The data for 197 mother–infant pairs from two longitudinal studies were analyzed to assess relations between maternal attachment representations; atypical maternal behavior, coded with a new tool, Atypical Maternal Behavior Instrument for Assessment and Classification (AMBIANCE), and infant attachment. Both maternal and infant attachment were systematically related to atypical maternal behavior: mothers who were Unresolved on the Adult Attachment Interview and those whose infants were disorganized in the Strange Situation Procedure engaged in more atypical behaviors than those who were not Unresolved and whose infants showed organized patterns of attachment, respectively. Regression analyses indicated that when tested as a mediator, atypical maternal behavior as measured on the AMBIANCE did not reduce the association between maternal Unresolved status and infant disorganized attachment. This may, in part, reflect the fact that our low-risk sample did not include enough cases in the risk categories. These data provide preliminary empirical validation for the AMBIANCE and strengthen the evidence for links between atypical maternal behavior and disorganized attachment but indicate that in addition to maternal attachment representations, other factors must contribute to atypical maternal behavior.

There is little documentation of how and when joint attention emerges in blind infants because the study of this ability has been predominantly reliant on visual information. Ecological self-knowledge, which is necessary for joint attention, is impaired in blind infants and is evidenced by their reaching for objects on external cues, which also marks the beginning of their Stage 4 understanding of space and object. Entry into Stage 4 should occur before joint attention emerges in these infants. In a case study of two totally blind infants, the development of joint attention was longitudinally examined during Stage 4 in monthly sessions involving interactions with objects and familiar adults. The interactions were scored for behavior preliminary to joint attention, behavior liberally construed as joint attention, and behavior conservatively construed as joint attention. Behavior preliminary to joint attention occurred throughout Stage 4; behavior suggestive of joint attention by both liberal and conservative standards emerged initially in Stage 4 and became prevalent by mid to late Stage 4. The findings are discussed in terms of how they inform our thinking about the development of joint attention with respect to the importance of vision, cognition, social context, language, and early self-knowledge.

The nature of mother–child interaction in autism and the maternal approach characteristics that elicit social response in children with autism were examined in two studies. Mother–child play sessions of 24 preschool children with autism and 24 typically developing preschoolers were compared in Study 1, and play sessions of 9 mothers with their autistic child and with their nonautistic child were compared in Study 2. Mother–child interactions were coded using the Approach Withdrawal Interaction Coding System to quantify maternal approach behaviors and child responses. Results of Study 1 indicate that, although the quantity of approaches did not differ between mothers with their autistic children and mothers with their nonautistic children, there were qualitative differences. Mothers used more physical contact, more high-intensity behaviors, and fewer social verbal approaches with autistic children. Results of Study 2 replicated these findings with mothers showing a similar pattern of approach toward their autistic children but not their nonautistic children. Although autistic children displayed lower contingency to maternal approaches in general, they showed greater responsiveness to approaches involving increased physical proximity and/or containing nonverbal object use. Mothers socially engaged both autistic and nonautistic children. The implications for parent training and intervention are discussed.

Research suggests that exposure to extreme stress in childhood, such as domestic violence, affects children's neurocognitive development, leading to lower intelligence. But studies have been unable to account for genetic influences that might confound the association between domestic violence and lower intelligence. This twin study tested whether domestic violence had environmentally mediated effects on young children's intelligence. Children's IQs were assessed for a population sample of 1116 monozygotic and dizygotic 5-year-old twin pairs in England. Mothers reported their experience of domestic violence in the previous 5 years. Ordinary least squares regression showed that domestic violence was uniquely associated with IQ suppression in a dose–response relationship. Children exposed to high levels of domestic violence had IQs that were, on average, 8 points lower than unexposed children. Structural equation models showed that adult domestic violence accounted for 4% of the variation, on average, in child IQ, independent of latent genetic influences. The findings are consistent with animal experiments and human correlational studies documenting the harmful effects of extreme stress on brain development. Programs that successfully reduce domestic violence should also have beneficial effects on children's cognitive development.

This study evaluated the role of attentional shifting in children's prosocial behavior with peers. Participants were 27 aggressive/rejected and 27 nonaggressive/popular kindergarten and first grade boys and girls. Children's ability to shift attention from one affective state to another was assessed during: (a) a computerized task that required shifting attention between different affective events (i.e., the Children's Attentional Shifting Task, CAST) and (b) an analogue entry task with unacquainted peers. Children's latency for sharing with peers was assessed after they experienced failure during the entry task. Aggressive/rejected children had significant difficulty shifting attention from negative to positive affect during the CAST and were slower to share after experiencing entry failure. In general, aggressive/rejected children were less able to regulate their behavior effectively after experiencing social failure. Girls, regardless of status, had less difficulty than boys shifting attention from one affective state to another during the CAST. In addition, children's social status/aggressiveness, their ability to regulate emotional behavior after social failure and to shift attention effectively on the CAST predicted approximately 31% of the variance in their latency to share. These findings suggest that the ability to shift attention between different affective states plays a significant role in children's prosocial behavior with peers.

In this longitudinal study, we examined the relations between emotion knowledge in first grade, teacher reports of internalizing and externalizing behaviors from first grade, and children's self-reported internalizing behaviors in fifth grade. At Time 1, we assessed emotion knowledge, expressive vocabulary, caregiver-reported earned income, and teacher-rated internalizing and externalizing behaviors in 7-year-old children from economically disadvantaged families (N = 154). At Time 2, when the children were age 11, we collected children's self-reports of negative emotions, depression, anxiety, and loneliness. First grade teacher-reported externalizing behaviors, but not first grade internalizing behaviors, were positively related to children's self-reports of internalizing behaviors in fifth grade. First grade emotion knowledge accounted for a significant amount of variance in children's self-reports of internalizing symptoms 4 years later, after controlling for per capita earned income, expressive vocabulary, and teacher-reported internalizing and externalizing behaviors in first grade.

Our objective is to advance the life course analytical framework by demonstrating a model for testing two of its tenets. The first is whether the individual's developmental history conditions the response to a turning point event. The second is whether the influence of a major life event upon an individual's developmental course depends upon the timing of the event. We test both propositions in an analysis of the effect of grade retention on a child's trajectory of physical aggression. Our analysis is based on data from a longitudinal study of 1,037 boys from schools in the lowest socioeconomic areas in Montreal, Canada. We find clear evidence that a developmental history of physical aggression conditions the child's response to grade retention. The evidence on whether the timing of retention affects this response is less clear.

Self-perceptions of parent–child relationship quality were examined for 142 boys with attention-deficit/hyperactivity disorder (ADHD) and 55 control boys. Parent perceptions were examined as well. Mothers and fathers of ADHD boys perceived their relationships with their children more negatively than mothers and fathers of control boys. Interestingly, despite these differences in parental perceptions, ADHD boys did not differ from control boys in their perceptions of their relationships with their parents. Further, when ADHD boys' perceptions were compared directly to those of their parents, ADHD boys' reports were positively enhanced relative to those of control parent–child dyads. Together, these results may be viewed as providing support for a positive illusory bias in the social self-perceptions of ADHD children.

Developmental studies of antisocial behavior (ASB) have found two subgroups of behaviors, roughly described as aggressive and nonaggressive ASB. Theoretical accounts predict that aggressive ASB, which shows greater stability, should have high heritability. In contrast, nonaggressive ASB is very common in adolescence, shows less continuity, and should be influenced both by genes and shared environment. This study explored the genetic and environmental influences on aggressive and nonaggressive ASB in over 1,000 twin pairs aged 8–9 years and again at 13–14 years. Threshold models were fit to the data to incorporate the skew. In childhood, aggressive ASB was highly heritable and showed little influence of shared environment, whereas nonaggressive ASB was significantly influenced both by genes and shared environment. In adolescence, both variables were influenced both by genes and shared environment. The continuity in aggressive antisocial behavior symptoms from childhood to adolescence was largely mediated by genetic influences, whereas continuity in nonaggressive antisocial behavior was mediated both by the shared environment and genetic influences. These data are in agreement with the hypothesis that aggressive ASB is a stable heritable trait as compared to nonaggressive behavior, which is more strongly influenced by the environment and shows less genetic stability over time.

Most researchers and clinicians now agree that children and adolescents are able to develop depressive disorders, and there also appears to be consensus that developmental level has relatively little influence on the phenomenology of the depression. The present paper examines the validity of this latter assumption from methodological, theoretical, and empirical perspectives. We first review reasons why there might be developmental differences in the symptoms that define depression, and then discuss the implications and significance if such differences do or do not exist. Next, we highlight methodological and design issues relevant to the appropriate evaluation of this question. Then, we propose that this broad developmental question actually is comprised of two subquestions—one focusing on symptoms and the other focused at the syndrome level—that have not yet been clearly differentiated in the field. Finally, after conducting a meta-analysis of the current empirical literature and reviewing its limitations, recommendations are made regarding future research in this area.

Individual differences in salivary testosterone were examined in 213 adolescents (106 boys, 107 girls; mean age = 13.66 years) in relation to externalizing and internalizing psychopathology. Self- and parent-report measures of behavior problems and psychiatric symptoms were obtained. Latent anxiety–depression, disruptive behavior, and attention problem constructs were developed using multitrait, multimethod procedures. Saliva samples were collected in the morning, midday, and late afternoon on multiple days and were later assayed for testosterone. Latent constructs were derived for testosterone level and diurnal variation across the six sampling occasions. Structural equations modeled relationships between problem behavior and intra- and interindividual differences in testosterone separately by gender. For boys, lower levels of testosterone and testosterone levels that decreased more slowly across the day were related to higher levels of anxiety–depression and attention problems. These associations were not moderated by pubertal development. For girls, steep declines in testosterone production across the day related to higher levels of disruptive behavior problems, but this association was only evident after including pubertal development as a moderator in the model. These findings raise novel questions regarding the nature and magnitude of links between testosterone and problem behavior in youth.

A diathesis-stress interaction model is used to describe multifinality in adolescent internalizing and risky behavioral outcomes. Problematic behavior associated with adolescent insecure preoccupation (a diathesis) was expected to interact with the level of maternal autonomous discourse (a stressor) to predict specific adolescent outcomes. Assessments of adolescent preoccupied attachment organization, observations of maternal displays of autonomy in mother–adolescent interactions, and adolescent reports of internalizing symptoms and risky behaviors were obtained at age 16. As predicted, maternal autonomy in the mother–adolescent relationship helped to explain multifinality in dysfunctional symptoms among preoccupied adolescents. Adolescent preoccupation was more strongly linked to internalizing behavior when mothers demonstrated low levels of autonomy in interactions with their adolescents and more strongly linked to risky behavior when mothers displayed extremely high levels of autonomy. Implications for autonomy processes in increasing our understanding of how adolescent insecure–preoccupation relates to profiles of specific problems during adolescence are discussed as is the importance of exploring the role of attachment in different contexts.

The current study examined the course of depressive symptoms of young men from early adolescence through young adulthood using a growth model approach and the influence of early parental (i.e., depressive symptoms, antisocial behaviors, substance use) and contextual (i.e., family income and parental marital transitions) risk factors on both the level of depressive symptoms in early adolescence and on changes over a 10-year period, controlling for young men's early antisocial behavior. On average, depressive symptoms of the youths tended to decrease slightly as they reached young adulthood. Among the parental and contextual risk factors, parent's marital transitions was the most significant predictor for the level of depressive symptoms in early adolescence. Parent's marital transitions and family income were also significantly related to changes in depressive symptoms. As hypothesized, there was a significant interaction effect of paternal and maternal depressive symptoms on depressive symptoms in early adolescence and on changes over time. Maternal depressive symptoms were related to the son's depressive symptoms only when the father's depressive symptoms were also high. The results also suggested that parenting practices did not mediate the effects of the parental and contextual risk factors on the development of depressive symptoms among young men.