Jennifer M. Jenkins

A Longitudinal Study of the Relation between Language and Theory-of-Mind Development.

Fifty-nine 3-year-olds were tested 3 times over a period of 7 months in order to assess the contribution of theory of mind to language development and of language to theory-of-mind development (including the independent contributions of syntax and semantics). Language competence was assessed with a standardized measure of reception and production of syntax and semantics (the Test of Early Language Development). Theory of mind was assessed with false-belief tasks and appearance-reality tasks. Earlier language abilities predicted later theory-of-mind test performance (controlling for earlier theory of mind), but earlier theory of mind did not predict later language test performance (controlling for earlier language). These findings are consistent with the argument that language is fundamental to theory-of-mind development.

Theory of mind development and social understanding

Abstract A cross-sectional, correlational study of 30 children, 3 to 5 years old, investigated relations between their theory of mind development and social interaction, controlling for age and general language ability. Childrens overall performance on 4 standard false belief tasks was associated with their production of joint proposals and explicit role assignments during a 10 minute session of pretend play, False belief task performance was not associated with the childs total amount of pretend play or with a measure of empathic concern. We discuss the significance of an association between a laboratory measure of theory of mind development and childrens behaviour observed in a naturalistic setting. We argue that the description and explanation of childrens theory of mind and social understanding is best pursued through the combined efforts of experimenters and ethologists.

Factors Protecting Children Living in Disharmonious Homes: Maternal Reports

This study investigated factors which were protective to children living in disharmonious homes. The sample was drawn from a representative sample of children aged 9 to 12 who took part in a previous general population study. Semi-structured interviews with both parents were used to assess the quality of the parental marriage. Mothers provided information on childrens emotional and behavioral problems and putative protective factors. Fifty-seven families were in the disharmonious marriage group and 62 were in the harmonious marriage group. Putative protective factors, hypothesized to be beneficial for children, were either an aspect of social support or related to childrens activities. Data were analyzed using a two-way analysis of variance with parental marriage and the putative protective factor as main effects. A differentiation was made between protective factors which interacted with parental marriage and those that acted independently. Factors which interacted with the quality of parental marriage were children having a relationship with an adult outside the family, an activity for which they received much positive recognition, and good sibling relationships. The parent-child relationship was associated with childrens disturbance in both harmonious and disharmonious homes.

Parenting Stress in Families of Children With ADHD A Meta-Analysis

Meta-analyses were conducted to examine findings on the association between parenting stress and ADHD. Predictors comprising child, parent, and contextual factors, and methodological and demographic moderators of the relationship between parenting stress and ADHD, were examined. Findings from 22 published and 22 unpublished studies were included. Results confirmed that parents of children with ADHD experience more parenting stress than parents of nonclinical controls and that severity of ADHD symptoms was associated with parenting stress. Child co-occurring conduct problems and parental depressive symptomatology predicted parenting stress. Parents of children with ADHD experienced no more parenting stress than parents of other clinically referred children. Little difference in parenting stress was found between mothers and fathers, but child gender was a significant moderator of parenting stress, with lower stress levels in samples with higher proportions of girls.

The role of the shared family context in differential parenting.

This article examines the role of the shared family context in understanding differential parental treatment of children. Child-specific and family-context predictors of differential parental positivity and negativity were examined using multilevel modeling in a population of 8,476 children nested in 3,762 families. Child age was the strongest child-specific predictor of positivity and differential positivity. Lower socioeconomic status (SES), marital dissatisfaction, and larger family size were associated with higher levels of differential positivity. There was evidence of potentiation when risks were combined. Childrens temperament was associated with parental negativity and differential negativity. The strength of this association was moderated by SES. Mixed-gender sibships in families with marital dissatisfaction and children in single-parent families received the highest levels of differential negativity. The findings are discussed in the context of shared and nonshared environmental influences on development.

Confidence in Protection: Arguments for a Narrow Definition of Attachment

The origins of current attachment constructs are reviewed. Whereas J. Bowlbys (1969/1982) original theory focused on a biobehavioral safety-regulating system with the parent as the childs primary protector, current usage often encompasses much more, if not all, of the parent-child relationship. As a result, some of J. Bowlbys central ideas have not been adequately tested, and the unique contributions of the theory have been obscured. The authors argue that differentiating protection from general responsivity or good parenting has many advantages. Most important, it will enable researchers to test J. Bowlbys notion that parental protection has a singular role to play in socioemotional development and has implications for attachment assessment and interventions in clinical work with families.

Coping with Parental Quarrels

Childrens reactions to parental quarrels were investigated in a general population sample of children between 9 and 12 years old. One hundred and thirty-nine families participated in the study. Approximately half the children were living in disharmonious families and half were in harmonious families. Mothers and children were interviewed with semistructured interviews to determine how children responded to specific episodes of parental quarrelling. Seventy-one percent of children reported intervening in parental quarrels. A range of other coping strategies was identified: seeking contact with a sibling, confiding in friends, offering comfort to parents after a quarrel, self-blame, seeking information about quarrels, and perceiving beneficial aspects to parental quarrelling. The hypothesis was examined that certain coping strategies would be associated with lower levels of childrens behavioral and emotional problems. Only a weak relationship was found between childrens intervention in parental quarrels and emotional and behavioral problems. No other coping strategies were found to predict childrens disturbance.

The relation between early life adversity, cortisol awakening response and diurnal salivary cortisol levels in postpartum women

Early life adversity has been associated with hypothalamic-pituitary-adrenal (HPA) axis dysfunction in both children and adults. However, in adulthood, most studies have focused on the effects of early adversity on HPA axis stress reactivity rather than the cortisol awakening response or diurnal cortisol profiles. The goal of this study was to examine the cumulative effects of early life adversity on the cortisol awakening response (CAR) and diurnal cortisol profiles in a sample of postpartum women. Ninety women between 2 and 6 months postpartum completed two retrospective reports assessing adverse early life experiences (maltreatment and consistency of care). Eighteen women reported having experienced both parental loss and some form of childhood maltreatment and 36 women reported having experienced one type of early life adversity, either parental loss or maltreatment. HPA axis function was assessed through salivary cortisol collections over two consecutive days for measurement of the cortisol awakening response (n=61) and diurnal cortisol rhythm (n=90). Women who reported experiencing adverse early life experiences exhibited a tendency towards higher levels of awakening cortisol compared to women who reported no adverse early life experiences (p=.07). These higher awakening cortisol levels were sustained throughout the morning in the groups who experienced early adversity, with all groups exhibiting the typical diurnal decline in the afternoon and evening (p<.05). Women reporting early adversity exhibited more heterogeneity in their diurnal cortisol levels across the two collection days (p<.01). Our findings suggest that in a community sample of postpartum women, early adversity is associated with current HPA axis function. These findings may have implications for the nature of mother-infant interactions.

Cultural Differences in the Relationship Between Parenting and Children's Behavior

Parent and teacher data for 14,990 children from the National Longitudinal Survey of Children and Youth were used in multilevel analyses to examine the relationship between ethnicity, childrens aggression and emotional problems, and parenting. Using parent and teacher report, relationships between ethnicity and child behavior were present but modest. The association between parental harshness and child aggression differed between ethnic groups and across informants. Using teacher report of outcomes, parental harshness was positively related to child aggression in European Canadian families but negatively related in South Asian Canadian families. For all ethnic groups, parental harshness was positively related to childrens aggression when parent report of outcomes was used, but relationships varied in strength across ethnic groups. The relationship of parental harshness with child emotional problems did not differ across groups, irrespective of informant. The results are discussed within the context of an ecological model of parenting.

Prenatal maternal mood is associated with altered diurnal cortisol in adolescence

BACKGROUND Experimental animal work shows that prenatal stress has a persisting effect on the hypothalamic-pituitary-adrenal (HPA) axis of offspring. The implications of these findings for human health and development are not yet clear. METHODS The data are based on the ALSPAC cohort, a prospective longitudinal study of a community sample that has followed mothers and children from pregnancy. When the children were aged 15 years, diurnal cortisol samples were collected at wake-up, 30 min post-awakening and at afternoon and evening times on up to three consecutive days on n=889 adolescents. Diurnal cortisol was predicted from prenatal anxiety and depression, obstetric, life-style, socio-demographic, and postnatal covariates. RESULTS Multilevel model analysis indicated that maternal prenatal anxiety was associated with a modest alteration of diurnal cortisol, indexed by a reduced cortisol awakening response and flatter diurnal slope. The effects were independent of psychosocial and obstetric covariates and measures of maternal postnatal anxiety; effects were similar for prenatal maternal depression. There was no association between adolescent cortisol and paternal prenatal anxiety. CONCLUSIONS There are small but persisting associations between maternal prenatal mood and diurnal cortisol in the child that persist into adolescence and may constitute a programming effect.