peer Rejection
baseline skin conductance
|
6.38 µs
Standard Deviation 5.57
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PRIMARY outcome
Timeframe: baseline (5 minutes before to right before the task), during (start to the end of the task), first post-task (right after to 15 minutes after the task) and second post-task (15 to 45 minutes after the task)Population: Only 80 adolescents went through the peer rejection level and had their respiratory sinus arrhythmia monitored. There were a few missing values because of operational or procedural errors.
adolescents' electrocardiogram data that can be used to extract respiratory sinus arrhythmia, heart rate variability in synchrony with respiration, will be continuously monitored for the peer rejection task.
Outcome measures
| Measure |
Stress Inducing Task
n=80 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Change in Respiratory Sinus Arrhythmia for Peer Rejection
baseline respiratory sinus arrhythmia
|
6.97 milliseconds
Standard Deviation 1.22
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Change in Respiratory Sinus Arrhythmia for Peer Rejection
respiratory sinus arrhythmia during the task
|
7.27 milliseconds
Standard Deviation 1.14
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Change in Respiratory Sinus Arrhythmia for Peer Rejection
first post-task respiratory sinus arrhythmia
|
7.23 milliseconds
Standard Deviation 1.21
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Change in Respiratory Sinus Arrhythmia for Peer Rejection
second post-task respiratory sinus arrhythmia
|
7.55 milliseconds
Standard Deviation 1.21
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SECONDARY outcome
Timeframe: baseline (5 minutes before to right before the task), during (start to end of the task), and post-task (right after to 15 minutes after the task)Population: A total of 89 adolescents went through the impossible puzzle task and had their blood pressure monitored. There were a few missing values due to procedural and equipment error.
adolescents' systolic and diastolic blood pressure will be continuously monitored for the impossible puzzle task
Outcome measures
| Measure |
Stress Inducing Task
n=89 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
|
Change in Mean Arterial Pressure for Impossible Puzzle
baseline mean arterial pressure
|
76.00 mmHg
Standard Deviation 7.40
|
|
Change in Mean Arterial Pressure for Impossible Puzzle
during-task mean arterial pressure during the task
|
80.46 mmHg
Standard Deviation 8.88
|
|
Change in Mean Arterial Pressure for Impossible Puzzle
post-task mean arterial pressure
|
77.26 mmHg
Standard Deviation 7.63
|
SECONDARY outcome
Timeframe: immediately after the 5-minute impossible puzzle task endsPopulation: A total of 89 adolescents went through the impossible puzzle task and provided emotional ratings.
adolescents will complete the questionnaire, Emotions In The Impossible Puzzle (EITIP) to rate the emotional experiences in the impossible puzzle task using a 7-point scale. The higher total score for 5 sets of emotion terms (possible range: 5-35) indicates the higher levels of negative emotions in the impossible puzzle task
Outcome measures
| Measure |
Stress Inducing Task
n=89 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
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Emotional Experience for Impossible Puzzle
|
16.27 units on a scale
Standard Error 3.05
|
SECONDARY outcome
Timeframe: immediately after the 5-minute impossible puzzle task endsPopulation: A total of 89 adolescents went through the impossible puzzle task. One adolescent did not provide rating of the attributions.
adolescents will complete the questionnaire, Attribution About The Impossible Puzzle (AATIP) to rate the likelihood of various reasons for the experience of not being able to complete the puzzle using a 7-point scale. The higher total score for the 3 intrinsic reasons (possible range: 3-21) indicates the higher tendency of making intrinsic attribution about performance in the impossible puzzle task.
Outcome measures
| Measure |
Stress Inducing Task
n=88 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
|
Attribution for Impossible Puzzle
|
10.62 units on a scale
Standard Deviation 4.34
|
SECONDARY outcome
Timeframe: baseline (5 minutes before to right before the task), during (start to end of the task), and post (right after to 15 minutes after the task)Population: A total of 89 adolescents went through the impossible puzzle task and had their skin conductance level monitored. There were a few missing data due to operational or equipment error.
adolescents' skin conductance will be continuously monitored for the impossible puzzle task
Outcome measures
| Measure |
Stress Inducing Task
n=89 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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|---|---|
|
Change in Skin Conductance for Impossible Puzzle
baseline skin conductance
|
6.55 µs
Standard Deviation 5.21
|
|
Change in Skin Conductance for Impossible Puzzle
skin conductance during the task
|
8.83 µs
Standard Deviation 6.86
|
|
Change in Skin Conductance for Impossible Puzzle
post-task skin conductance
|
10.21 µs
Standard Deviation 8.24
|
SECONDARY outcome
Timeframe: baseline (5 minutes before to right before the task), during (start to end of the task), and post-task (right after to 15 minutes after the task)Population: A total of 89 adolescents went through the impossible puzzle task and had heart rate monitored. There were a few missing data due to operational or equipment error.
adolescents' electrocardiogram data that can be used to extract respiratory sinus arrhythmia, heart rate variability in synchrony with respiration, will be continuously monitored for the impossible puzzle task
Outcome measures
| Measure |
Stress Inducing Task
n=89 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
|
|---|---|
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Change in Respiratory Sinus Arrhythmia for Impossible Puzzle
baseline respiratory sinus arrhythmia
|
7.41 milliseconds
Standard Deviation 1.22
|
|
Change in Respiratory Sinus Arrhythmia for Impossible Puzzle
respiratory sinus arrhythmia during the task
|
6.81 milliseconds
Standard Deviation 1.15
|
|
Change in Respiratory Sinus Arrhythmia for Impossible Puzzle
post-task respiratory sinus arrhythmia
|
7.17 milliseconds
Standard Deviation 1.27
|
SECONDARY outcome
Timeframe: baseline (2.5 minute of discussion about last night's dinner before the conversation about peer rejection), during (5 minutes about the peer rejection task)Population: A total of 68 adolescents and their parents went through the conversation about the peer rejection task with only adolescents' blood pressure monitored. There were a few missing data due to operational or equipment error.
adolescents' diastolic and systolic blood pressure will be continuously monitored.
Outcome measures
| Measure |
Stress Inducing Task
n=68 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
|
|---|---|
|
Change in Mean Arterial Pressure for Conversation About Peer Rejection
Baseline of conversation about dinner
|
80.06 mmHg
Standard Deviation 9.07
|
|
Change in Mean Arterial Pressure for Conversation About Peer Rejection
During the conversation about peer rejection task
|
84.06 mmHg
Standard Deviation 96.98
|
SECONDARY outcome
Timeframe: baseline (2.5 minutes about last night's dinner before the conversation about peer rejection), during (5 minutes discussion about peer rejection)Population: A total of 68 adolescents and their parents went through the conversation about the peer rejection task with only adolescents' skin conductance level being monitored. There were a few missing data due to operational or equipment error.
adolescents' skin conductance level will be continuously monitored before and during the conversation about peer rejection.
Outcome measures
| Measure |
Stress Inducing Task
n=68 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
|
|---|---|
|
Change in Skin Conductance Activity in Conversation About Peer Rejection
baseline of conversation about dinner
|
11.12 µs
Standard Deviation 9.89
|
|
Change in Skin Conductance Activity in Conversation About Peer Rejection
during the task of conversation about the peer rejection task
|
10.96 µs
Standard Deviation 9.56
|
SECONDARY outcome
Timeframe: Baseline (2.5 minutes of discussion on last night's dinner before the conversation about peer rejection), during the task (5 minutes of discussion on peer rejection task)Population: A total of 68 adolescents and their parents went through the conversation about the peer rejection task with only adolescents' respiratory sinus arrhythmia data monitored. There were a few missing data due to operational or equipment error.
adolescents' electrocardiogram data that can be used to extract respiratory sinus arrhythmia, heart rate variability in synchrony with respiration, will be continuously monitored for the conversation about peer rejection
Outcome measures
| Measure |
Stress Inducing Task
n=68 Participants
Adolescents will complete an adapted peer rejection task on the computer to elicit the experience of subtle racial discrimination from White peers, as well as an impossible puzzle task to elicit cognitive stress.
peer rejection task and impossible puzzle task: Peer rejection task: Adolescents will be informed that two peers will take turns to choose who they will chat with for different topics. Participants will not be chosen by virtual White peers 75% of the time. In reality, White peers are computerized avatars and whether or not adolescents are chosen by those peers is programmed with PsychoPy software.
Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.
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Change in Respiratory Sinus Arrhythmia for Conversation About Peer Rejection
Baseline of conversation about dinner
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7.19 milliseconds
Standard Deviation 1.03
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Change in Respiratory Sinus Arrhythmia for Conversation About Peer Rejection
During the task of conversation about the peer rejection task
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7.29 milliseconds
Standard Deviation 1.14
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Adverse Events
Stress Inducing and Conversation Task
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
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place