Chronic neglect and aggression/delinquency: A longitudinal examination

Intergenerational Continuity of Childhood Adversity and Its Underlying Mechanisms Among Teen Mothers and Their Offspring

The present study investigates how parenting stress mediates the intergenerational continuity of childhood adversity in teenage mothers. Childhood adversity experiences of caregivers significantly affect their offspring's exposure to childhood adversity. However, little is known about the mechanisms linking childhood adversity across generations. The study measures how parental distress and parent-child dysfunctional interaction mediate the association between teen mothers' childhood adversity and their offspring's adversity, measuring when the offspring reached 11.5 years of age. The results revealed that parental distress, but not parent-child dysfunctional interaction, mediated the association between teen mothers' child abuse and their offspring's household dysfunction. This suggests that parental distress may be a crucial intervention target to prevent the intergenerational continuity of childhood adversity. The findings imply that efforts to prevent the intergenerational continuity of childhood adversity may be more successful if the public and professionals have a broader understanding of the associations between early adversity and parenting contexts. In conclusion, the study shed light on the potential mechanisms underlying the intergenerational continuity of childhood adversity and highlights the importance of targeting parenting stress, specifically parental distress, as an intervention strategy to prevent the perpetuation of childhood adversity across generations.

Sex-specific co-developmental trajectories of childhood victimization among elementary school students: Relations to social behavior

This study aimed to identify sex-specific co-developmental trajectories of multiple forms of childhood victimization: family maltreatment (FM), psychological maltreatment by teachers (PMT), and peer victimization (PV), and their relations to prosocial and delinquent behaviors among elementary school students. A total of 4378 Chinese elementary school students (Mage = 9.93; SD = 0.92; 55.14% boys) participated in assessments on five occasions, using six-month intervals. Parallel process latent class growth model analyses revealed three trajectories for boys: Congruent-low (75.64%), High-PV, Moderate-FM and PMT (14.62%), and Moderate-PV, High-FM and PMT (9.74%). Similarly, girls exhibited three trajectories: Congruent-low (81.11%), Moderate-PMT, High-FM and PV (10.54%), and High-PMT, Moderate-FM and PV (8.35%). The results indicated that boys were more susceptible than girls to three forms of childhood victimization. Furthermore, boys were especially vulnerable to co-occurring FM and PMT. In contrast, girls were more vulnerable to co-occurring FM and PV. Additionally, after experiencing childhood victimization, girls showed a greater hindrance in prosocial behavior development, whereas boys exhibited a more significant increase in delinquent behavior. These findings underscore the importance of considering sex differences in understanding multiple forms of childhood victimization and provide important insights for prevention and intervention efforts.

Neuroanatomical markers of social cognition in neglected adolescents

Growing up in neglectful households can impact multiple aspects of social cognition. However, research on neglect's effects on social cognition processes and their neuroanatomical correlates during adolescence is scarce. Here, we aimed to comprehensively assess social cognition processes (recognition of basic and contextual emotions, theory of mind, the experience of envy and Schadenfreude and empathy for pain) and their structural brain correlates in adolescents with legal neglect records within family-based care. First, we compared neglected adolescents (n = 27) with control participants (n = 25) on context-sensitive social cognition tasks while controlling for physical and emotional abuse and executive and intellectual functioning. Additionally, we explored the grey matter correlates of these domains through voxel-based morphometry. Compared to controls, neglected adolescents exhibited lower performance in contextual emotional recognition and theory of mind, higher levels of envy and Schadenfreude and diminished empathy. Physical and emotional abuse and executive or intellectual functioning did not explain these effects. Moreover, social cognition scores correlated with brain volumes in regions subserving social cognition and emotional processing. Our results underscore the potential impact of neglect on different aspects of social cognition during adolescence, emphasizing the necessity for preventive and intervention strategies to address these deficits in this population.

Investigating Trauma Symptomology as a Mediator of the Relationships Between Childhood Maltreatment and Sexual and Non-Sexual Delinquency

Maltreatment is a risk factor for both sexual and non-sexual delinquency. Little is known about how specific forms of maltreatment relate to the distinct offending outcomes. Though trauma symptoms have been associated with maltreatment and delinquency, the intervening role of trauma symptoms in pathways from maltreatment to offending is not well understood. The goal of the current study was to test social learning and general strain theory explanations for sexual and non-sexual delinquency in adolescence, exploring trauma symptoms as a mediator between the four major types of maltreatment and offending outcomes. Data were collected via surveys of 136 incarcerated youth at seven residential treatment and community corrections facilities in a Midwestern state. Confirmatory factor analysis (CFA) was used to establish a measurement model, and structural equation modeling was employed to test direct and indirect pathways from maltreatment to offending. Individual forms of maltreatment had differential relationships with offending outcomes, with neglect having a significant association with non-sexual delinquency, and sexual abuse having a significant direct relationship with sexual delinquency. Trauma symptomology did not mediate these relationships. Future research should explore developmentally appropriate proxies for measuring childhood trauma. Practice and policy should consider the role of maltreatment victimization history in the inception of delinquency behaviors, prioritizing therapeutic alternatives to detention and incarceration.

A reciprocal relationship between parental maltreatment and child bullying perpetration in China

This study aimed to examine the longitudinal reciprocal relationship between parental maltreatment and child bullying perpetration from middle childhood to early adolescence in China and the associated gender differences. Eight hundred ninety-one children completed a battery of questionnaires at four time points. A random-intercept cross-lagged model was established. The results indicated that at the between-person level, child bullying perpetration was positively associated with physical and psychological maltreatment. At the within-person level, there was a significant association between an increase in bullying perpetration and an increase in parental psychological and physical maltreatment across the four time points. Conversely, an increase in physical maltreatment led to an increase in child bullying perpetration from T1 to T2, while an increase in psychological maltreatment resulted in an increase in child bullying perpetration from T1 to T2 and T2 to T3. Furthermore, an increase in physical maltreatment increased boys' bullying perpetration but decreased that in girls from T2 to T3. These findings provide inspiration for future family education and anti-bullying interventions in schools.

Maternal separation early in life induces excessive activity of the central amygdala related to abnormal aggression

Epidemiological studies have indicated that child maltreatment, such as neglect, is a risk factor of escalated aggression, potentially leading to delinquency and violent crime in the future. However, little is known about the mechanisms by which an early adverse environment may later cause violent behavior. In this study, we aimed to thoroughly examine the association between aggression against conspecific animals and the activity of amygdala subnuclei using the maternal separation (MS) model, which is a common model of early life stress. In the MS group, pups of Sprague-Dawley rats were separated from their dam during postnatal days 2-20 (twice a day, 3 h each). We only included 9-week-old male offspring for each analysis and compared the MS group with the mother-reared control group; both groups were raised by the same dam during postnatal days 2-20. The results revealed that the MS group exhibited higher aggression and excessive activity of only the central amygdala (CeA) among the amygdala subnuclei during the aggressive behavior test. Moreover, a significant positive correlation was observed between higher aggression and CeA activation. While CeA activity is known to be involved in hunting behavior for prey, some previous studies have also indicated a relationship between CeA and intraspecific aggression. It remains unclear, however, whether excessive CeA activity directly induces intraspecific aggression. Therefore, we stimulated the CeA using optogenetics with 8-week-old rats to clarify the relationship between intraspecific aggression and CeA activity. Notably, CeA activation resulted in higher aggression, even when the opponent was a conspecific animal. In particular, bilateral CeA activation resulted in more severe displays of aggressive behavior than necessary, such as biting a surrendered opponent. These findings suggest that an adverse environment during early development intensifies aggression through excessive CeA activation, which can increase the risk of escalating to violent behavior in the future.

The Relationship Between Parental Phubbing and Interpersonal Aggression in Adolescents: The Role of Rejection Sensitivity and School Climate

The impact of parental phubbing has attracted the attention of researchers, especially concerning adolescents' online behavior. However, limited research has studied the influence of parental phubbing on interpersonal aggression, including the underlying mechanism. Grounded in parental acceptance-rejection theory, the present study investigated the association between parental phubbing and interpersonal aggression as well as the mediating role of rejection sensitivity among adolescents. Additionally, school climate was explored as a moderator based on social ecological theory. The multiple questionnaires were completed by 914 Chinese adolescents (M = 12.61; SD = 1.73; 49.78% girls). The results revealed a positive correlation between parental phubbing and aggression, which was mediated by rejection sensitivity. That is, adolescents who experienced parental phubbing were more likely to exhibit rejection sensitivity, which further triggered aggression. Moreover, school climate acted as a moderator in the model. Specifically, we found no significant moderating effect of school climate on parental phubbing and aggression. However, school climate moderated the relationship between rejection sensitivity and aggression. A positive school climate buffered the associations of rejection sensitivity and aggression. Additionally, school climate moderated the relationship between parental phubbing and rejection sensitivity. The relationship between parental phubbing and rejection sensitivity became nonsignificant when adolescents were in a negative school climate, and those adolescents reported higher rejection sensitivity whether they experienced parental phubbing or not. Parental phubbing was more strongly associated with adolescents' rejection sensitivity in a positive school climate. With a lower level of parental phubbing, rejection sensitivity is sharply reduced. The results deepen our understanding of the relationship between parental phubbing and aggression and its underlying mechanisms. It also implicates preventative interventions to reduce the risk of parental phubbing in interpersonal aggression among adolescents.

The role of neighborhood collective efficacy in moderating associations between adversity and internalizing and externalizing problems in adolescents

Neighborhood collective efficacy is associated with lower internalizing and externalizing problems. There is evidence that neighborhood factors may moderate associations between child adversity and behavior problems (e.g., Riina et al., 2014). There is a limited understanding of whether neighborhood collective efficacy moderates the associations between adversity (threat/deprivation) and internalizing and externalizing problems. Our study tested these associations in the Fragile Families and Child Wellbeing Study (n = 2666). Parental disengagement (deprivation) and parental harshness (threat) severity scores from ages 1-9 years were calculated by using caregiver report. Neighborhood collective efficacy, including its components informal social control and social cohesion, was reported at age 9. Internalizing and externalizing problems were reported at age 15. The lowest level of internalizing problems was reported for adolescents living in neighborhoods with high neighborhood collective efficacy who also experienced low parental disengagement. Among adolescents who lived in neighborhoods with high neighborhood collective efficacy or high informal social control at age 9, higher parental disengagement was associated with higher externalizing problems at 15. Further research is needed to understand complex associations between adversity, neighborhood collective efficacy, and adolescent behavior problems.

The relationship between parental neglect and cyberbullying perpetration among Chinese adolescent: The sequential role of cyberbullying victimization and internet gaming disorder

Cyberbullying perpetration and victimization have been common public health issues that have impaired the development of adolescent physical and mental health. Abundant research has proven associations between negative parental factors and cyberbullying perpetration. However, there is a paucity of research exploring the impact of parental neglect on cyberbullying and its internal mechanisms. Based on the parental acceptance-rejection theory (PARTheory) and the general aggression model (GAM), the present study constructs a sequential mediation model in which parental neglect is related to adolescent cyberbullying perpetration through cyberbullying victimization and internet gaming disorder (IGD). Using random cluster sampling, a total of 699 middle school students (M age = 14.18 years, SD = 1.22, and 324 boys) were recruited from five schools in three provinces on mainland China. The participants completed questionnaires regarding parental neglect, cyberbullying perpetration, cyberbullying victimization, and IGD. The results of structural equation modeling indicated that parental neglect was positively associated with cyberbullying perpetration. The mediating effects of cyberbullying victimization and IGD in this relationship are significant both individually and jointly. The current findings have important implications for enlightening families and schools to pay particular attention to adolescents' experiences of parental neglect and provide them with timely feedback and assistance. This will contribute to the prevention and reduction of adolescent involvement in cyberbullying perpetration.

Psychometric Properties of the Child Neglect Scale and Risk Factors for Child Neglect in Chinese Young Males Who Were Incarcerated

Child neglect is an important risk factor for juvenile delinquency, while few studies have examined child neglect in Chinese juvenile delinquents due to the lack of appropriate measurement tools. The Child Neglect Scale is a 38-item retrospective self-report scale that specifically focuses on child neglect. The current study, therefore, aimed to examine the psychometric properties of the Child Neglect Scale and risk factors for child neglect among Chinese juvenile delinquents. A total of 212 young males who were incarcerated participated in this study, and the Childhood Trauma Questionnaire, Child Neglect Scale, and basic information questionnaire were used to collect data. The results showed that the Child Neglect Scale has good reliability, and the mean inter-item correlation coefficients reach accepted standards. Moreover, it is found that child neglect is prevalent among Chinese young males who are incarcerated, with communication neglect occurring most frequently. Low levels of family monthly income and rural residency are risk factors for child neglect. The average scores of security neglect, physical neglect, and communication neglect of the participants respectively show statistically significant differences according to the type of major caregivers. Findings suggest that the Child Neglect Scale may be used to measure child neglect with four independent subscales in Chinese young males who are incarcerated.

Upregulations of α1 adrenergic receptors and noradrenaline synthases in the medial prefrontal cortex are associated with emotional and cognitive dysregulation induced by post-weaning social isolation in male rats

Early-life social isolation induces emotional and cognitive dysregulation, such as increased aggression and anxiety, and decreases neuron excitability in the medial prefrontal cortex (mPFC). The noradrenergic system in the mPFC regulates emotion and cognitive function via α₁ or α_2A adrenergic receptors, depending on noradrenaline levels. However, social isolation-induced changes in the mPFC noradrenergic system have not been reported. Here, male Wistar rats received post-weaning social isolation for nine consecutive weeks and were administered behavioral tests (novel object recognition, elevated plus maze, aggression, and forced swimming, sequentially). Protein expression levels in the mPFC noradrenergic system (α₁ and α_2A adrenergic receptors, tyrosine hydroxylase, and dopamine-β-hydroxylase used as indices of noradrenaline synthesis and release) were examined through western blotting. Social isolation caused cognitive dysfunction, anxiety-like behavior, and aggression, but not behavioral despair. Socially-isolated rats exhibited increased protein levels of the α₁ adrenergic receptor, tyrosine hydroxylase, and dopamine-β-hydroxylase in the mPFC; there was no significant difference between the groups in the α_2A adrenergic receptor expression levels. Preferential activation of the α₁ adrenergic receptor caused by high noradrenaline concentration in the mPFC may be involved in social isolation-induced emotional and cognitive regulation impairments. Targeting the α₁ adrenergic receptor signaling pathway is a potential therapeutic strategy for psychiatric disorders with symptomatic features such as emotional and cognitive dysregulation.

Childhood Trauma and Malevolent Creativity in Chinese College Students: Moderated Mediation by Psychological Resilience and Aggression

Although a previous study has shown that childhood trauma influences malevolent creativity, aggression and psychological resilience have been linked with childhood trauma and creativity. However, little is known about the complex correlations among these factors in Chinese college students. The present study aimed to investigate the mediating role of aggression and the moderating role of psychological resilience between childhood trauma and malevolent creativity. A total of 389 undergraduates were enrolled in this cross-sectional study. The moderated mediation model was conducted to explore whether aggression mediated the correlation between childhood trauma and malevolent creativity and whether psychological resilience moderated the indirect role of childhood trauma. The results showed that childhood trauma positively correlated with aggression and malevolent creativity and was negatively associated with psychological resilience. Aggression partly mediated the association of childhood trauma with malevolent creativity. Resilience moderated the indirect effect of the mediation model, such that the indirect effect of childhood trauma on malevolent creativity through aggression increased as the level of resilience increased. The study indicated that childhood trauma exposure is associated with malevolent creativity behavior, and aggression mediated this association. The level of psychological resilience differentiates the indirect paths of childhood trauma on malevolent creativity. These results have important implications for preventing and containing expressions of malevolent creativity.

Influence of parental neglect on cyberbullying perpetration: Moderated mediation model of smartphone addiction and self-regulation

This study examines if parental neglect is significantly associated with adolescent cyberbullying perpetration, and whether this relationship is mediated by smartphone addiction. In addition, the moderation of self-regulation in the direct and indirect effects of parental neglect on cyberbullying perpetration among adolescents is determined. A random sample of 728 Chinese adolescents from Grade 10 to 12 in senior high schools respond to anonymous questionnaires regarding parental neglect, smartphone addiction, self-regulation and cyberbullying perpetration. The data are then analysed using macro PROCESS. Results reveal that adolescents who are neglected by parents are more likely to engage in cyberbullying perpetration. Smartphone addiction significantly partially mediates the above relationship. Moreover, self-regulation not only moderates the relationship of cyberbullying perpetration with parental neglect but also its association with smartphone addiction among adolescents. This study contributes to a better understanding of how parental neglect increases the risk of adolescent cyberbullying perpetration, which may be reduced through tailored interventions.

"Mental Health Problems in Abused Institutionalised Serbian Adolescents and Their Use of Social and Mental Health Services"

"The aim of the study was to determine the frequency of various forms of maltreatment in adolescents without parental care, their mental health problems and treatment needs. Sixty examinees of both genders, aged 12-18, were divided in two groups: abused group (adolescent without parental care in an institutional setting) and control group (general population). The presence/absence of registered abuse/neglect by official social services were the criterion for classifying respondents into groups. The general questionnaire, Childhood Trauma Questionnaire and Youth Self Report were used. 46.67% of adolescents were neglected, 40% of them suffered several types of abuse, 10% were physically abused, 3.33% were emotionally abused, and no adolescent was sexually abused. 16.6% of cases of sexual abuse in the abused group as well as milder forms of maltreatment in the control group were registered by self-reported retrospective measures, which are not part of official registers. Delinquency, aggressive behavior and somatic complaints are significantly more prominent in the abused group compared to the control group. 86% of adolescents used some form of support and counseling from professionals, 56.6% were included in psychiatric treatment, and only 36.6% in psychotherapy. Mental health problems in abused adolescents without parental care indicates the specific needs for psychotherapy and psychiatric treatment."

Early Life Adversity and Males: Biology, Behavior, and Implications for Fathers' Parenting

Fathers have an important and unique influence on child development, but influences on fathers' parenting have been vastly understudied in the scientific literature. In particular, very little empirical research exists on the effects of early life adversity (ELA; e.g. childhood maltreatment, parental separation) on later parenting among fathers. In this review, we draw from both the human and non-human animal literature to examine the effects of ELA, specifically among males, in the following areas: 1) neurobiology and neurocognitive functioning, 2) hormones and hormone receptors, 3) gene-environment interactions and epigenetics, and 4) behavior and development. Based on these findings, we present a conceptual model to describe the biological and behavioral pathways through which exposure to ELA may influence parenting among males, with a goal of guiding future research and intervention development in this area. Empirical studies are needed to improve understanding of the relationship between ELA and father's parenting, inform the development of paternal and biparental interventions, and prevent intergenerational transmission of ELA.

Association between schizoid tendencies and aggressive behaviors: mediating and moderating influences in childhood trauma and life events among Chinese adolescents

BACKGROUND

This study investigated an association between schizoid tendencies and aggressive behaviors in Chinese adolescents, and explored the underlying mechanism.

METHODS

The data of 3094 adolescents aged 12 to 16 years were collected from an epidemiological survey in China. All the subjects or their parents completed the Achenbach's Child Behavior Checklist, the Childhood Trauma Questionnaire-Short Form, and the Adolescent Self-rating Life Event Checklist (ASLEC).

RESULTS

Relative to the non-schizoid group, adolescents with schizoid tendencies (male or female) showed significantly higher scores for aggressive behaviors, emotional abuse, and ASLEC. Regarding females only, those with schizoid tendencies had significantly higher (lower) scores for physical abuse and emotional neglect (physical neglect). The aggressive behaviors score was predicted by scores for schizoid tendencies (β_male = 0.620, β_female = 0.638, both P < 0.001) and ASLEC (β_male = 0.125, β_female = 0.061, both P < 0.01), and by childhood trauma score (males: emotional neglect [β = 0.045, P = 0.021]; females: emotional abuse and sexual abuse [β = 0.118 and - 0.062, both P < 0.01]). The ASLEC and childhood trauma scores mediated the association between scores for schizoid tendencies and aggressive behaviors, specifically, emotional neglect (emotional abuse and sexual abuse) in males (females). In females, the interaction between scores for childhood trauma and ASLEC affected the aggressive behaviors score (P = 0.023).

CONCLUSIONS

Schizoid tendencies are associated with aggressive behaviors among Chinese adolescents. Recent life events and childhood trauma mediated an association between schizoid tendencies and aggressive behaviors. The interaction between childhood trauma and recent life events affected aggressive behaviors in females. Aggressive behaviors in adolescents may be ameliorated by reducing childhood trauma and life events.

Bullying patterns and their associations with child maltreatment and adolescent psychosocial problems

INTRODUCTION

This study aimed 1) to identify underlying heterogeneous patterns of bully-victim; 2) to examine whether the different types of child maltreatment predict the patterns of bully-victim; and 3) to investigate the association between patterns of bully-victim and adolescent psychosocial problems (depression, trouble at school, and substance use).

METHODS

This study included a sample of 1139 (48.7% girls, 53.4% Black) drawn from the Fragile Families and Child Wellbeing Study. Children's self-reported bullying victimization at age 9 was used using the Panel Study of Income Dynamics Child Development Supplement III. Teacher's reported bullying perpetration at age 9 was used using Social Skills Rating System. Child maltreatment types were assessed at age 5 using the Parent-Child Conflict Tactics Scale Coding. At age 15, adolescent depression was measured using modified Center for Epidemiologic Studies Depression Scale; trouble at school was measured using modified Add Health In-School Questionnaire; and self-reported substance use was used.

RESULTS

Latent class analysis produced four classes: bully-victim (19.8%), victim (16.3%), no bully-victim (38.9%), and bully (24.9%). Individuals who have been neglected are more likely to be in the victim class compared to all other classes. Physical abuse to be at heightened risk of involvement in the bully-victim, compared to victim class. Additionally, individuals in the victim group are greater risk for depression, problems at school, and alcohol, as compared to those in the other classes.

CONCLUSIONS

This study augments the knowledge base on bully/victim, child maltreatment, and behavioral health outcomes and elucidates several suggestions for research and policy.

Can doctors be taught virtue?

Medical schools and residency programs have become very adept at teaching medical students and residents an enormous amount of information. However, it is much less clear whether they are effective at fostering virtuous qualities like empathy or professionalism in trainees. This would come as no surprise to Plato, who famously argued in the Meno that virtue cannot be taught. This pedagogical challenge threatens to stymie medical educators, who increasingly recognize the importance of professionalism, compassion, and empathy in the practice of good medicine. As medical educators, we are motivated to demonstrate that virtue is teachable and to find a way to do so, as this is how we will be able to improve the conduct of physicians and the quality of their care of patients. As such, we address the question of the teachability of virtue in the realm of medicine, analysing Plato's contradictory analyses in the Meno and Protagoras, and drawing upon modern neuroscience to turn an empirical lens on the question. We explore the ways in which Noddings' Ethic of Care may offer a way forward for medical educators keen to foster virtue in trainees. We conclude by demonstrating how, by harnessing the power of caring relationships, the principles of Noddings' Ethic of Care have already been applied to medical education at a university in Israel.

Trait anger expression mediates childhood trauma predicting for adulthood anxiety, depressive, and alcohol use disorders

BACKGROUND

General aggression and evolutionary models posit that more severe early exposure experiences to trauma (physical, emotional, sexual abuse and/or neglect) place one at risk for adulthood psychopathology through heightened trait anger expression-internal (Anger-In) and external (Anger-Out). However, there are a dearth of empirical studies explaining the longitudinal childhood maltreatment-adulthood psychopathology relation.

OBJECTIVE

Therefore, this study investigated if childhood maltreatment exposure severity predicted elevated adulthood major depressive disorder (MDD), generalized anxiety disorder (GAD), panic disorder (PD), and alcohol use disorder (AUD). Moreover, we tested if trait anger expression - internal and external - mediated the childhood maltreatment-adulthood MDD, GAD, PD, and AUD symptom associations.

METHOD

Participants took part in two waves of measurement spaced approximately 9 years apart. Time 1 childhood trauma severity (retrospectively-reported Childhood Trauma Questionnaire), Time 2 Anger-In and Anger-Out (State-Trait Anger Expression Inventory), and Time 3 adulthood MDD, GAD, PD (Composite International Diagnostic Interview-Short Form), and AUD (Alcohol Screening Test) diagnoses were measured.

RESULTS

Anger-Out and Anger-In partially mediated the relations between childhood trauma severity and adulthood psychopathology diagnoses after adjusting for Time 2 symptoms. Higher Time 1 childhood trauma severity was related to greater Time 2 Anger-Out and Anger-In, and increased Time 2 Anger-Out and Anger-In were thereby related to elevated Time 3 adulthood MDD, PD and AUD, but not GAD severity. Trait anger accounted for 14 to 50% of the variance of childhood trauma-adulthood MDD, PD and AUD relations.

DISCUSSION

Theoretical and clinical implications, such as the need for trauma-informed care, are discussed.

Specific effects of neglect and physical abuse on adolescent aggressive behaviors by gender: A multicenter study in rural China

BACKGROUND

Neglect and physical abuse may be typical risk factors for aggressive behavior in adolescents. However, findings on their specific effects and sex differences are still unclear. This study aimed to examine the specific effects of neglect and physical abuse on adolescent aggressive behaviors and to further explore the potential sex-specific effect.

METHODS

A multicenter school-based survey was conducted in rural China. A total of 15,957 students aged 11-20 years completed self-report questionnaires to record aggressive behaviors, neglect and physical abuse, and other related information. Participants were grouped into those who experienced none, one of, or both neglect and physical abuse for statistical analyses.

RESULTS

Of the participants, 37.0% experienced both neglect and physical abuse, 30.0% experienced neglect only, and 9.8% experienced physical abuse only. Higher risk for physical aggression (OR=1.24, 95% CI=1.06-1.45), and lower risk for verbal aggression (OR=0.83, 95% CI=0.72-0.94) and hostility (OR=0.81, 95% CI=0.69-0.94) were found in the physical abuse only group as compared to the neglect only group. No sex difference was found between neglect or physical abuse and general aggressive behaviors (P>0.05), except that females were more likely to exert physical aggression than males when exposed to neglect and physical abuse (P<0.05).

LIMITATIONS

Cross-sectional design, retrospective self-report data, and not including other maltreatment subtypes.

CONCLUSIONS

Neglect and physical abuse may each have distinct sensitivity for different subtypes of aggression. Targeted treatment for diverse aggressive symptoms is suggested, and strategies to prevent both neglect and physical abuse across gender would yield comprehensive benefits.

The Relationship Between Childhood Neglect and Malevolent Creativity: The Mediating Effect of the Dark Triad Personality

In addition to what we know as benevolent creativity, which involves originality and usefulness, creativity also includes malevolent creativity, which involves the application of creative ideas to intentionally harm others. This study aimed to explore the environmental and individual predictors of malevolent creativity. We investigated the relationship among childhood neglect, Dark Triad personality traits and malevolent creativity and examined the mediating role of Dark Triad personality. A large sample (N = 991) of Chinese undergraduate students completed the childhood neglect scale, the 12-item Dirty Dozen and the Malevolent Creativity Behavior Scale. Structural equation modeling demonstrated that childhood neglect was positively related to individual malevolent creativity, and the Dark Triad partially mediated this relationship. Additionally, gender differences were found, such that childhood neglect had a stronger effect on malevolent creativity through the Dark Triad among males than females. The results were discussed from the perspectives of life history theory and social information processing theory.

Child Maltreatment and Aggressive Behaviors in Early Adolescence: Evidence of Moderation by Parent/Child Relationship Quality

The cycle of violence suggests that maltreatment increases children's aggression, but research shows that many children are resilient to the harms caused by maltreatment. This study examines whether or not parent/child relationship quality accounts for variation in the impact of maltreatment on aggression and hypothesizes that the effect will be weaker for children who have better relationships with their caregivers. Race differences in these effects are also examined. Based on prospective data from a high-risk sample of 620 (207 White and 413 Black) families in the Longitudinal Studies of Child Abuse and Neglect, ordinary least squares regression analyses indicated that youth with at least one official allegation of maltreatment before age 10 had significantly more frequent aggressive behaviors at age 12. The direct effect of maltreatment on aggression did not vary for Black and White youth. However, a significant three-way interaction indicated that parent/child relationship quality buffered the relationship between maltreatment and aggressive behaviors for White but not Black children. Although additional research is required to identify factors that ameliorate the impact of maltreatment for Black youth, the findings support the need for interventions to help children cope with maltreatment and to strengthen parent/child relationships.

Harsh physical punishment as a mediator between income, re-reports and out-of-home placement in a child protective services-involved population

Poverty is consistently associated with a higher risk of experiencing child maltreatment, and children from poor families are the majority of children involved in child protective services (CPS). However, the mediators in the relationship from income to CPS involvement are not entirely understood. Using theoretically-informed mediating path models and data from the second National Survey of Child and Adolescent Well-Being (NSCAW II), this study tests the role of harsh physical punishment as a mediator between family income and CPS involvement. CPS involvement was measured by subsequent report of maltreatment and removal to out-of-home care. The direct paths from income to re-report and to removal were significant; with higher income associated with lower risk of report and removal. Lower income was significantly associated with higher rates of harsh physical punishment. However, harsh punishment did not mediate the relationship between income and the outcomes. These results suggest that even within a population primarily comprised of low-income families, lower income is a risk for subsequent reports and removals as well as a risk for higher rates of harsh physical punishment. However, in this sample harsh physical punishment is not the mechanism that results in higher subsequent-reports or removal rates.

Childhood Sexual Abuse and Lifetime Aggression

This study of college undergraduates (N = 873) examined three hypotheses regarding associations between childhood sexual abuse and lifetime aggression: 1) childhood sexual abuse was expected to account for unshared variance in the lifetime aggression indicators after controlling for the potential effects of parental physical abuse, sibling physical abuse, exposure to intimate partner violence, peer bullying, and respondent age; 2) childhood sexual abuse associations were expected to be relatively stronger among the women than the men; 3) childhood sexual abuse links to lifetime aggression were expected to vary as a function of age of victimization (adolescent < childhood < dual-age victims). Aggression histories varied widely with over 20% reporting prior injuries inflicted on others (3.2% > five injuries). Sexual abuse links to aggression tended to be stronger (p < .001) for the women than the men, and rates of aggression were higher when sexual abuse recurred across both childhood and adolescence. Partial support was found for all three hypotheses.

Comorbidity of developmental trauma disorder (DTD) and post-traumatic stress disorder: findings from the DTD field trial

Background: Developmental trauma disorder (DTD) has been proposed to describe the biopsychosocial sequelae of exposure to interpersonal victimization in childhood that extend beyond the symptoms of post-traumatic stress disorder (PTSD). Objective: To characterize the psychopathology comorbid with DTD and to determine whether this comorbidity is distinct from, and extends beyond, comorbidities of PTSD. Method: DTD was assessed by structured interview, and probable Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) psychiatric disorders were identified with screening modules on the Kiddie Schedule for Affective Disorders and Schizophrenia, Present/Lifetime version (K-SADS-PL), in a multi-site sample of 236 children (7-18 years old; 50% female) referred by paediatric or mental health providers. Results: DTD (N = 80, 34%) and PTSD (N = 69, 29%) were highly comorbid and shared several DSM-IV internalizing disorder and DSM, 5th Edition (DSM-5) dysregulation disorder comorbidities. However, DTD, but not PTSD, was associated with comorbid panic disorder and disruptive behaviour disorders. On a multivariate basis including all probable DSM-IV disorders and DSM-5 dysregulation disorders, DTD was associated with separation anxiety disorder and attention deficit hyperactivity disorder after controlling for PTSD, while PTSD was associated with major depression and generalized anxiety disorder after controlling for DTD. Conclusions: DTD's comorbidities overlap with but extend beyond those of PTSD to include panic, separation anxiety, and disruptive behaviour disorders. DTD warrants further investigation as a potential diagnosis or a complex variant of PTSD in children, similar to the adult symptoms of disturbances of self-organization in the proposed International Classification of Diseases, 11th revision (ICD-11) complex post-traumatic stress disorder subtype.

Early Neglect and the Development of Aggression in Toddlerhood: The Role of Working Memory

Previous research has provided evidence for the robust relation between maltreatment and the development of externalizing behavior, including aggression. However, less empirical attention has been given to the specific role of neglect. The current study aimed to examine the role of working memory in the association between early neglect and aggression in toddlerhood. Longitudinal data were collected from 89 infants and their biological mothers when the infant was approximately 12, 26, and 38 months old. History of neglect was assessed at 12 months using official Child Protective Service records. Working memory and mental development were assessed at 26 months. Aggression was measured using maternal report at 38 months. Data were analyzed using structural equation modeling, and mediation was tested using 95% asymmetric confidence intervals. Results indicated that infants who experienced neglect exhibited poorer working memory abilities, specifically spatial working memory, and higher rates of aggression in toddlerhood. In addition, spatial working memory mediated the relation between neglect and aggression, suggesting that this may be one promising target for intervention.

Child Maltreatment, Problem Behaviors, and Neighborhood Attainment

Using data from a prospective cohort design study of a group of children with documented histories of abuse and neglect (n = 908) and matched controls (n = 667), this paper examines whether problem behaviors (e.g., prostitution, crime, school problems, and homelessness) in young adulthood explain the link between maltreatment in childhood and living in high-risk neighborhoods in middle adulthood. Problem behaviors were assessed at mean age of 29 and neighborhood characteristics were assessed at mean age of 40. Child maltreatment predicted living in less desirable neighborhoods in middle adulthood. Problem behaviors in young adulthood partially mediated the relationship between childhood maltreatment and residence in less desirable neighborhoods in middle adulthood. The direct paths from child maltreatment to neighborhoods were not significant for Black children. For White children, there was a direct relationship between child maltreatment and living in an economically disadvantaged neighborhood. Problem behaviors were a stronger mediator between child maltreatment and living in more disordered and less socially cohesive neighborhoods for Black children, while the problem behaviors were a stronger mediator for living in more economically disadvantaged and less socially cohesive neighborhoods for White children. Further research is needed to understand these racial differences. Interventions should focus on preventing problem behaviors to minimize the risk of residency in high-risk neighborhoods.

Maltreatment, family environment, and social risk factors: Determinants of the child welfare to juvenile justice transition among maltreated children and adolescents

This study prospectively examines the transition from the child welfare system into the juvenile justice system among 10,850 maltreated children and adolescents and explores how patterns of risks, including severity and chronicity of maltreatment, adverse family environment, and social risk factors, affect service systems transition. Almost three percent of maltreated children and adolescents had their first juvenile justice adjudication within an average of approximately six years of their initial child protective services investigation (CPS). Social risk factors, including a child's age at index CPS investigation (older), gender (boys), and race/ethnicity (Black and Hispanic) significantly predicted the risk of transition into the juvenile justice system. Recurrence of maltreatment and experiencing at least one incident of neglect over the course of the study period also increased the risk of transition into the juvenile justice system. However, subtypes of maltreatment, including physical, sexual, and other types of abuse did not significantly predict the risk of juvenile justice system transition. Finally, family environment characterized by poverty also significantly increased the risk of juvenile justice system transition. These findings have important implications for developing and tailoring services for maltreated children, particularly those at-risk for transitioning into the juvenile justice system.

Neonatal isolation augments social dominance by altering actin dynamics in the medial prefrontal cortex

Social separation early in life can lead to the development of impaired interpersonal relationships and profound social disorders. However, the underlying cellular and molecular mechanisms involved are largely unknown. Here, we found that isolation of neonatal rats induced glucocorticoid-dependent social dominance over nonisolated control rats in juveniles from the same litter. Furthermore, neonatal isolation inactivated the actin-depolymerizing factor (ADF)/cofilin in the juvenile medial prefrontal cortex (mPFC). Isolation-induced inactivation of ADF/cofilin increased stable actin fractions at dendritic spines in the juvenile mPFC, decreasing glutamate synaptic AMPA receptors. Expression of constitutively active ADF/cofilin in the mPFC rescued the effect of isolation on social dominance. Thus, neonatal isolation affects spines in the mPFC by reducing actin dynamics, leading to altered social behavior later in life.