Adversities in Childhood: Siblings'' Experiences, and their Relations to Self-Esteem

The prevalence and negative impact of life events and adversities over a 3-year period on 80 children participating in a longitudinal study of siblings was examined. The scenarios of 256 events were rated by a child psychiatrist for negative impact on both siblings (aged 6 and 8-10 years, respectively). Only one of the 80 children had not experienced at least one major event. The majority (69%) of life events with negative impact and adversities were not shared by siblings. The relations between the impact of these adversities and children's perceived self-competence, temperament, and their mothers' mood were examined. The number of life events with negative impact was negatively correlated with children's perceived self-competence, an association apparently not mediated by children's temperament nor by maternal mood.     

Case study of an educational intervention to favor siblings’ adaptation during the hospitalization of a preterm infant in the neonatal intensive care unit

Hospitalization of a preterm infant in the Neonatal Intensive Care Unit (NICU) places additional strain on the family and influences the siblings' adaptation. Although it is essential to support the siblings’ adaptation and provide family-centered care in the NICU, sibling involvement is rarely integrated into nursing care. An evidence-based intervention was therefore developed in a level-III NICU and its impact on sibling adaptation was evaluated using a Case study in which three families with a hospitalized infant and siblings between 3 and 12 years old participated. The parents were asked to consult a website and attend a 30-min educational session on issues related to sibling adaptation, and the siblings received a structured introduction to the NICU and visited the preterm infant. All three families were satisfied with the activities, although two parents felt neutral about whether the intervention met their expectations. Overall, the intervention seems to have the potential to facilitate sibling adaptation during the experience of a NICU hospitalization.     

The effects of chronic renal failure on siblings

It is well recognised that chronic illness in children can have a significant effect upon siblings, but their viewpoints need to be sought if we are to change our practice. We conducted semi-structured interviews at home with 15 siblings (8 males) aged 8–12 years whose brother/sister were on chronic dialysis or had received or were waiting for a renal transplant. The interviews were analysed using a grounded theory approach. The children also completed the Spence Childrens Anxiety Scale (SCAS), which revealed no statistically significant evidence that they were exhibiting chronic clinical anxiety. Qualitative data indicated that siblings had a variety of concerns concerning their own health and that of their siblings and worried about the effects on family routine and separation from parents. The siblings felt more protective towards their chronically ill sibling and felt that they themselves needed to be more grown up. The study has implications for our clinical practice in that our psychosocial assessment of families needs to include an assessment of sibling needs and siblings should be involved when preparing patients for chronic renal failure treatment. The importance of maintaining family routines should be emphasised, as well as trying to involve siblings in unit activities.     

Possible contribution of position in the litter huddle to long-term differences in behavioral style in the domestic rabbit

Many aspects of an animal's early development might potentially contribute to long-term individual differences in physiology and behavior. Here we asked whether differences among littermates of the domestic rabbit in the position in the litter huddle that they occupy during the early nest period might contribute to the development of distinct behavioral and physiological phenotypes. In each of 12 litters we determined the pup occupying the most peripheral, the most central, and an intermediate position in the huddle during the first postnatal week. We then tested the responses of these same individuals as nestlings, juveniles and young adults when confronted by a range of age-appropriate environmental challenges. Two behavioral tests appeared particularly discriminatory in identifying differences associated with early position in the huddle; latency of pre-weaning pups to jump down from a shelf, and the response of young adults to the fearful screams of a conspecific. In both cases animals that had occupied the periphery of the huddle showed behavioral responses indicative of a more proactive behavioral style than their “intermediate” or “central” littermates. We conclude that while consistent long-term differences in behavioral style associated with early position in the litter huddle exist in rabbits, future work is needed to confirm the causal nature of this association, to identify underlying mechanisms, and to refine methods of behavioral and physiological testing across the life span.     

Reduced prepulse inhibition in unaffected siblings of schizophrenia patients

We investigated whether prepulse inhibition of the startle response is reduced in siblings of schizophrenia patients compared to age- and sex-matched healthy controls. Nineteen unaffected biological siblings and 19 controls were assessed on prepulse inhibition by monaural and binaural acoustic prepulse stimuli, with the startle stimuli always presented binaurally. There was significantly less prepulse inhibition in siblings, compared to controls, with binaural prepulse stimuli, as also seen previously in schizophrenia patients. The difference between siblings and controls in prepulse inhibition with the left or right ear prepulse stimuli was not significant because of a pronounced increase in prepulse inhibition with monaural, relative to binaural, prepulses in the sibling group. High schizotypal ratings were mildly associated with reduced prepulse inhibition. Prepulse inhibition may provide a useful measure in the search for schizophrenia genes.     

Response to Joint Attention in Toddlers at Risk for Autism Spectrum Disorder: A Prospective Study

Response to joint attention (RJA) is impaired in preschoolers with autism spectrum disorder (ASD) and is pivotal to social and communication development. Response to joint attention was examined at 14 and 24 months in 51 children at high risk for autism (siblings of children with autism). Outcome groups at age 3 years included ASD (n = 16), broader autism phenotype (n = 8), and non-broader autism phenotype (n = 27). The ASD group made minimal improvement in RJA between 14 and 24 months, but stability of RJA across tasks increased for all three groups. Significantly, lower RJA was observed for the ASD group at 24 months. Response to joint attention performance at 14 months predicted ASD outcome. Response to joint attention is an important screening and early intervention target.     

Systems analysis of associations over time between maternal and sibling well-being and behavioral and emotional problems of children with autism

Taking a family systems perspective, several research studies have shown that the family context (especially maternal well-being) predicts psychological adjustment in children with autism. This work has mainly focused on dyadic relationships in the family (especially parent–child reciprocal effects). In the present study, we extended a systems perspective in autism family research to a triad involving the child with autism, their mother, and a sibling, and also adopted a longitudinal design. Mothers from 60 families of children with autism reported on their own depression, and the behavior problems and pro-social behavior of their child with autism and a sibling. Results from longitudinal regression models suggested that earlier levels of maternal depression and sibling pro-social behavior did not have an independent effect on the behavior problems or pro-social behavior of children with autism 2.5–3 years later. Earlier levels of sibling behavior problems were associated with increased behavior problems of the child with autism 2.5–3 years later. Although replication is required, these are the first data to suggest that outcomes for children with autism may be affected by their siblings’ psychological adjustment. The methodology of longitudinal family systems analysis of triadic relationships has important research and practical implications.     

Eye-voice span during rapid automatized naming: evidence of reduced automaticity in individuals with autism spectrum disorder and their siblings

Background

Individuals with autism spectrum disorder (ASD) and their parents demonstrate impaired performance in rapid automatized naming (RAN), a task that recruits a variety of linguistic and executive processes. Though the basic processes that contribute to RAN differences remain unclear, eye-voice relationships, as measured through eye tracking, can provide insight into cognitive and perceptual processes contributing to RAN performance. For example, in RAN, eye-voice span (EVS), the distance ahead the eyes are when articulation of a target item''s label begins, is an indirect measure of automaticity of the processes underlying RAN. The primary objective of this study was to investigate automaticity in naming processes, as indexed by EVS during RAN. The secondary objective was to characterize RAN difficulties in individuals with ASD and their siblings.

Methods

Participants (aged 15–33 years) included 21 individuals with ASD, 23 siblings of individuals with ASD, and 24 control subjects, group-matched on chronological age. Naming time, frequency of errors, and EVS were measured during a RAN task and compared across groups.

Results

A stepwise pattern of RAN performance was observed, with individuals with ASD demonstrating the slowest naming across all RAN conditions, controls demonstrating the fastest naming, and siblings demonstrating intermediate performance. Individuals with ASD exhibited smaller EVSs than controls on all RAN conditions, and siblings exhibited smaller EVSs during number naming (the most highly automatized type of naming). EVSs were correlated with naming times in controls only, and only in the more automatized conditions.

Conclusions

These results suggest that reduced automaticity in the component processes of RAN may underpin differences in individuals with ASD and their siblings. These findings also provide further support that RAN abilities are impacted by genetic liability to ASD. This study has important implications for understanding the underlying skills contributing to language-related deficits in ASD.