Observed parent-adolescent coalitions and family hostilities during family discussions: Associations with marital aggression.

This study investigated bidirectional associations between observed parent-youth coalitions-wherein one parent and a child align themselves against the other parent-and family hostilities as they evolved in real-time during triadic family conflict discussions. Participants were 102 families with an adolescent child (50% girls, Mage  = 15.3 years, SD = 0.8). Using time-lagged, multilevel models, we tested immediate, temporal influences from hostility (within marital and mother-youth and father-youth relationships) to parent-youth coalitions and vice versa. Guided by sensitization theories, we also investigated whether a history of marital aggression moderated these links. Results indicated multiple concurrent links supporting the interconnectedness of cross generational coalitions and angry, critical exchanges within multiple family relationships. Moreover, time-linked effects demonstrated that hostility within both the marital and parent-adolescent domains preceded subsequent coalitions, and also that coalitions preceded hostility, particularly in the parent-adolescent domain. Findings further demonstrated that marital aggression moderates temporal associations between fathers' marital hostility and father-youth coalitions. These patterns highlight the dynamic links between hostilities and coalitions, how such patterns spill over across family subsystems, and how these two insidious influences in parents' interactions with their adolescent youth may mutually reinforce each other. This study informs intervention efforts by identifying patterns and sequences of family hostilities surrounding parent-youth coalitions during adolescence.

En este estudio se investigaron las asociaciones bidireccionales entre las alianzas observadas entre padres y adolescentes -en las cuales un padre y un hijo se alinean contra el otro padre- y las hostilidades familiares a medida que se desarrollaban en tiempo real durante discusiones triádicas por conflictos familiares. Los participantes fueron 102 familias con un hijo adolescente (el 50% niñas, edad promedio = 15.3 años, desviación típica = 0.8). Utilizando modelos multinivel con tiempo de retardo, evaluamos las influencias inmediatas y temporales de la hostilidad (dentro de las relaciones conyugales y de las relaciones entre madre y adolescente y padre y adolescente) en las alianzas entre padres y adolescentes y viceversa. Guiados por las teorías de sensibilización, también investigamos si los antecedentes de agresión conyugal moderaron estas asociaciones. Los resultados indicaron varias asociaciones simultáneas que respaldaron la interconexión de las alianzas intergeneracionales y los intercambios agresivos y críticos dentro de las relaciones de varias familias. Además, los efectos asociados con el tiempo demostraron que la hostilidad dentro del área conyugal y de padres y adolescentes precedió a alianzas posteriores, y también que las alianzas precedieron a la hostilidad, particularmente en el área de padres y adolescentes. Los resultados también demostraron que la agresión conyugal modera las asociaciones temporales entre la hostilidad conyugal de los padres y las alianzas entre los padres y los jóvenes. Estos patrones destacan las asociaciones dinámicas entre las hostilidades y las alianzas, las maneras en la que dichos patrones se desbordan entre los subsistemas familiares, y cómo estas dos influencias insidiosas en las interacciones de los padres con sus hijos adolescentes pueden reforzarse mutuamente. Este estudio sirve como base para los esfuerzos de intervención, ya que identifica los patrones y las secuencias de las hostilidades familiares que rodean a las alianzas entre los padres y los adolescentes durante la adolescencia.

A Systematic Review of Respiratory Sinus Arrhythmia in Romantic Relationships.

Respiratory sinus arrhythmia (RSA), an index of the parasympathetic nervous system, has recently gained attention as a physiological component of regulatory processes, social connectedness, and health. Within the context of romantic relationships, studies have operationalized and conceptualized RSA in disparate ways, obscuring a clear pattern of findings. This systematic review synthesizes the rapidly developing literature and clarifies the role of RSA in romantic relationships. We evaluate support for three conceptual hypotheses: (1) resting baseline RSA is associated with better quality relationships; (2) phasic RSA is reflective of changes in threat and connection during couple interactions; and (3) physiological linkage in RSA between romantic partners relates to positive or negative relationship functioning depending on the nature of the linkage (e.g., in-phase vs. antiphase). We identified 26 empirical studies that tested associations between RSA and an index of romantic relationships (i.e., relationship satisfaction). Our findings show that higher RSA is not uniformly "good" for relationships. Higher resting baseline RSA was contemporaneously associated with better quality relationships, yet higher baseline RSA was also unexpectedly associated with relationship violence. Short-term decreases in RSA were found during relationship conflict, though the opposite-phasic increases in RSA during positive romantic partner interactions-was not found due to mixed empirical support. As expected, evidence for RSA linkage was found, though the connection between linkage and relationship functioning depends on the context in which it was measured. We discuss methodological limitations and directions for future research.

La arritmia sinusal respiratoria (ASR), un índice del sistema nervioso parasimpático, ha sido objeto de atención recientemente como componente fisiológico de los procesos reguladores, la conexión social y la salud. Dentro del contexto de las relaciones amorosas, los estudios han operacionalizado y conceptualizado la ASR de diversas maneras, ocultando un patrón claro de signos. Este análisis sistemático sintetiza la bibliografía que se está desarrollando rápidamente y aclara el papel que desempeña la ASR en las relaciones amorosas. Evaluamos el respaldo de tres hipótesis conceptuales: (1) una ASR de reposo en el momento basal está asociada con relaciones de mejor calidad; (2) la ASR refleja cambios en la amenaza y la conexión durante las interacciones de la pareja; y (3) la asociación fisiológica en la ASR entre los integrantes de la pareja se relaciona con el funcionamiento positivo o negativo de la relación según la índole de la asociación (p. ej.: en fase frente a contrafase). Identificamos 26 estudios empíricos que evaluaron las asociaciones entre la ASR y un índice de las relaciones amorosas (p. ej.: la satisfacción con la relación). Nuestros resultados indican que una ASR más alta no es uniformemente "buena" para las relaciones. Una ASR de reposo más alta en el momento basal estuvo asociada contemporáneamente con relaciones de mejor calidad, sin embargo, una ASR más alta en el momento basal también estuvo asociada inesperadamente con la violencia de pareja. Se encontraron disminuciones de la ASR a corto plazo durante el conflicto en las relaciones, aunque no se encontró lo opuesto -aumentos fásicos en la ASR durante las interacciones positivas de los integrantes de la pareja- debido a un respaldo empírico ambivalente. Como se esperaba, se encontraron indicios de una asociación de la ASR, aunque la conexión entre la asociación y el funcionamiento de la relación depende del contexto en el cual se midió. Comentamos las limitaciones metodológicas y damos indicaciones para investigaciones futuras.

A Matter of the Heart: Daytime Relationship Functioning and Overnight Heart Rate in Young Dating Couples.

BACKGROUND: Although past longitudinal research demonstrates that romantic partners affect one another's health outcomes, considerably less is known about how romantic experiences "get under the skin" in everyday life. PURPOSE: The current study investigated whether young couples' naturally occurring feelings of closeness to and annoyance with each other during waking hours were associated with their overnight cardiovascular activity. METHODS: Participants were 63 heterosexual young adult dating couples (Mage = 23.07). Using ecological momentary assessments, couples reported their hourly feelings of closeness to and annoyance with their partners across 1 day; subsequent overnight heart rate was captured through wearable electrocardiogram biosensors. Actor-partner interdependence models tested whether individuals' overnight heart rate varied as a function of (a) their own daytime feelings of closeness and annoyance (actor effects) and (b) their partner's daytime feelings of closeness and annoyance (partner effects) while controlling for daytime heart rate. RESULTS: Although young adults' feelings of romantic closeness and annoyance were unrelated to their own overnight heart rate (i.e., no actor effects), gender-specific partner effects emerged. Young men's nocturnal heart rate was uniquely predicted by their female partner's daytime relationship feelings. When women felt closer to their partners during the day, men exhibited lower overnight heart rate. When women felt more annoyed with their partners during the day, men exhibited heightened overnight heart rate. CONCLUSIONS: The findings illustrate gender-specific links between couple functioning and physiological arousal in the everyday lives of young dating couples, implicating physiological sensitivity to partner experiences as one potential pathway through which relationships affect health.

Investigating the momentary association between maternal support and children's fruit and vegetable consumption using ecological momentary assessment.

Despite compelling evidence that fruit and vegetable (F/V) consumption can reduce the risk of obesity and chronic disease, most children fail to meet the daily recommendations for dietary consumption. Theoretical models and empirical findings suggest that parents play a key role in guiding children's overall dietary behaviors. To extend previous findings, the current study utilized ecological momentary assessment (EMA) on smartphones to assess the within-subject and between-subject effects of maternal support (i.e., encouragement, preparation) of F/V on their child's F/V consumption. Mother-child dyads (n = 191) completed six semi-annual 7-day waves of EMA surveys. EMA assessed mothers' past 2-h support for F/V and children's F/V consumption. At the within-subject level, greater maternal encouragement for F/Vs (OR = 2.41) and maternal preparation of F/Vs (OR = 1.43) than usual were associated with increased odds of their child eating F/V during the same 2-h window. At the between-subject level, greater maternal preparation of F/V (OR = 5.99), compared to other mothers, was associated with increased odds of their child eating F/V. Children with lower BMI (vs. higher BMI) were more likely to consume F/Vs when their mothers encouraged them to eat F/V (OR = 0.74). These findings suggest that maternal support may have a strong and immediate effect on children's F/V consumption. Theoretical models on behavior change should consider how explanatory factors, such as parental support, may vary at the momentary level. Boosting maternal support at the momentary level may be a critical component of future mobile-based interventions to address childhood obesity.

Within-Subject Effects of Stress on Weight-Related Parenting Practices in Mothers: An Ecological Momentary Assessment Study.

BACKGROUND: Stress may compromise parenting practices related to children's dietary intake, physical activity, and sedentary behavior. PURPOSE: The current study used Ecological Momentary Assessment (EMA) to examine microtemporal sequences underlying maternal stress and subsequent weight-related parenting practices. METHODS: Mothers (n = 199) of children aged 8-12 years participated in two separate 7-day waves of EMA with up to eight randomly prompted surveys per day during children's nonschool time. EMA items assessed stress and weight-related parenting practices. RESULTS: When mothers reported experiencing greater stress than usual, they subsequently engaged in less physical activity parenting (e.g., encouraging physical activity; p < .05) and more sedentary screen behavior parenting (e.g., limiting TV/video games; p < .05) over the next 2 hr. CONCLUSIONS: Addressing within-day variations in maternal stress may be an important component of parent-focused child obesity prevention interventions.

Within-Subject Associations of Maternal Physical Activity Parenting Practices on Children's Objectively Measured Moderate-to-Vigorous Physical Activity.

OBJECTIVE: Longitudinal within-subject (WS) associations of mothers' momentary assessed physical activity (PA) parenting practices were examined with children's objectively measured PA during the same 2-hr time frame. METHOD: Mother-child dyads (n = 189) completed five ecological momentary assessment (EMA) measurement bursts over 3 years. During each 7-day burst, mothers EMA-reported their past 2 hr PA parenting practices (i.e., encouraging their child to be physically active, taking their child someplace to be physically active), and children (Mage=9.6 years, SD = 0.9) wore an accelerometer to measure moderate-to-vigorous PA (MVPA). Two-part multilevel models were used, with zero portions representing not meeting MVPA and positive portions representing any MVPA, controlling for demographic covariates. Cross-level interaction terms of child sex and age with parenting were created to test moderation effects. RESULTS: When mothers reported taking their child to be physically active, children were more likely to get some MVPA (b = -0.56, p < .001). When mothers reported taking their child to be physically active more, children had higher levels of MVPA (b = 0.24, p < .001). When mothers reported encouraging their child to be physically active, children were less likely to get any MVPA (b = 0.27, p < .05). However, when mothers reported encouraging their child to be physically active more, children had higher levels of MVPA (b = 0.29, p < .001). These effects were not moderated by child sex or age. CONCLUSIONS: WS variations of mothers' support for PA across the day were associated with changes in children's MVPA. Future research should consider promoting mothers' provision of support for increasing children's PA.

Dual Versus Single Parental Households and Differences in Maternal Mental Health and Child's Overweight/Obesity.

Objectives Mothers report higher levels of psychological stress than fathers. s. Psychological stress is posited to influence parenting practices that could increase children's obesity risk. However, previous studies have not investigated several aspects of maternal mental health and the moderating role of household structure on children's obesity risk. The objective was to investigate associations of maternal mental health with child obesity risk, and whether these associations differed by household structure (single-parent vs. dual parent/multigenerational). Methods Mothers and their 8-12 year old children (N = 175 dyads) completed baseline questionnaires on mothers' mental health and child anthropometrics. Separate logistic regressions assessed associations of standardized maternal mental health indicators with the odds of child overweight/obesity, controlling for child age, and women's BMI, age, education, employment status, and annual income. Household structure was investigated as a moderator of these relationships.Results There were no statistically significant relationships between maternal mental health characteristics and odds of child overweight/obesity. Among single mothers only, greater anxiety was associated with higher risk of child overweight/obesity [OR (95% CI) = 3.67 (1.27-10.62); p = 0.0163]; and greater life satisfaction was marginally associated with lower risk of child overweight/obesity [OR (95% CI) = 0.44 (0.19-1.01); p = 0.0522]. Mothers' life satisfaction may lower risk for their children's overweight/obesity, whereas higher anxiety may increase this risk, particularly among children living in single-mother households. Conclusions for Practice Future interventions could increase resources for single mothers to buffer the effects of stress and lower pediatric obesity risk.

Day-to-day friends' victimization, aggression perpetration, and morning cortisol activity in late adolescents.

This study investigates bidirectional associations between adolescents' daily experiences of victimization and aggression perpetration within friendships. We investigated (a) across-day associations between victimization and aggression perpetration; (b) morning cortisol activity as a moderator of cross-day victimization and aggression links; and (c) potential sex differences in these patterns. For 4 consecutive days, 99 adolescents (Mage  = 18.06, SD = 1.09, 46 females) reported whether they were victimized by or aggressive toward their friends. On three of these days, adolescents provided three morning saliva samples. Multilevel path analyses showed that across days, victimization and aggression were bidirectionally linked, but only for male adolescents. Additionally, for male adolescents, morning cortisol output (but not morning cortisol increase) moderated the association between victimization and next-day aggression; victimization predicted greater next-day aggression for boys with low, but not high, morning cortisol output. Findings implicate a physiological factor that may modify daily links between victimization and aggression in male adolescent friendships.

Deviant Peers and Adolescent Risky Behaviors: The Protective Effect of Nonverbal Display of Parental Warmth.

This study examines whether nonverbal displays of parents' warmth during an in-lab conflict discussion mitigate the links between affiliation with deviant peers and risky behaviors. A sample of 107 youth and their parents participated in a study spanning from mid-adolescence (T1) to late adolescence (T2). At T1, family members discussed a contentious issue, which was coded for parents' nonverbal warmth. At T1 and T2, youth reported on their friends' and their own risky behaviors. Fathers' warmth moderated each prospective association between deviant peers and risky behaviors. Mothers' warmth did not emerge as a significant moderator. Girls, in particular, benefitted from fathers' warmth as a buffer in the trajectory from T1 risky behaviors to T2 risky behaviors and deviant peers.

Community violence exposure in early adolescence: Longitudinal associations with hippocampal and amygdala volume and resting state connectivity.

Community violence exposure is a common stressor, known to compromise youth cognitive and emotional development. In a diverse, urban sample of 22 adolescents, participants reported on community violence exposure (witnessing a beating or illegal drug use, hearing gun shots, or other forms of community violence) in early adolescence (average age 12.99), and underwent a neuroimaging scan 3-5 years later (average age 16.92). Community violence exposure in early adolescence predicted smaller manually traced left and right hippocampal and amygdala volumes in a model controlling for age, gender, and concurrent community violence exposure, measured in late adolescence. Community violence continued to predict hippocampus (but not amygdala) volumes after we also controlled for family aggression exposure in early adolescence. Community violence exposure was also associated with stronger resting state connectivity between the right hippocampus (using the manually traced structure as a seed region) and bilateral frontotemporal regions including the superior temporal gyrus and insula. These resting state connectivity results held after controlling for concurrent community violence exposure, SES, and family aggression. Although this is the first study focusing on community violence in conjunction with brain structure and function, these results dovetail with other research linking childhood adversity with smaller subcortical volumes in adolescence and adulthood, and with altered frontolimbic resting state connectivity. Our findings suggest that even community-level exposure to neighborhood violence can have detectable neural correlates in adolescents.

Adverse childhood experiences, daily worries, and positive thoughts: A daily diary multi-wave study.

OBJECTIVE: To examine adverse childhood experiences (ACEs) as a prospective predictor of the day-to-day associations between worries and positive thinking among late adolescents. METHOD: Cumulative ACEs were measured from parent and youth reports between the ages of 9.9 and 18.1. Late adolescents (N = 103) reported daily worries and positive thoughts across ten days. RESULTS: Adverse childhood experiences predicted higher and more variable levels of day-to-day worry. Increases in positive thinking on one day predicted less next-day worry for adolescents with low, but not high, ACE scores. CONCLUSIONS: Daily worry during late adolescence may be an important consequence of earlier exposure to ACEs. Early interventions focused on worry reduction and improved emotion regulation might mitigate worry among high-ACE youth.

Parenting styles, food-related parenting practices, and children's healthy eating: A mediation analysis to examine relationships between parenting and child diet.

Parents exert a strong influence on their children's diet. While authoritative parenting style is linked to healthier weight and dietary outcomes in children, and authoritarian and permissive parenting styles with unhealthy eating, little is known about the mechanisms that mediate these relationships. Feeding styles are often examined in relation to child diet, but they do not consider the social and physical environmental contexts in which dietary behaviors occur. Therefore, this study examined whether parenting styles (authoritative, authoritarian, and permissive) were associated with three specific food-related parenting practices - mealtime structural practices (e.g., eating meals as a family), parent modeling of healthy food, and household food rules and whether these parenting practices mediated the association between parenting styles and children's diet. Participants were 174 mother-child dyads. Mothers (68% married, 58% college graduates, Mage = 41 years [SD = 6.2]) reported on their parenting practices using validated scales and parenting style using the Parenting Styles and Dimensions Questionnaire. Children (52% female, Mage = 10 years [SD = 0.9]) completed two telephone-based 24-hour dietary recalls. Dietary outcomes included the Healthy Eating Index (HEI)-2010 score, and fruit and vegetables and added sugar intake. Using PROCESS, multiple mediation cross-sectional analyses with parallel mediators using 10,000 bootstraps were performed. Significant indirect effects were observed with mealtime structure and the relationships between authoritative parenting and HEI-2010 score (b = 0.045, p < .05, CI = [0.006, 0.126]), authoritarian parenting and HEI-2010 score (b = -0.055, p < .05, CI = [-0.167, -0.001]), and permissive parenting and HEI-2010 score (b = -0.093, p < .05, CI = [-0.265, -0.008]). Child diet quality is affected by mealtime structural practices. Further examination of the features by which mealtime structural practices serve as a mechanism for parents to support healthy eating among their children may improve children's diet quality.

Stepping Up, Sticking Together: Military Adolescents' Support of Their Civilian Parents and Concurrent Depression Symptoms.

The purposes of this study were to assess the ways adolescents in active-duty military families provide emotional and instrumental support to civilian mothers and to investigate the implications of such support for their own symptoms of depression. Eighty adolescents from active-duty military families provided self-report ratings of emotional and instrumental support rendered to their civilian mothers. Mother-adolescent dyads engaged in a 10-min discussion of military experiences, which was coded for adolescents' emotional validation of their mothers. Path analyses showed that adolescents who provided more instrumental support and showed more emotional validation reported fewer symptoms of depression. However, adolescents' instrumental support to the mother was not inversely associated with their depression symptoms when the mothers reported high depression symptoms. Recent military demands did not moderate associations between adolescent support and depression symptoms. In this, the first study to our knowledge assessing youth-to-parent support provision among military adolescents, results suggest that emotional validation and instrumental support given at will by adolescents to their civilian mothers are associated with lower levels of adolescent depressive symptoms. Results also underscore the impact of maternal depression on family processes and emphasize the importance of careful assessment of support processes within military families.

Adolescents' Daily Worries and Risky Behaviors: The Buffering Role of Support Seeking.

With worries and risky behaviors becoming more prominent in adolescence, this study investigated bidirectional temporal connections between these two important adolescent concerns, that is, whether change in one concern is linked to change in the other either within the same day or during the next day. We also tested whether the coping strategy of seeking support from family and friends moderated the link between worries and risky behaviors. For 10 days, an ethnically and racially diverse sample of adolescents (N = 103; M age = 18.0) reported on 26 common worries, 18 risky behaviors, and the impact of seeking support from others. Multilevel models showed that worries and risky behaviors covaried on the same day and that worries predicted next-day risky behavior for male but not female participants. In contrast, risky behaviors did not predict next-day worries. For adolescents reporting negative experiences of support seeking, worries led to next-day risky behaviors and risky behaviors led to next-day worries. Female adolescents' positive support-seeking experiences buffered the association between risky behaviors and next-day worries. These results were significant beyond any influence of daily negative mood or depressive and anxiety symptoms. The data demonstrate that worries and risky behaviors may be situational triggers for each other and highlight the importance, from intervention perspectives, of adolescents' communication of concerns to others.

Longitudinal Associations Between Family Aggression, Externalizing Behavior, and the Structure and Function of the Amygdala.

Using longitudinal data from 21 adolescents, we assessed family aggression (via mother, father, and youth report) in early adolescence, externalizing behavior in mid-adolescence, and magnetic resonance imaging (MRI) data in late adolescence. Amygdalae were manually traced, and used as seed regions for resting state analyses. Both family aggression and subsequent externalizing behavior predicted larger right amygdala volumes and stronger amygdala-frontolimbic/salience network connectivity and weaker amygdala-posterior cingulate connectivity. Externalizing behavior in mid-adolescence mediated associations between family aggression in early adolescence and resting state connectivity between the amygdala and the subgenual anterior cingulate cortex, medial prefrontal cortex, orbitofrontal cortex, and posterior cingulate cortex in late adolescence. Family adversity and adolescent behavior problems may share common neural correlates.

How discrimination and perspective-taking influence adolescents' attitudes about justice.

Little is known about factors influencing adolescents' justice attitudes. This online study investigates perspective-taking and experiences with discrimination for their associations with adolescents' beliefs about how justice is best served. Participants included 179 ethnically/racially diverse high school students (Mage = 16.67 years; SD = 1.02). Higher perspective-taking was associated with less punitive and more restorative attitudes. Youth reporting more personal and ethnic/racial discrimination experiences endorsed more restorative justice attitudes. Perspective-taking also moderated the associations between reports of family, personal, and religious discrimination and punitive justice attitudes: adolescents reporting higher discrimination showed a stronger inverse relationship between perspective-taking and punitive attitudes. Findings have implications for school and community programs aiming to implement restorative policies, and for adolescents' civic participation.

Parent-Child Attunement Moderates the Prospective Link between Parental Overcontrol and Adolescent Adjustment.

Parental overcontrol (OC), behavior that intrusively or dominantly restricts child autonomy, has been identified as a transdiagnostic risk factor for youth. However, it is as yet unknown whether the association between parental OC and child maladjustment remains even when OC is exerted infrequently or by attuned parents. Rather, the selective use of OC might steer children away from danger. Taking a developmental psychopathology approach, this study focuses on the larger parent-child relationship context, testing whether either the dose at which parents demonstrate OC or the degree to which children perceive their parents as attuned determines whether OC is risky or protective for adolescents' adjustment. Among a community sample of 114 families of children followed from the ages of 12-18, we examine whether OC, behaviorally coded from triadic mother-father-child discussions in middle childhood, is associated with later risky behavior and anxiety symptoms in adolescence. Overcontrol exerted by either mothers or fathers had a curvilinear effect on adolescent risky behaviors, and this effect was moderated by children's perceived attunement. Although OC generally was associated with increased risky behaviors, low doses of OC or OC exerted by highly attuned parents protected against engagement in risky behaviors. No main effect of OC was observed on adolescent anxiety; however, mothers' OC interacted with perceived parental attunement, such that OC exerted by less attuned parents predicted greater anxiety. Results underscore that the effect of parenting behaviors depends on the larger parent-child relationship context.

Adolescent Life Stress and the Cortisol Awakening Response: The Moderating Roles of Attachment and Sex.

This longitudinal study investigated how past versus current life stresses relate to adolescents' cortisol awakening response (CAR), an index of hypothalamic-pituitary-adrenal activity. Ninety-nine adolescents reported previous year life stress at ages 12 and 18. At the second assessment, participants also provided self-reports of parent and peer attachment and 3 days of cortisol samples. Current stress was associated with heightened CAR for both males and females, whereas past stress was associated with attenuated CAR for males. Attachment to peers buffered the relationship between past stress and attenuated CAR for all adolescents; attachment to parents was a buffer for male adolescents only. Results demonstrate the protective roles of adolescent relationships and highlight sex differences in biopsychosocial development across adolescence.

Neural mediators of the intergenerational transmission of family aggression.

Youth exposed to family aggression may become more aggressive themselves, but the mechanisms of intergenerational transmission are understudied. In a longitudinal study, we found that adolescents' reduced neural activation when rating their parents' emotions, assessed via magnetic resonance imaging, mediated the association between parents' past aggression and adolescents' subsequent aggressive behavior toward parents. A subsample of 21 youth, drawn from the larger study, underwent magnetic resonance imaging scanning proximate to the second of two assessments of the family environment. At Time 1 (when youth were on average 15.51 years old) we measured parents' aggressive marital and parent-child conflict behaviors, and at Time 2 (≈2 years later), we measured youth aggression directed toward parents. Youth from more aggressive families showed relatively less activation to parent stimuli in brain areas associated with salience and socioemotional processing, including the insula and limbic structures. Activation patterns in these same areas were also associated with youths' subsequent parent-directed aggression. The association between parents' aggression and youths' subsequent parent-directed aggression was statistically mediated by signal change coefficients in the insula, right amygdala, thalamus, and putamen. These signal change coefficients were also positively associated with scores on a mentalizing measure. Hypoarousal of the emotional brain to family stimuli may support the intergenerational transmission of family aggression.

Neural correlates of parent-child HPA axis coregulation.

Parents and children have been found to show coordination or coregulation of the hypothalamic-pituitary-adrenal (HPA) axis. This coordination may be reflected in adolescents' neural activation to parent stimuli, particularly in regions of the brain associated with social information processing. This study reports on 22 adolescents (13 males, mean age 17years), recruited from a longitudinal study to participate in a functional MRI (fMRI) scanning protocol. Approximately 1.5years before the scan, these same adolescents participated in a family conflict discussion in the lab with both parents, and all three family members provided samples of salivary cortisol five times, before and after the discussion. Multilevel models found positive cross-sectional and time-lagged associations between parents' and youth cortisol. Empirical Bayes (EB) coefficients, extracted from these models to reflect the strength of the relationship between parent and adolescent cortisol, were tested in conjunction with adolescents' neural activation to video clips of their parents taken from the conflict discussion. For both mothers and fathers, youth who showed stronger cortisol coregulation with each parent (both in cross-sectional and time-lagged analyses) showed more activation to that same parent in posteromedial regions (precuneus, posterior cingulate, and retrosplenial cortex) that have been linked with social cognition, e.g. mentalizing about others' emotions. Youths' adrenocortical coregulation with their parents may be reflected in their neural processing of stimuli featuring those same parents.