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Racial Discrimination and Stress Response

Racial Discrimination and Dysregulated Stress Response: Risk/Protective Factors

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05820659
Enrollment
178
Registered
2023-04-20
Start date
2023-06-29
Completion date
2024-11-17
Last updated
2026-08-17

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

Conditions

Stress Reaction; Acute

Keywords

cardiovascular reactivity, hypothalamic-pituitary-adrenal axis, inflammatory mediator, subtle racism

Brief summary

The goal of this study is to learn about whether ethnic minority adolescents' racial discrimination experience is related to dysregulated biological responses to subtle racism, and how the relationship may be attenuated or exacerbated by a set of social and cognitive factors. The main questions it aims to answer are: * to reveal the relationship between racial discrimination experiences and ethnic minority adolescents' stress response to subtle racism * to test parental ethnic-racial socialization, children's attribution to subtle racism and their racial identity as potential risk and protective factors.

Detailed description

Racial discrimination experiences constitute significant risks for ethnic minority youth's physical and mental health problems. One explanation poses that chronic stress can lead to altered, dysregulated stress responses, which can make individuals susceptible to health problems. Currently, there is no experimental study that comprehensively measure ethnic minority youth's stress response to subtle racism, or investigate the contributing roles of racial discrimination experience and possible risk and protective factors. A community sample of 9-14-year-old ethnic minority adolescents (40 Latino American, 40 Black/African American) will be recruited. The study employs an adapted peer rejection task which has been widely used with youth, and carefully designed to elicit the experience of subtle racial discrimination from White peers. Adolescents' cardiovascular activity and saliva samples will be taken at multiple time points before, during, and after the peer rejection task, tapping on response involving hypothalamic-pituitary-adrenal (HPA) axis, autonomic nervous system (ANS), and inflammatory mediator (IM). Adolescents will report their racial discrimination experience, make attribution about the peer rejection experience, report emotional experience, and rate their racial identity. Adolescents will complete an impossible puzzle task to elicit cognitive stress, during which they will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided. Their cardiovascular activity, attribution, and emotional experience in response to the impossible puzzle task will be measured. Parents will complete a questionnaire to report their ethnic-racial socialization practices. Adolescents will rate on their ethnic-racial identity via a questionnaire. The goals of this proposal are: 1) Reveal the relationship between racial discrimination experiences and ethnic minority adolescents' stress response to subtle racism as well as to cognitive stress; and 2) Test parental ethnic-racial socialization, children's attribution to subtle racism and their racial identity as potential risk and protective factors.

Interventions

BEHAVIORALpeer rejection task, conversation about peer rejection, 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. Conversation about peer rejection: parents and adolescents will discuss the peer rejection task guided with suggested question prompts. Impossible puzzle task: Adolescents will be asked to fit all puzzle pieces into a wooden frame with a wrong piece provided.

Sponsors

Western Kentucky University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
9 Years to 99 Years
Healthy volunteers
Yes

Inclusion criteria

* 9-14 years old * identified as Latino American or Black/African American * Living in Warren county of Kentucky * with parent consent * parents of adolescent participants

Exclusion criteria

Adolescents will not participate in the peer rejection task when they report to have: * frequent experiences of peer victimization * frequent experiences of racial discrimination * severe depression * severe social anxiety disorder * severe generalized anxiety disorder * limited English reading competence to understand the task instruction

Design outcomes

Primary

MeasureTime frameDescription
Change in Mean Arterial Pressure for Peer Rejectionbaseline (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)adolescents' diastolic and systolic blood pressure will be continuously monitored.
Change in Stress Hormones for Peer Rejectionfive time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)adolescents' salivary samples will be collected, frozen, and assayed for cortisol.
Change in Inflammatory Biomarker of Interleukin 6 for Peer Rejectionfive time points (right before, 5 minutes after, 15 minutes after, 30 minutes after, and 45 minutes after the peer rejection task)adolescents' salivary samples will be collected, frozen, and assayed for inflammatory biomarker of Interleukin-6
Change in Inflammatory Biomarker of C-reactive Protein for Peer Rejectionadolescents' 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)adolescents' salivary samples will be collected, frozen, and assayed for inflammatory biomarker of C-reactive protein
Attribution About the Peer Rejection for Peer Rejectionimmediately after the 5-minute peer rejection task endsparticipants 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.
Emotional Experience for Peer Rejectionimmediately after the 5-minute peer rejection task endsadolescents 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.
Change in Skin Conductance Activity for Peer Rejectionbaseline (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 taskadolescents' skin conductance will be continuously monitored for the peer rejection task.
Change in Respiratory Sinus Arrhythmia for Peer Rejectionbaseline (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)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.

Secondary

MeasureTime frameDescription
Change in Mean Arterial Pressure for Impossible Puzzlebaseline (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)adolescents' systolic and diastolic blood pressure will be continuously monitored for the impossible puzzle task
Emotional Experience for Impossible Puzzleimmediately after the 5-minute impossible puzzle task endsadolescents 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
Attribution for Impossible Puzzleimmediately after the 5-minute impossible puzzle task endsadolescents 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.
Change in Skin Conductance for Impossible Puzzlebaseline (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)adolescents' skin conductance will be continuously monitored for the impossible puzzle task
Change in Respiratory Sinus Arrhythmia for Impossible Puzzlebaseline (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)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
Change in Mean Arterial Pressure for Conversation About Peer Rejectionbaseline (2.5 minute of discussion about last night's dinner before the conversation about peer rejection), during (5 minutes about the peer rejection task)adolescents' diastolic and systolic blood pressure will be continuously monitored.
Change in Skin Conductance Activity in Conversation About Peer Rejectionbaseline (2.5 minutes about last night's dinner before the conversation about peer rejection), during (5 minutes discussion about peer rejection)adolescents' skin conductance level will be continuously monitored before and during the conversation about peer rejection.
Change in Respiratory Sinus Arrhythmia for Conversation About Peer RejectionBaseline (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)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

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORQingfang Song, Ph.D

Western Kentucky University

Baseline characteristics

Characteristic
Age, Continuous
Adolescents
12.28 years
STANDARD_DEVIATION 1.59
Age, Continuous
Parents
39.79 years
STANDARD_DEVIATION 6.82
Body Mass Index (BMI)
Adolescents
21.50 kg/m^2
STANDARD_DEVIATION 5.87
Ethnicity (NIH/OMB)
Adolescents
Hispanic or Latino
41 Participants
Ethnicity (NIH/OMB)
Adolescents
Not Hispanic or Latino
48 Participants
Ethnicity (NIH/OMB)
Adolescents
Unknown or Not Reported
0 Participants
Ethnicity (NIH/OMB)
Parents
Hispanic or Latino
41 Participants
Ethnicity (NIH/OMB)
Parents
Not Hispanic or Latino
48 Participants
Ethnicity (NIH/OMB)
Parents
Unknown or Not Reported
0 Participants
Region of Enrollment
United States
178 participants
Sex: Female, Male
Adolescents
Female
48 Participants
Sex: Female, Male
Adolescents
Male
41 Participants
Sex: Female, Male
Parents
Female
82 Participants
Sex: Female, Male
Parents
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 178
other
Total, other adverse events
0 / 178
serious
Total, serious adverse events
0 / 178

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 18, 2026