Role of two modules controlling the interaction between SKAP1 and SRC kinases comparison with SKAP2 architecture and consequences for evolution.

SRC kinase associated phosphoprotein 1 (SKAP1), an adaptor for protein assembly, plays an important role in the immune system such as stabilizing immune synapses. Understanding how these functions are controlled at the level of the protein-protein interactions is necessary to describe these processes and to develop therapeutics. Here, we dissected the SKAP1 modular organization to recognize SRC kinases and compared it to that of its paralog SRC kinase associated phosphoprotein 2 (SKAP2). Different conserved motifs common to either both proteins or specific to SKAP2 were found using this comparison. Two modules harboring different binding properties between SKAP1 and SKAP2 were identified: one composed of two conserved motifs located in the second interdomain interacting at least with the SH2 domain of SRC kinases and a second one composed of the DIM domain modulated by the SH3 domain and the activation of SRC kinases. This work suggests a convergent evolution of the binding properties of some SRC kinases interacting specifically with either SKAP1 or SKAP2.

Attachment relationship quality with mothers and fathers and child temperament: An individual participant data meta-analysis.

A growing body of research suggests that, compared with single parent-child attachment relationships, child developmental outcomes may be better understood by examining the configurations of child-mother and child-father attachment relationships (i.e., attachment networks). Moreover, some studies have demonstrated an above-chance level chance of concordance between the quality of child-mother and child-father attachment relationships, and child temperament has been offered as a plausible explanation for such concordance. To assess whether temperament plays a role in the development of different attachment network configurations, in this preregistered individual participant data meta-analysis we tested the degree to which the temperament dimension of negative emotionality predicts the number of secure, insecure-avoidant, insecure-resistant, and disorganized attachment relationships a child has with mother and father. Data included in the linear mixed effects analyses were collected from seven studies sampling 872 children (49% female; 83% White). Negative emotionality significantly predicted the number of secure (d = -0.12) and insecure-resistant (d = 0.11), but not insecure-avoidant (d = 0.04) or disorganized (d = 0.08) attachment relationships. Nonpreregistered exploratory analyses indicated higher negative emotionality in children with insecure-resistant attachment relationships with both parents compared to those with one or none (d = 0.19), suggesting that temperament plays a small yet significant role in child-mother/child-father insecure-resistant attachment relationships concordance. Taken together, results from this study prompt a more in-depth examination of the mechanism underlying the small yet significantly higher chance that children with increased negative emotionality have for developing multiple insecure-resistant attachment relationships. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Configurations of mother-child and father-child attachment relationships as predictors of child language competence: An individual participant data meta-analysis.

An individual participant data meta-analysis was conducted to test pre-registered hypotheses about how the configuration of attachment relationships to mothers and fathers predicts children's language competence. Data from seven studies (published between 1985 and 2014) including 719 children (Mage : 19.84 months; 51% female; 87% White) were included in the linear mixed effects analyses. Mean language competence scores exceeded the population average across children with different attachment configurations. Children with two secure attachment relationships had higher language competence scores compared to those with one or no secure attachment relationships (d = .26). Children with two organized attachment relationships had higher language competence scores compared to those with one organized attachment relationship (d = .23), and this difference was observed in older versus younger children in exploratory analyses. Mother-child and father-child attachment quality did not differentially predict language competence, supporting the comparable importance of attachment to both parents in predicting developmental outcomes.

The PPSQ: assessing parental, child, and partner's playfulness in the preschool and early school years.

Introduction: Developmental research has traditionally focused on parenting behaviors such as nurturance and care, due to a focus on mothers' behaviors. Other parenting dimensions such as parental playfulness (i.e., use of creativity, imagination, and humor during parent-child interactions) have comparatively received little attention. Although some measures tap into parents' and children's playfulness, these measures are limited. Indeed, they do not assess multiple domains of playfulness (i.e., both parents' and the child's playfulness) or focus on one specific setting such as children's play with peers. Additionally, existing measures do not consider parents' reactions to their partners' playfulness. To address this gap, we created the Playful Parenting Style Questionnaire (PPSQ), which assesses three domains of playfulness: (a) parental domain, (b) child domain, and (c) partner domain. The current study is part of a validation effort of the PPSQ using a quantitative design. We aimed to explore the structure of the PPSQ by conducting an exploratory factor analysis (EFA) for each domain of playfulness; and assess the construct validity of the PPSQ factors by examining the association between factors and existing measures of playful parenting, child playfulness, and co-parenting. Method: The sample includes 347 parents (294 mothers and 53 fathers) of preschool/school-age children (M = 5.10 years; 182 girls, 127 boys). Parents were mostly White (76%) and from a low socioeconomic risk background. Parents completed a series of online questionnaires including the PPSQ, 3 existing measures of parent playfulness (Parental Playfulness Questionnaire; Adult Playfulness Scale; Challenging Parenting Behavior Scale), 2 existing measures of child playfulness (Child Behavior Inventory; Children's Playfulness Scale), a coparenting instrument (Co-parenting Relationship Scale), and sociodemographic information. Results: The EFA revealed 4 factors for parental playfulness, 1 factor for child playfulness, and 3 factors for partner's playfulness. The construct validity analyses identified multiple associations indicating convergence with existing measures for the parent and partners domain but not the child factor. Discussion: This study allowed for a better understanding of the playful dynamics that occur within a family.

Maternal distress and parenting during COVID-19: differential effects related to pre-pandemic distress?

BACKGROUND: Distinguishing whether and how pre-existing characteristics impact maternal responses to adversity is difficult: Does prior well-being decrease the likelihood of encountering stressful experiences? Does it protect against adversity's negative effects? We examine whether the interaction between relatively uniformly experienced adversity (due to COVID-19 experience) and individual variation in pre-existing (i.e., pre-pandemic onset) distress predicted mothers' pandemic levels of distress and insensitive caregiving within a country reporting low COVID-19 death rates, and strict nationwide regulations. METHOD: Fifty-one Singaporean mothers and their preschool-aged children provided data across two waves. Pre- pandemic onset maternal distress (i.e., psychological distress, anxiety, and parenting stress) was captured via self-reports and maternal sensitivity was coded from videos. Measures were repeated after the pandemic's onset along with questionnaires concerning perceived COVID-19 adversity (e.g., COVID-19's impact upon stress caring for children, housework, job demands, etc.) and pandemic-related objective experiences (e.g., income, COVID-19 diagnoses, etc.). Regression analyses (SPSS v28) considered pre-pandemic onset maternal distress, COVID-19 stress, and their interaction upon post-pandemic onset maternal distress. Models were re-run with appropriate covariates (e.g., objective experience) when significant findings were observed. To rule out alternative models, follow up analyses (PROCESS Model) considered whether COVID-19 stress mediated pre- and post-pandemic onset associations. Models involving maternal sensitivity followed a similar data analytic plan. RESULTS: Pre-pandemic maternal distress moderated the association between COVID-19 perceived stress and pandemic levels of maternal distress (ß = 0.22, p < 0.01) but not pandemic assessed maternal sensitivity. Perceived COVID-19 stress significantly contributed to post-pandemic onset maternal distress for mothers with pre-pandemic onset distress scores above (ß = 0.30, p = 0.05), but not below (ß = 0.25, p = 0.24), the median. Objective COVID-19 adversity did not account for findings. Post-hoc analyses did not suggest mediation via COVID-19 stress from pre-pandemic to pandemic maternal distress. CONCLUSIONS: Pre-existing risk may interact with subsequent perceptions of adversity to impact well-being. In combination with existing research, this small study suggests prevention programs should focus upon managing concurrent mental health and may highlight the importance of enhanced screening and proactive coping programs for people entering high stress fields and/or phases of life.

A meta-analysis of the distribution of preschool and early childhood attachment as assessed in the strange situation procedure and its modified versions.

This meta-analysis synthesized the distribution of attachment classifications as coded with the Cassidy-Marvin Preschool Attachment Coding System and the Main-Cassidy Six-Year-Old System. These systems have extended scholars' capacity to measure differences in the developing child-parent attachment relationship, and its sequelae, beyond the infancy period; however, the global distribution of the attachment categories in these systems, and the potential factors influencing this distribution, remain unknown. The meta-analysis included 97 samples (N = 8,186 children; 55% boys), mostly drawn from North American or European populations (89%; M = 76% White). Results indicated that the distribution of child-mother attachment was 53.5% secure, 14.0% avoidant, 11.0% ambivalent, and 21.5% disorganized/controlling. Moderator analyses showed that rates of security were lower, and rates of disorganization were higher, in samples of at-risk families, specifically when children were exposed to maltreatment. Variations in the procedure also moderated the distribution. The discussion calls for greater unity around methodological practices.

SKAP2 Modular Organization Differently Recognizes SRC Kinases Depending on Their Activation Status and Localization.

Dimerization of SRC kinase adaptor phosphoprotein 2 (SKAP2) induces an increase of binding for most SRC kinases suggesting a fine-tuning with transphosphorylation for kinase activation. This work addresses the molecular basis of SKAP2-mediated SRC kinase regulation through the lens of their interaction capacities. By combining a luciferase complementation assay and extensive site-directed mutagenesis, we demonstrated that SKAP2 interacts with SRC kinases through a modular organization depending both on their phosphorylation-dependent activation and subcellular localization. SKAP2 contains three interacting modules consisting in the dimerization domain, the SRC homology 3 (SH3) domain, and the second interdomain located between the Pleckstrin homology and the SH3 domains. Functionally, the dimerization domain is necessary and sufficient to bind to most activated and myristyl SRC kinases. In contrast, the three modules are necessary to bind SRC kinases at their steady state. The Pleckstrin homology and SH3 domains of SKAP2 as well as tyrosines located in the interdomains modulate these interactions. Analysis of mutants of the SRC kinase family member hematopoietic cell kinase supports this model and shows the role of two residues, Y390 and K7, on its degradation following activation. In this article, we show that a modular architecture of SKAP2 drives its interaction with SRC kinases, with the binding capacity of each module depending on both their localization and phosphorylation state activation. This work opens new perspectives on the molecular mechanisms of SRC kinases activation, which could have significant therapeutic impact.

Attachment Injury Severity, Injury-related Stress, Forgiveness, and Sexual Satisfaction in Injured Adult Partners.

An attachment injury can occur when one partner violates the assumption that they will provide comfort and caring during a moment of increased need. For injured partners, unresolved attachment injuries can underlie an enduring stress reaction and lower relationship satisfaction. However, no research has examined the associations between the perceived severity of the injury and sexual satisfaction, a central component of relationship well-being. In this cross-sectional study, we examined the direct and indirect associations between the perceived severity of the attachment injury and sexual satisfaction via injury-related stress symptoms and levels of forgiveness, in injured partners. A total of 145 adults who reported having experienced an attachment injury in their current relationship completed self-report questionnaires measuring injury severity, event-related stress, forgiveness, and sexual satisfaction. An indirect association between the perceived severity of the attachment injury and sexual satisfaction through higher injury-related stress and lower forgiveness was found via a path analysis. Results suggest that fostering forgiveness and attending to injury-related stress may be key toward sexual satisfaction in couples where a partner reports an attachment injury. Clinical implications of these results are discussed in light of theory and potential treatment strategies for addressing an attachment injury in couple's therapy.

Parental psychological distress and child maladjustment: Exploring the moderating role of sibling relationship quality.

The aim of this study was to investigate whether the quality of the sibling relationship moderates the association between parental psychological distress and child maladjustment (i.e., internalizing and externalizing problems). We extended previous literature by studying mothers and fathers separately and by including an observational measure of the quality of the sibling relationship. Participants were 52 two-parent families from a community sample who had at least two children living at home. Only one child (aged 6-10 years) was targeted for the study and studied in relation to his/her siblings. Mothers and fathers completed a self-reported questionnaire on their psychological distress and individually assessed their child's social-emotional maladjustment. The targeted child's interactions with his/her siblings were observed by independent judges during a home-visit. Results indicate that both maternal and paternal psychological distress are significant predictors of child social-emotional maladjustment. Moderation analyses reveal that children of distressed fathers are at lower risk of social-emotional maladjustment when they engage in highly positive interactions with their siblings. Post hoc analyses suggest that only sibling empathy (not teaching nor companionship) is a significant moderator of the association between paternal psychological distress and child maladjustment. The results of this study provide further evidence of the influence that fathers have in their child's development and highlight the importance of using a systemic family approach to promote children's social-emotional adaptation in the context of parental distress.

Childhood behavioral inhibition and attachment: Links to generalized anxiety disorder in young adulthood.

Generalized anxiety disorder (GAD) is under-treated yet prevalent among young adults. Identifying early risk factors for GAD would contribute to its etiological model and identify potential targets for intervention. Insecure attachment patterns, specifically ambivalent and disorganized, have long been proposed as childhood risk factors for GAD. Similarly, childhood behavioral inhibition has been consistently associated with anxiety disorders in adulthood, including GAD. Intolerance of uncertainty (IU), the tendency to react negatively to uncertain situations, has also been shown to be a crucial component of GAD. Furthermore, maternal anxiety is an important feature of developmental models of anxiety including GAD. Yet, to date, no study has examined, within a comprehensive model, how attachment and behavioral inhibition in childhood, maternal anxiety in adolescence, and IU in emerging adulthood contribute to GAD in adulthood. The present study thus examines these links using a longitudinal design with 62 Canadian participants and their mothers. At age 6, participants' attachment and behavioral inhibition were assessed observationally. Maternal anxiety was measured when participants were 14 years of age. IU and GAD were assessed when participants were 21 and 23 years of age, respectively. Structural equation modeling showed that IU mediates the relationships between behavioral inhibition and GAD, while controlling for maternal anxiety. Ambivalent and disorganized-controlling attachment patterns are also indirectly associated with increased GAD symptoms via greater IU scores. Furthermore, a direct and positive effect of behaviorally disorganized attachment was found on GAD symptoms. This longitudinal study supports integrating attachment, behavioral inhibition, and IU in a model of GAD.

A meta-analysis on observed paternal and maternal sensitivity.

Two meta-analyses were conducted (N = 10,980 child-father dyads) with 93 studies published between 1983-2020, primarily in North America and Europe, on observed parental sensitivity to children (3-180 months; 48% girls; 14% non-White) in partnered mothers and fathers. The first meta-analysis found higher maternal mean levels of observed sensitivity, with a small effect size (d = -.27). Differences between parents were larger with micro coding and triadic/family assessments. Differences narrowed as a function of publication year and were not significant in European samples. The second meta-analysis identified a moderate correlation between observed maternal and paternal sensitivity (r = .23 after adjusting for probable publication bias). Correlations were larger in Middle Eastern samples and with composite sensitivity scales.

Do child-father and child-mother preschool insecure attachment types predict the development of externalizing behaviors in boys and girls during middle childhood?

Past meta-analyses show that both child-mother and child-father attachment insecurity are independently and jointly associated with more externalizing behaviors in children. Little is known, however, on the ways that different types of insecure attachment independently and jointly predict the development of externalizing behaviors over time. Existing work also neglects the impact of children's gender within the context of child-father relationships. The current study addresses these limitations by investigating how insecure type of child-father attachment, child-mother attachment, and their interaction in the preschool years predict boys' and girls' externalizing behaviors in middle childhood, when controlling for children's externalizing behaviors in the preschool years. The sample included 144 preschool-aged children (M = 46.89 months, SD = 8.77, 83 girls) and both of their parents. At Time 1, children completed independent separation-reunion procedures with each parent, which were coded using the Preschool Attachment Rating Scales. At Time 1 and Time 2 (5 years later), mothers and fathers completed the Strengths and Difficulties Questionnaire to report on their children's externalizing behaviors. Results showed no systematic differences in the way that child-mother and child-father attachment predicted the development of externalizing behaviors in boys and girls. Across all children, results identified an interaction of child-father and child-mother ambivalence, by which the presence of ambivalence toward both parents predicted the development of more externalizing behaviors. In addition, child-father controlling-caregiving attachment predicted the development of fewer externalizing behaviors. These results provide insight into the ways that insecure child-father and child-mother attachment predict later socioemotional adaptation. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Profiles of Emotion Dysregulation Among University Students Who Self-Injure: Associations with Parent-Child Relationships and Non-Suicidal Self-Injury Characteristics.

More research is needed to understand the different vulnerability profiles of university students who engage in non-suicidal self-injury (NSSI). This study sought to classify university students (n = 479; 83.8% female) aged 17-25 years (M = 18.77; SD = 1.42) who had engaged in NSSI within the past year into latent profiles based on their self-perceived difficulties in regulating both positive and negative emotions. Independent samples of students who had a past history of NSSI but had not self-injured within the previous year (n = 439; 82.9% females; Mage = 19.03, SD = 1.62) and who had no history of NSSI (n = 1551; 69.9% females; Mage = 19.02, SD = 1.55) were recruited for comparison purposes. Latent cluster analyses revealed three emotion regulation profiles within the NSSI sample-the Average Difficulties (47.4%), Dysregulated (33.0%), and Low Difficulties (19.6%) profiles-each of which differed meaningfully from both comparison samples on mean emotion regulation difficulties. Students across profiles also differed in their self-reported experiences with parents, particularly with fathers (pressure, antipathy, unresolved attachment, psychological control), and in the extent to which they felt alienated from parents. Lastly, students across profiles differed in the frequency, methods, functions, and addictive properties of their NSSI. Findings highlight that university students who self-injure experience distinct patterns of difficulties with emotion regulation, which are associated with variation in parent-child relational risk factors and NSSI outcomes.

The longitudinal and concurrent relationship between caregiver sensitivity and preschool attachment: A systematic review and meta-analysis.

The present study aimed to systematically review and meta-analyze the concurrent and longitudinal relationship between caregiver sensitivity and preschool attachment measured using the Main and Cassidy (1988) and Cassidy and Marvin (1992) attachment classification systems. This review was pre-registered with the International Prospective Register of Systematic Reviews (PROSPERO; Registration Number CRD42017073417) and completed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The present review identified 36 studies made up of 21 samples (N = 3, 847) examining the relationship between caregiver sensitivity and preschool attachment. Eight primary meta-analyses were conducted separately according to the proximity of the assessment of sensitivity to attachment (i.e., concurrent versus longitudinal), operationalization of caregiver sensitivity (i.e., unidimensional versus multidimensional) and attachment categorizations (i.e., secure-insecure versus organized-disorganized). Overall, the meta-analyses revealed higher levels of caregiver sensitivity among caregivers with secure and organized preschoolers, relative to insecure and disorganized preschoolers, respectively. Medium effect sizes (g = .46 to .59) were found for both longitudinal and concurrent associations between caregiver sensitivity and preschool attachment when a unidimensional measure of caregiver sensitivity was employed, compared to small to medium effect sizes (g = .34 to .49) when a multidimensional measure of caregiver sensitivity was employed. Child age at attachment measurement was a significant moderator of the longitudinal association between unidimensional caregiver sensitivity and preschool attachment. Future directions for the literature and clinical implications are discussed.

Maternal expressions of positive emotion for children predicts children's respiratory sinus arrhythmia surrounding stress.

The aim of this study is to assess whether positive emotional exchanges (i.e., emotion coregulation) within the mother-child dyad play a protective role in children's physiological response to a distressing task. Specifically, we test whether positive emotion coregulation among mothers and their preschool-aged children is associated with children's respiratory sinus arrhythmia (RSA) at baseline, during, and following a frustration task. One hundred Singaporean mother-child dyads (Mchildage  = 3.5 years) participated in a standardized "Laughing Task" in which positive emotional constructs were measured. Children also participated in a frustration task while RSA was continuously monitored. Hierarchical linear regressions revealed that greater maternal positive emotional responses to children were associated with child RSA at baseline and in recovery from frustration, but not during frustration. These findings have implications for the important role that positive emotion responsivity from mothers may play in children's developing autonomic response systems, and underscore the need for longitudinal work on this topic.

Configurations of mother-child and father-child attachment as predictors of internalizing and externalizing behavioral problems: An individual participant data (IPD) meta-analysis.

An unsettled question in attachment theory and research is the extent to which children's attachment patterns with mothers and fathers jointly predict developmental outcomes. In this study, we used individual participant data (IPD) meta-analysis to assess whether early attachment networks with mothers and fathers are associated with children's internalizing and externalizing behavioral problems. Following a pre-registered protocol, data from 9 studies and 1,097 children (mean age: 28.67 months) with attachment classifications to both mothers and fathers were included in analyses. We used a linear mixed effects analysis to assess differences in children's internalizing and externalizing behavioral problems as assessed via the average of both maternal and paternal reports based on whether children had two, one, or no insecure (or disorganized) attachments. Results indicated that children with an insecure attachment relationship with one or both parents were at higher risk for elevated internalizing behavioral problems compared with children who were securely attached to both parents. Children whose attachment relationships with both parents were classified as disorganized had more externalizing behavioral problems compared to children with either one or no disorganized attachment relationship with their parents. Across attachment classification networks and behavioral problems, findings suggest (a) an increased vulnerability to behavioral problems when children have insecure or disorganized attachment to both parents, and (b) that mother-child and father-child attachment relationships may not differ in the roles they play in children's development of internalizing and externalizing behavioral problems.

Longitudinal and concurrent relationships between caregiver-child behaviours in the vaccination context and preschool attachment.

ABSTRACT: This article consists of 2 separate studies in which the overarching aim was to examine the relationships between caregiver-child behaviours in the vaccination context (infant and preschool) and preschool attachment outcomes. It provides for the first time an examination of acute pain behaviours during early childhood and how it relates to a critical aspect of child development (ie, attachment status) at the end of early childhood. Study 1 examined the longitudinal relationships between caregiver-infant behaviours during infants' first routine vaccination (2 months) and preschool attachment (n = 84). Study 2 examined the concurrent relationships between caregiver-preschooler behaviours during the last routine vaccination of preschool (4-5 years) and preschool attachment (n = 117). Hierarchical multiple regression analyses were used. Although there were several nonsignificant findings, the results revealed that higher caregiver sensitivity and higher proximal soothing 1 minute before the needle during infants' 2-month vaccinations predicted higher levels of preschooler avoidance and lower levels of preschooler ambivalence, respectively. In addition, higher infant pain-related distress at 2 minutes after the needle was related to higher preschooler security and lower preschooler disorganization and controlling-punitive attachments. In terms of concurrent relationships, only caregiver sensitivity was significantly related to preschool attachment outcomes. Specifically, higher caregiver sensitivity at preschoolers' 4- to 5-year vaccinations was related to higher preschooler attachment security. The study findings provide evidence that child-caregiver behavioural patterns during the infant and preschool routine vaccination relate to preschoolers' patterns of attachment. Moreover, it underscores the potential importance of health professionals teaching and supporting attuned caregiving to the child in pain.

Developmental and attachment-based perspectives on dissociation: beyond the effects of maltreatment.

Background: Numerous years of theory and research have informed our understanding of the caregiving experiences that confer vulnerability for dissociation. This work has resulted in widespread agreement on the role of childhood maltreatment as an aetiological factor. Objective: With clear integration of this perspective, the current paper draws attention to the spectrum of vulnerability that can exist over and above the trauma of maltreatment within early caregiving experiences. Method: An integrative review of the developmental literature on dissociation is presented. Results: We first review and integrate existing developmental theories of dissociation into a more unified perspective, highlighting a combination of defensive and intersubjective pathways towards dissociative outcomes. Next, we present empirical research demonstrating which specific caregiving experiences are associated with dissociation. Lastly, we review recent neurodevelopmental research demonstrating that (non-extreme) caregiving stressors during infancy impact the developing limbic structures in the brain. We conclude by offering directions for future research. Conclusion: Findings make the case for approaching assessments of the caregiver-child relationship with discernment of factors beyond the presence/absence of maltreatment when conceptualizing risk pathways toward dissociation.

Antecedentes: Varios años de teoría, investigación y avances clínicos sustentan nuestra comprensión de experiencias particulares en el cuidado temprano que confieren vulnerabilidad para la disociación. Este trabajo ha dado lugar a un acuerdo generalizado sobre el papel del maltrato infantil como un factor etiológico.Objetivo: Con una clara integración de esta perspectiva, el presente artículo enfatiza el espectro de vulnerabilidad que puede existir más allá del trauma que constituye el maltrato dentro de las experiencias de cuidado tempranas.Método: Se presenta una revisión integradora de la literatura del desarrollo sobre la disociación.Resultados: Primero, revisamos e integramos las teorías del desarrollo existentes sobre la disociación en una perspectiva más unificada, resaltando una combinación de vías defensivas e intersubjetivas que resultan en disociación. Luego, presentamos una investigación empírica que demuestra qué experiencias específicas en el cuidado temprano están asociadas con la disociación. Finalmente, revisamos una investigación reciente en neurodesarrollo que demuestra que los estresores (no extremos) durante el cuidado en lainfancia impactan el desarrollo de las estructuras límbicas del cerebro.Conclusión: Los hallazgos justifican abordar las evaluaciones de la relación cuidador-niño con el discernimiento de factores más allá de la presencia/ausencia de maltrato al conceptualizar las vías de riesgo de disociación.

Aspects of Parent-Child Interaction from Infancy to Late Adolescence Are Associated with Severity of Childhood Maltreatment through Age 18.

Childhood maltreatment (CM) is a pervasive public health problem worldwide, with negative health consequences across the lifespan. Despite these adverse outcomes, identifying children who are being maltreated remains a challenge. Thus, there is a need to identify reliably observable features of parent-child interaction that indicate risk for CM and that can instigate strategically targeted family supports. The aim of this longitudinal study was to assess multiple aspects of observed mother-child interaction from infancy to late adolescence as risk indicators of the overall severity of CM by age 18. Mother-child dyads were assessed in infancy (N = 56), at age 7 years (N = 56), and at age 19 years (N = 56/110). Severity of CM through age 18 was indexed by combined prospective and retrospective assessments. Interactions associated with severity of CM by age 18 included maternal hostility in infancy, maternal withdrawal in infancy and middle childhood, child disorganized attachment behavior in middle childhood and late adolescence, as well as hostile and role-confused interactions in late adolescence. This study identifies new indices of maternal and child behavior as important risk indicators for the severity of CM. These indices could be used to improve early identification and tailor preventive interventions for families at risk for CM.

The contributions of child-mother attachment, maternal parenting stress, and military status to the prediction of child behavior problems.

Studies show that children with a military parent are at heightened risk of the development of behavior problems. However, there is limited work examining how other factors experienced by military families may also influence behavior problems. In the current study, we recruited three types of Canadian families with a preschooler: families with a deployed military member, families with a nondeployed military member, and nonmilitary families. We examined whether the nonmilitary parent's (in all cases the mother) parenting stress and attachment relationship with the child are associated with behavior problems, and whether deployment status further contributes to the prediction. Child-mother dyads participated in an observed attachment assessment, and mothers reported on their stress levels and their child's behavior. Results showed that both child attachment insecurity and parenting stress were associated with elevated levels of internalizing problems; however, only parenting stress was associated with conduct problems. Military deployment predicted higher levels of internalizing and conduct problems beyond the contributions of attachment and stress. Furthermore, having a father in the military (whether deployed or not) also contributed to internalizing problems. These findings shed light on how the military lifestyle impacts early childhood mental health through the complex interplay between various parts of their environment.

Los estudios muestran que los niños con un progenitor en las fuerzas armadas se encuentran a un más alto riesgo para desarrollar problemas de comportamiento. Sin embargo, es limitado el trabajo que examina cómo otros factores experimentados por familias con miembros en las fuerzas armadas pudieran también influir en los problemas de comportamiento. En el presente estudio, reclutamos tres tipos de familias con un niño en edad prescolar: familias en las que un miembro había sido enviado al servicio militar activo; familias con un miembro que no había sido enviado al servicio militar activo, y familias sin un miembro en las fuerzas armadas. Examinamos si el estrés de la crianza del progenitor no miembro de las fuerzas armadas (en todos los casos la madre) y la relación de afectividad con el niño están asociadas con los problemas de comportamiento, y si la condición de haber sido enviado al servicio militar activo contribuye aún más a esta predicción. Las díadas madre-niño participaron en una evaluación observada de la afectividad, y las madres reportaron acerca de sus niveles de estrés y el comportamiento de sus niños. Los resultados mostraron que tanto la inseguridad de la afectividad en el niño como el estrés de la crianza estaban asociados con niveles elevados de problemas de internalización, sin embargo, sólo el estrés de la crianza estaba asociado con problemas de comportamiento. El hecho de ser enviado al servicio militar activo predijo más altos niveles de problemas de internalización y de comportamiento más allá de lo que contribuye la afectividad y el estrés. Es más, el tener un papá en las fuerzas armadas (ya sea que haya sido enviado al servicio militar activo o no), también contribuye a problemas de internalización. Estos resultados arrojan luz sobre cómo el estilo de vida de estas familias con un miembro de las fuerzas armadas impacta la salud mental en la temprana niñez a través de la compleja interacción entre varias partes de su entorno. Palabras claves: fuerzas armadas, asignación al servicio militar activo, afectividad, problemas de comportamiento, estrés de crianza.

Les études montrent que les enfants dont l'un des parents est dans les forces armées sont à un risque bien plus élevé de développer des problèmes de comportement. Cependant peu de recherches examinent comment d'autres facteurs dont font l'expérience les familles de militaires peuvent également influencer les problèmes de comportement. Dans cette étude nous avons recruté trois types de familles ayant un d'enfant d'âge préscolaire (avant la grande maternelle): des familles dont l'un des membres est un militaire déployé, des familles avec un membre militaire n'étant pas déployé, et des familles non-militaires. Nous avons examiné si le stress de parentage du parent non-militaire (dans tous les cas la mère) et la relation d'attachement avec l'enfant étaient liés aux problèmes de comportement, et si le statut de déploiement contribue plus à la prédiction. Les dyades enfant-mère ont participé à une évaluation d'attachement observée, et les mères ont fait état de leurs niveaux de stress et du comportement de leurs enfants. Les résultats ont montré qu'à la fois l'insécurité de l'attachement de l'enfant et le stress de parentage était lié à des niveaux élevés de problèmes d'internalisation. Cependant, seul le stress de parentage était lié à des problèmes de comportement. Le déploiement militaire prédisait des niveaux d'internalisation plus élevés et des problèmes de conduite au delà des contributions à l'attachement et au stress. De plus, le fait d'avoir un père dans les forces armées (qu'il soit déployé ou non) contribuait aussi aux problèmes d'internalisation. Ces résultats mettent en lumière la manière dont le style de vie militaire impacte la santé mentale de la petite enfance au travers d'une interaction complexe entre les différentes parties de leur environnement. Mots clés: militaire, déploiement, attachement, problèmes de comportement, stress de parentage.