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1.
Dev Psychobiol ; 66(6): e22515, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38923470

RESUMO

Theories of adolescent development suggest that elevated neural sensitivity to social evaluation confers tradeoffs for adolescents' wellbeing, promoting adaptation to changing social contexts but increasing risk for emotional distress and depression. This study investigated whether the association between neural processing of peer feedback and depressive symptoms depends on teacher-reported executive function (EF) ability in adolescent girls. Girls showed activation to negative and positive peer feedback in regions implicated in social-emotional processing that interacted with EF to predict depressive symptoms. Specifically, activation predicted more depression in youth with poorer EF but less depression in youth with better EF, suggesting that the impact of increased social sensitivity may depend on youths' ability to regulate this sensitivity in adaptive ways.


Assuntos
Depressão , Função Executiva , Grupo Associado , Humanos , Feminino , Função Executiva/fisiologia , Adolescente , Depressão/fisiopatologia , Retroalimentação Psicológica/fisiologia , Criança , Desenvolvimento do Adolescente/fisiologia , Percepção Social
2.
J Res Adolesc ; 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38946334

RESUMO

Throughout his career, John Schulenberg challenged us to understand adolescent development as the confluence of distal and proximal experiences along with critical transitions. Heeding this call, we examined whether chronic childhood peer victimization predicted adolescents' depressive symptoms via early-emerging depression growth trajectories, continued victimization into adolescence, and stress-amplification at the middle school transition. Self-reported depressive symptoms and teacher-reported and self-reported peer victimization were obtained from 636 youth (338 girls; Mage = 7.96 years, 66.7% White, 21.7% Black, 11.6% other) in the 2nd-9th grades. Latent growth curve analyses revealed that, by 7th grade, chronic childhood peer victimization was associated with depressive symptoms only through an indirect association with peer victimization in adolescence, underscoring how interrelated historical and ongoing interpersonal stressors contribute to adolescent psychopathology.

3.
Child Dev ; 94(2): 424-438, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36308038

RESUMO

This study examined the role of social goals in shaping children's in vivo emotional responses during a challenging dyadic peer interaction. In all, 132 children (Mage  = 9.46 years, SD = 0.33; 50% girls; 72% White) participated in a dyadic social challenge (conflict-of-interest situation) and reported their social goals and emotions during the task, and observers coded child emotions and dyad negativity. Mastery goals predicted more positive emotions unless interactions were highly negative. Performance-avoidance goals predicted more negative emotions, particularly in the context of negative interactions and disappointing outcomes. Performance-approach goals predicted less negative displayed emotions but more negative self-reported emotions. Findings provide novel insights into how context-specific social goals contribute to affective social competence during peer interactions.


Assuntos
Emoções , Objetivos , Feminino , Criança , Humanos , Masculino , Relações Interpessoais , Grupo Associado , Habilidades Sociais
4.
Child Dev ; 94(2): 529-543, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36437780

RESUMO

To examine whether need for approval (NFA) and antisocial behavior (ASB) moderate the effects of socioemotional stimuli on cognitive control, 88 girls (Mage  = 16.31 years; SD = 0.84; 65.9% White) completed a socioemotional Go/No-go and questionnaires. At high approach NFA, girls responded more slowly during appetitive than control (b = -8.80, p < .01) and aversive (b = -5.58, p = .01) trials. At high ASB, girls responded more slowly (b = -6.12, p = .02) and less accurately (OR = 1.11, p = .03) during appetitive than aversive trials; at low ASB, girls responded more slowly during aversive than control trials (b = -4.42, p = .04). Thus, both context and individual differences influence adolescents' cognitive control.


Assuntos
Comportamento do Adolescente , Transtorno da Personalidade Antissocial , Feminino , Humanos , Adolescente , Transtorno da Personalidade Antissocial/psicologia , Sinais (Psicologia) , Inquéritos e Questionários , Cognição
5.
Artigo em Inglês | MEDLINE | ID: mdl-37233840

RESUMO

Lifetime social adversity predicts elevated depressive symptoms in adolescence. However, most adversity-exposed youth do not develop depression, highlighting the importance of examining risk and protective factors. The present study leveraged a multi-method approach, incorporating self-report, interview, and independent coding to examine whether appraisals of recent stressors moderate the effect of social adversity on depressive symptoms in 81 adolescent girls (Mage = 16.30 years, SD = .85). We utilized semi-structured interviews of lifetime adversity and recent stressors and semi-structured interviews and self-reports of depressive symptoms. Stress appraisals were calculated by regressing youths' subjective estimations of event stressfulness and dependence on estimations of independent coders. Lifetime social adversity predicted elevated depressive symptoms more strongly in girls who appraised interpersonal events as more stressful and dependent on their actions, providing insight into individual differences in depressive symptoms in adversity-exposed adolescents.

6.
J Youth Adolesc ; 52(8): 1674-1684, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37249810

RESUMO

Social and neurobiological factors independently associate with the development of antisocial behavior during adolescence, yet it is unclear how these factors contribute to antisocial behavior in girls. Using a longitudinal sample of 45 adolescent girls (age in years at scan: M = 15.38, SD = 0.33), this study examined the contributions of parent-adolescent relationship quality and deviant peer affiliation from 6th-8th grades along with the neural correlates of risk taking in 9th grade to later antisocial behavior. High parent-adolescent closeness in early adolescence predicted lower antisocial behavior for girls in later adolescence via lower affiliation with deviant peer groups and less activation of the medial prefrontal cortex during risk taking. Findings highlight the enduring role of parents and peers during adolescence, and the importance of investigating social relationships alongside the brain to identify a holistic understanding of the development of antisocial behavior in girls.


Assuntos
Comportamento do Adolescente , Transtorno da Personalidade Antissocial , Feminino , Humanos , Adolescente , Pais , Grupo Associado , Assunção de Riscos , Estudos Longitudinais
7.
Dev Psychopathol ; 34(4): 1447-1467, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-33762041

RESUMO

Adolescent risk for self-injurious thoughts and behaviors (STBs) involves disturbance across multiple systems (e.g., affective valence, arousal regulatory, cognitive and social processes). However, research integrating information across these systems is lacking. Utilizing a multiple-levels-of-analysis approach, this person-centered study identified psychobiological stress response profiles and linked them to cognitive processes, interpersonal behaviors, and STBs. At baseline, adolescent girls (N = 241, Mage = 14.68 years, Range = 12-17) at risk for STBs completed the Trier Social Stress Test (TSST), questionnaires, and STB interviews. Positive affect (PA), negative affect (NA), and salivary cortisol (SC) were assessed before and after the TSST. STBs were assessed again during 3, 6, and 9 month follow-up interviews. Multitrajectory modeling of girls' PA, NA, and SC revealed four profiles, which were compared on cognitive and behavioral correlates as well as STB outcomes. Relative to normative, girls in the affective distress, hyperresponsive, and hyporesponsive subgroups were more likely to report negative cognitive style (all three groups) and excessive reassurance seeking (hyporesponsive only) at baseline, as well as nonsuicidal self-injury (all three groups) and suicidal ideation and attempt (hyporesponsive only) at follow-up. Girls' close friendship characteristics moderated several profile-STB links. A synthesis of the findings is presented alongside implications for person-centered tailoring of intervention efforts.


Assuntos
Comportamento do Adolescente , Comportamento Autodestrutivo , Adolescente , Comportamento do Adolescente/psicologia , Criança , Feminino , Humanos , Hidrocortisona , Comportamento Autodestrutivo/psicologia , Ideação Suicida
8.
Dev Psychobiol ; 64(3): e22247, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35312047

RESUMO

Prior research has struggled to differentiate cortisol stress response patterns reflective of well-regulated versus dysregulated hypothalamic-pituitary-adrenal (HPA) axis function among adolescents. Here, we show how exploring profiles of joint HPA-inflammatory stress responsivity, and linking those profiles to pubertal development and peer stress exposure may aid such distinction. Adolescent girls (N = 157, Mage  = 14.72 years, SD = 1.38) at risk for psychopathology completed assessments of salivary cortisol and pro-inflammatory cytokines (i.e., tumor necrosis factor-α, interleukin-1ß, and interleukin-6) prior to and following the Trier Social Stress Test. Adolescents, a close friend, and a caregiver completed questionnaire measures of peer stress and pubertal status. Multitrajectory modeling of adolescents' cortisol and cytokine levels revealed three profiles: low cortisol response-stably low cytokine (n = 75), high cortisol response-stably moderate cytokine (n = 47), and low cortisol response-stably high cytokine (n = 35). Relative to low cortisol response-stably low cytokine, adolescents exhibiting the high cortisol response-stably moderate cytokine profile were more advanced in their pubertal development, but presented with similarly low levels of peer stress exposure. Despite showing cortisol responses that were indistinguishable from low cortisol response-stably low cytokine, adolescents exhibiting the low cortisol response-stably high cytokine profile were more pubertally advanced, but also more likely to have experienced chronic peer strain (self-report) and relational peer victimization (close friend-report). These findings thus illustrate the potential value of taking a multisystem approach to studying adolescent stress responsivity and underscore the importance of considering developmental and social factors when interpreting cortisol stress response patterns. Ultimately, such work may help inform developmental models of neuroendocrine dysregulation and related risk for psychopathology.


Assuntos
Saliva , Estresse Psicológico , Adolescente , Feminino , Humanos , Hidrocortisona , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal
9.
J Res Adolesc ; 32(4): 1566-1579, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35253314

RESUMO

The need to belong (NTB) and need for approval (NFA) are fundamental interpersonal needs vital to social development. Although these needs are universal, individual differences in the strength of these needs likely emerge from critical social experiences. In particular, given the growing salience of peer social evaluation and belonging across adolescence, interpersonal needs during this stage may be strongly tied to both early and recent experiences in the peer group. The aim of the present study was to examine the contribution of lifetime and recent peer adversity to both general and situation-specific interpersonal needs in a sample of adolescent girls (N = 89, Mage = 15.85). Results revealed that recent peer adversity predicted avoidance-oriented NFA, whereas a significant interaction between lifetime and recent peer adversity predicted approach-oriented NFA. Although neither lifetime nor recent peer adversity predicted individual differences in NTB, both predicted threats to interpersonal needs in the context of a laboratory manipulation of social exclusion. Specifically, both lifetime and recent peer adversity predicted greater need-threat prior to the exclusion, but only individuals who had experienced lifetime peer adversity continued to display ongoing high levels of threatened interpersonal needs.


Assuntos
Comportamento do Adolescente , Relações Interpessoais , Feminino , Adolescente , Humanos , Grupo Associado , Isolamento Social
10.
Dev Psychobiol ; 63(3): 481-495, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32929723

RESUMO

Exposure to peer victimization is a traumatic stressor, with adverse consequences for mental and physical health. This prospective, multi-method, multi-informant study investigated how victimization "gets into the brain," as reflected in neural dysregulation of emotion during adolescence. Moreover, we examined whether certain youth are particularly vulnerable to compromised neural function (i.e., a pattern of positive amygdala-right ventrolateral prefrontal cortex [rVLPFC] connectivity linked to poor emotion regulation [ER] and emotional distress) following victimization. In all, 43 adolescent girls completed an implicit ER task during a functional brain scan, and reported on rejection sensitivity. In 6th-9th grades, teachers and adolescents reported annually on victimization. Results revealed that a history of elevated victimization predicted less effective neural regulation of emotion (more positive amygdala-rVLPFC connectivity) in girls with high but not low rejection sensitivity. Consistent with a differential susceptibility model, high rejection sensitivity was associated with particularly effective neural regulation of emotion (more negative amygdala-rVLPFC connectivity) in girls with low-victimization histories. A parallel pattern emerged for a behavioral index of ER. This research provides insight into one pathway through which peer adversity undermines emotional development in ways that forecast compromised future health, and identifies youth who are at particularly high risk following peer adversity.


Assuntos
Bullying , Vítimas de Crime , Adolescente , Encéfalo/diagnóstico por imagem , Emoções , Feminino , Humanos , Imageamento por Ressonância Magnética , Grupo Associado , Estudos Prospectivos
11.
J Res Adolesc ; 31(2): 435-450, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33754422

RESUMO

Perceived relational value describes the extent to which individuals consider themselves to be liked and valued. Given the salience of peer opinions in adolescence, perceived relational value is an important part of adolescents' developing self-concept. Here, we examined the neural correlates of youth's perceptions of their relational value in two independent samples (N = 33, Mage  = 13.71, SD = 2.71; N = 26, Mage  = 15.43, SD = 0.33). In both studies, peer victimization was associated with lower perceived relational value behaviorally and with altered frontostriatal connectivity when perceiving low relational value during fMRI. Our results suggest that peer victimization may lead youth to become biased about how they will be perceived socially and may disrupt connectivity between brain regions involved in responding to appetitive social stimuli.


Assuntos
Bullying , Vítimas de Crime , Adolescente , Humanos , Estudos Longitudinais , Grupo Associado , Autoimagem
12.
J Adolesc ; 92: 10-19, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34388607

RESUMO

INTRODUCTION: For adolescent girls, close friendships may facilitate stress management and mitigate risk for internalizing psychopathology. However, little is known about how friendship processes may buffer (or potentially exacerbate) acute psychobiological responses to interpersonal stressors in ways that affect risk. METHODS: In a sample of 220 girls (ages 12-17 years) with a history of internalizing symptoms, this study investigated friendship dynamics following the Trier Social Stress Test (TSST) to evaluate associations between post-stressor friendship behaviors (expressions of vulnerability by the stressed teen; support offered by their close friend) and hypothalamic-pituitary-adrenal (HPA) axis stress responses. RESULTS: Multilevel regression modeling revealed that girls who displayed more pronounced cortisol reactivity expressed greater vulnerability to, and received greater support from, their close friend. Expressed vulnerability was associated with more efficient cortisol recovery. Close friend support was not significantly associated with cortisol recovery, nor did it influence the connection between expressed vulnerability and cortisol recovery. CONCLUSIONS: Findings suggest that HPA reactivity may prompt expressions of vulnerability to girls' close friends, and in this context, promote more efficient HPA recovery. Findings highlight the role friendship dynamics may play in HPA-related risk for internalizing symptoms and point to expressed vulnerability in adolescent girls' close friendships as a potential consideration for interpersonally-centered therapeutic approaches.


Assuntos
Amigos , Saliva , Adolescente , Criança , Feminino , Humanos , Hidrocortisona , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal , Estresse Psicológico
13.
Depress Anxiety ; 37(2): 179-193, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31995664

RESUMO

BACKGROUND: Depression rates increase markedly for girls across the adolescent transition, but the social-environmental and biological processes underlying this phenomenon remain unclear. To address this issue, we tested a key hypothesis from Social Signal Transduction Theory of Depression, which posits that individuals who mount stronger inflammatory responses to social stress should exhibit greater increases in depressive symptoms following interpersonal life stress exposure than those who mount weaker inflammatory responses to such stress. METHOD: Participants were 116 adolescent girls (Mage = 14.71) at risk for psychopathology, defined as having a history of mental health concerns (e.g., psychiatric treatment, significant symptoms) over the past 2 years. At baseline, we characterized their inflammatory reactivity to social stress by quantifying their salivary proinflammatory cytokine responses to a laboratory-based social stressor. Then, 9 months later, we assessed the interpersonal and noninterpersonal stressful life events that they experienced over the prior 9 months using an interview-based measure of life stress. RESULTS: As hypothesized, greater interpersonal life stress exposure was associated with significant increases in depression over time, but only for girls exhibiting stronger salivary tumor necrosis factor-α and interleukin-1ß reactivity to social stress. In contrast, noninterpersonal stress exposure was unrelated to changes in depression longitudinally, both alone and when combined with youths' cytokine reactivity scores. DISCUSSION: These results are consistent with Social Signal Transduction Theory of Depression and suggest that heightened inflammatory reactivity to social stress may increase adolescents' risk for depression. Consequently, it may be possible to reduce depression risk by modifying inflammatory responses to social stress.


Assuntos
Depressão/complicações , Depressão/imunologia , Inflamação/complicações , Inflamação/psicologia , Relações Interpessoais , Modelos Psicológicos , Estresse Psicológico/complicações , Estresse Psicológico/imunologia , Adolescente , Criança , Depressão/psicologia , Feminino , Humanos , Inflamação/imunologia , Interleucina-1beta/análise , Interleucina-1beta/imunologia , Entrevistas como Assunto , Masculino , Psicopatologia , Saliva/imunologia , Estresse Psicológico/psicologia , Fator de Necrose Tumoral alfa/análise , Fator de Necrose Tumoral alfa/imunologia
14.
Dev Psychopathol ; 32(4): 1495-1508, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-31744573

RESUMO

Belonging to a social group is one of the most important factors contributing to well-being. The Belonging Regulation model proposes that humans possess a social monitoring system (SMS) that evaluates social inclusion and monitors belonging needs. Here, we used a prospective longitudinal design to examine links between peer victimization experienced across 7 years and social monitoring at the behavioral and neural level in adolescent girls (n = 38, Mage = 15.43 years, SD = .33). Participants completed a social evaluation task during a functional magnetic resonance imaging (fMRI) scan. More severe peer victimization was associated with increased activation to in-group versus out-group peers in the amygdala, ventral striatum, fusiform gyrus, and temporoparietal junction. Moreover, participants who displayed increased activation in these regions reported lower social self esteem and higher levels of internalizing and externalizing symptoms. These results suggest that exposure to peer victimization across the school years is associated with heightened social monitoring at the neural level during adolescence, which has potential adverse implications for girls' adjustment and well-being.


Assuntos
Bullying , Vítimas de Crime , Adolescente , Tonsila do Cerebelo , Feminino , Humanos , Grupo Associado , Estudos Prospectivos
15.
J Res Adolesc ; 30(3): 581-598, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32030842

RESUMO

The purpose of this study was to investigate contributions of maternal emotional resources to individual differences in adolescents' functional connectivity during emotion regulation. Participants included 35 adolescent girls who completed an implicit emotion regulation task during fMRI. Mothers reported on the quality of their adult attachment and emotional awareness when youth were in elementary school. Higher anxious attachment and lower emotional awareness were significantly correlated with more positive amygdala-right ventrolateral prefrontal cortex connectivity, a pattern linked in prior research with ineffective emotion regulation and emotional difficulties. Further, there was an indirect effect of anxious attachment on adolescent connectivity through emotional awareness. These results suggest that compromised maternal emotional resources in childhood may be linked to atypical neural processing of emotions.


Assuntos
Desenvolvimento do Adolescente , Regulação Emocional/fisiologia , Mães/psicologia , Apego ao Objeto , Adolescente , Feminino , Humanos , Estudos Longitudinais , Relações Mãe-Filho/psicologia
16.
J Res Adolesc ; 30 Suppl 1: 177-191, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-30270464

RESUMO

This research examined whether heightened neural activation to social cues confers adjustment advantages in supportive social contexts but adjustment disadvantages in stressful social contexts. Forty-five adolescent girls were exposed to social exclusion during an fMRI scan and reported on parent-child relationship quality and depressive symptoms. Stressful parent-child relationships predicted subsequent depressive symptoms in girls with high and moderate but not low dorsal anterior cingulate cortex, subgenual anterior cingulate cortex, and anterior insula activation during exclusion. In the context of supportive parent-child relationships, however, neural activation to exclusion predicted particularly low levels of depressive symptoms. This support for a biological sensitivity to context model suggests the possibility of redirecting adolescent girls' neural sensitivity to social cues toward more positive adaptation.


Assuntos
Depressão/patologia , Relações Pais-Filho , Isolamento Social/psicologia , Adolescente , Córtex Cerebral/diagnóstico por imagem , Córtex Cerebral/patologia , Sinais (Psicologia) , Depressão/diagnóstico por imagem , Feminino , Humanos , Imageamento por Ressonância Magnética
17.
J Clin Child Adolesc Psychol ; 48(2): 288-295, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-29889554

RESUMO

This study examined associations between multiple types of interpersonal and noninterpersonal stressors and the subsequent occurrence of suicide ideation and attempts among female adolescents. Adolescents ages 12 to 18 years old (n = 160) at elevated risk for suicidal thoughts and behaviors were followed for 18 months, divided into two 9-month epochs for data analysis (Periods 1 and 2). Exposure to acute relational victimization, targeted rejection, nonspecified interpersonal, and noninterpersonal life stressors over the first 9-month epoch (Period 1) was assessed using semistructured interviews and an independent life stress rating team. Participants also completed phone-based semistructured interviews of suicidal thoughts and behaviors. Preliminary analyses showed significant prospective associations between acute targeted rejection and nonspecified interpersonal stress during Period 1 and suicide ideation during Period 2, as well as relational victimization and noninterpersonal stress during Period 1 and suicide attempts during Period 2. However, in logistic regression analyses that adjusted for prior suicidality and depressive symptoms, relational victimization during Period 1 (but not targeted rejection, nonspecified interpersonal or noninterpersonal events) was associated with increased odds of suicide attempt during Period 2. Therefore, acute relational victimization exposure is associated with heightened risk for suicidal behaviors in female adolescents. Future studies should examine potential mediators and moderators of this association, and these stressors should be considered for inclusion in clinical screening tools.


Assuntos
Comportamento do Adolescente/psicologia , Vítimas de Crime/psicologia , Suicídio/psicologia , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Estudos Prospectivos , Rejeição em Psicologia , Adulto Jovem
18.
J Child Psychol Psychiatry ; 59(2): 129-139, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28892126

RESUMO

BACKGROUND: During adolescence, peer victimization is a potent type of social stressor that can confer enduring risk for poor mental and physical health. Given recent research implicating inflammation in promoting a variety of serious mental and physical health problems, this study examined the role that peer victimization and cognitive vulnerability (i.e. negative cognitive styles and hopelessness) play in shaping adolescents' pro-inflammatory cytokine responses to an acute social stressor. METHODS: Adolescent girls at risk for psychopathology (n = 157; Mage  = 14.73 years; SD = 1.38) were exposed to a laboratory-based social stressor before and after which we assessed salivary levels of three key pro-inflammatory cytokines - interleukin-6 (IL-6), interleukin-1ß (IL-1ß), and tumor necrosis factor-α (TNF-α). RESULTS: As hypothesized, adolescents with greater peer victimization exposure exhibited greater increases in IL-6 and IL1-ß in response to the laboratory-based social stressor. Moreover, for all three cytokines individually, as well as for a combined latent factor of inflammation, peer victimization predicted enhanced inflammatory responding most strongly for adolescents with high levels of hopelessness. CONCLUSIONS: The findings reveal a biological pathway by which peer victimization may interact with cognitive vulnerability to influence health in adolescence.


Assuntos
Bullying/psicologia , Vítimas de Crime/psicologia , Citocinas/metabolismo , Esperança , Inflamação/metabolismo , Grupo Associado , Estresse Psicológico/metabolismo , Estresse Psicológico/psicologia , Adolescente , Feminino , Humanos , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Risco , Saliva , Fator de Necrose Tumoral alfa/metabolismo
19.
Dev Psychopathol ; 30(1): 13-26, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28393755

RESUMO

Although behavioral and experimental studies have shown links between victimization and antisocial behavior, the neural correlates explaining this link are relatively unknown. In the current study, we recruited adolescent girls from a longitudinal study that tracked youths' reports of peer victimization experiences annually from the second through eighth grades. Based on these reports, 46 adolescents were recruited: 25 chronically victimized and 21 nonvictimized. During a functional magnetic resonance imaging scan, participants completed a risk-taking task. Chronic peer victimization was associated with greater risk-taking behavior during the task and higher levels of self-reported antisocial behavior in everyday life. At the neural level, chronically victimized girls showed greater activation in regions involved in affective sensitivity, social cognition, and cognitive control, which significantly mediated victimization group differences in self-reported antisocial behavior.


Assuntos
Encéfalo/diagnóstico por imagem , Bullying , Vítimas de Crime/psicologia , Grupo Associado , Comportamento Problema/psicologia , Assunção de Riscos , Adolescente , Comportamento do Adolescente/psicologia , Criança , Feminino , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Risco , Autorrelato
20.
Dev Psychopathol ; 30(4): 1487-1501, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29157324

RESUMO

This study examined the impact of the middle school transition on general anxiety trajectories from middle childhood to middle adolescence, as well as how youths' individual vulnerability and exposure to contextual stressors were associated with anxiety trajectories. Participants were 631 youth (47% boys, M age = 7.96 years at Time 1), followed for 7 successive years from second to eighth grade. Teachers reported on youths' individual vulnerability to anxiety (anxious solitude) in second grade; youth reported on their anxiety in second to eighth grade and aspects of their social contexts particularly relevant to the school transition (school hassles, peer victimization, parent-child relationship quality, and friendship quality) in sixth to eighth grade. The results revealed two subgroups that showed either strongly increasing (5%) or decreasing (14%) levels of anxiety across the transition and two subgroups with fairly stable levels of either high (11%) or low (70%) anxiety over time. Youth in the latter two subgroups could be distinguished based on their individual vulnerability to anxiety, whereas youth with increasing anxiety reported more contextual stressors and less contextual support than youth with decreasing anxiety. In sum, findings suggest that the middle school transition has the potential to alter developmental trajectories of anxiety for some youth, for better or for worse.


Assuntos
Ansiedade/psicologia , Individualidade , Relações Pais-Filho , Grupo Associado , Instituições Acadêmicas , Adolescente , Bullying , Criança , Feminino , Amigos/psicologia , Humanos , Masculino , Comportamento Social
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