This study evaluates the effects of mindfulness on physiological stress mechanisms implicated in externalizing behaviors and symptoms of affective and traumatic stress among urban adolescents. Program effects on stress physiology will be evaluated using pre- and post-tests of heart rate variability (HRV) during a stress task. Emotional and behavioral outcomes will be measured using student and teacher ratings.
Low-income urban adolescents experience high rates of adversity and trauma exposure, increasing their risk for stress-related problems, including externalizing behaviors and affective and traumatic stress symptoms. These outcomes are associated with dysregulated physiological responses to stress, both in the laboratory and real-world contexts. The neuroplasticity that typifies adolescence heightens vulnerability to stress effects on various brain and body systems. On the other hand, the same neurodevelopmental features also suggest pathways for overcoming and altering stymied trajectories through targeted interventions that leverage the brain's plasticity. Thus, adolescence affords a window of opportunity to reinforce parasympathetic modulation of stress responses, enhancing capacities for emotion regulation and, in effect, protecting against the development of behavioral and affective problems. There is growing empirical support for the ability of mindfulness-based programs to improve stress management in adults, leading to improved well-being, coping and prosocial behavior. Evidence suggests that mindfulness influences homeostatic systems that modulate neurophysiological responses to stress in the service of emotion regulation. Indeed, neuroimaging studies in adults have established that mindfulness measurably improves brain function, demonstrating the alterability of these mechanisms. No such data have been collected for youth, nor have the psychophysiological mechanisms underlying mindfulness program effects for disadvantaged urban youth been rigorously evaluated. The proposed research thus has potential to substantively advance understanding of mindfulness mechanisms of effects and also to facilitate optimization of mindfulness programming so that it has maximum benefits for urban youth. This study evaluates the effects of mindfulness on physiological stress mechanisms implicated in externalizing behaviors and symptoms of affective and traumatic stress among urban adolescents. Program effects on stress physiology will be evaluated using pre- and post-tests of heart rate variability (HRV) during a stress task. Emotional and behavioral outcomes will be measured using student and teacher ratings.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
203
Mindfulness program for adolescents
Health education program for adolescents
Baltimore City Public Schools
Baltimore, Maryland, United States
Heart rate variability (HRV)
HRV is a biomarker of neural regulation of the autonomic nervous system (ANS) and reflects activity in the parasympathetic (PNS) division. HRV is perturbed by stress and can be altered long-term when adversity is prevalent. As such, it has been associated with symptoms of affective and traumatic stress disorders and externalizing behaviors. We will non-invasively monitor the reactivity of HRV using an earlobe sensor to index the PNS. Participants will complete the Trier Social Stress Task (TSST), which is a standard protocol for inducing moderate psychosocial stress in laboratory settings, and has been widely used with preadolescents and adolescents (Gunnar, Wewerka, Frenn, Long, \& Griggs, 2009; Kirschbaum, Pirke, \& Hellhammer, 1993). The protocol involves preparing and delivering a speech by the participant in the presence of an adult experimenter and while being videotaped. The trained research assistant is instructed to be as non-responsive as possible during the task.
Time frame: 25 minutes
Child Behavior Checklist:
CBCL/4-18 has strong internal consistency and reliability. Considered the standard in field of child psychopathology.
Time frame: 10 minutes
Strengths and Difficulties Questionnaire
A 31-item teacher-rated measure assessing aspects of students' social-emotional functioning. We will administer scales for dysregulation and social-emotional competence (13 items total).
Time frame: 8 minutes
Patient-Reported Outcomes Measurement Information System
PROMIS is well established and widely used. Includes Depression, Anxiety, Emotional and Behavioral Dyscontrol, Sleep Disturbance, Well Being and Cognitive Function Scales for pediatric samples, from 8-17.
Time frame: 6 minutes
Child PTSD Symptom Scale
The CPSS (Foa et al., 2001), which is a 25-item measure of trauma symptoms that has been shown to have good reliability and validity in Baltimore City youth, and has been used in prior studies conducted in Baltimore City public schools.
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Time frame: 3 minutes
Emotion Regulation Questionnaire
ERQ has 10 items rated on 7-point scale tap individual differences in habitual use of 2 emotion regulation strategies: cognitive reappraisal \& expressive suppression (α = .69)
Time frame: 3 minutes
Background Questionnaire
Gender, household income, ethnicity/race, mental health treatment received, coping, diet, sleep patterns, etc.
Time frame: 3 minutes
Youth Risk Behavior Survey
The YRBS (CDC 2015) includes substance use items, which includes 4 items measuring lifetime use of alcohol, tobacco, and marijuana.
Time frame: 10 minutes
Brief COPE
Brief COPE (Carver, 1997), a 28-item measure of various coping skills, including both adaptive and maladaptive coping strategies.
Time frame: 5 minutes
Perceived Stress Scale
Perceived Stress Scale: 12 items modified from NIH toolbox (e.g. felt nervous and stressed; able to control irritations). α = 0.89
Time frame: 3 minutes
Child and Adolescent Mindfulness Measure
Child and Adolescent Mindfulness Measure (CAMM) (Greco et al., 2011), a brief (10-item) measure of mindfulness that has been found to be reliable and valid in a sample of Baltimore City adolescents. This measure would be given at baseline and post-program, as well as the midpoint of the intervention.
Time frame: 3 minutes
Adverse Childhood Experiences Checklist
Adverse Childhood Experiences Checklist (ACEs) (Felitti et al., 1998), a brief (8-item) checklist of trauma exposures adapted from a longer version to exclude items that would require reporting.
Time frame: 3 minutes