Relations between cyclothymic temperament and borderline personality disorder traits in non-clinical adolescents

ObjectivesThe aim of the present study was to examine the relation between cyclothymic temperament and borderline personality disorder traits in adolescents and to identify a typology of adolescents based on temperamental traits (cyclothymic temperament and BPD traits).Participants and methodsA sample of 312 adolescents completed several questionnaires assessing cyclothymic temperament, borderline personality disorder traits, depressive symptoms, suicidal ideation, antisocial behaviors and frequency of cannabis use.ResultsThe Cyclothymic-Hypersensitive Temperament (CHT) questionnaire and the Borderline Personality Features Scale for Children (BPFS-C) were highly correlated which suggests that these scales may measure the same construct. Factor analyses of the pooled items of both scales yielded two factors, ‘anger–impulsivity’ and ‘affective instability’, both composed half of items from both scales. The relation between these traits and suicidal ideation was fully mediated by depressive symptomatology. Cluster analysis showed that these traits may occur independently and that adolescents with both traits had the highest levels of depressive symptoms, suicidal ideations and antisocial behaviors.DiscussionThe CHT questionnaire and the BPFS-C may measure the same construct which appeared relevant for defining a subgroup of adolescents with high levels of depressive symptoms, suicidal ideations and antisocial behaviors.     

Effects of Early Maternal Separation on Subsequent Reproductive and Behavioral Outcomes in Male Rats

To investigate effects of maternal separation on reproductive and behavioral outcomes, male Wistar rats were separated from their mothers daily for 3 hr (maternal separation; MS) or 0 hr (control) from postnatal day (PND) 1 to 14. Timing of puberty, reproductive parameters, hormone levels, and aggressive behaviors in juvenile and adult rats were examined. Contrary to expectations, there was no effect of maternal separation on any measure of aggression. However, maternal separation altered peripubertal testosterone secretion and increased mean day of preputial separation. In addition, adult MS males demonstrated less total sexual behavior. There was no difference in sperm counts or testosterone levels at necropsy on PND 56 or in adulthood, but seminal vesicle weights were increased in adult MS rats. These results suggest that early life stress may influence hypothalamic-pituitary-gonadal axis development in males, at least during peripuberty.     

Making Sense of Their World: Sensory Reactivity and Novelty Awareness as Aspects of Temperament and Correlates of Social Behaviours in Early Childhood

This study examines the early emergence of sensory reactivity and novelty awareness and their relations to children's behaviours with peers. A total of 260 parents (242 mothers, 18 fathers) and 10 teachers of 260 children (131 male, 129 female; M = 63 months; SD = 8.80; range = 39–81) participated. Structural equation models indicate that sensory reactive children appear to be less social (i.e. prosocial and friendly), more likely to engage in solitary‐active play behaviour, and more prone to utilize instrumental aggression in peer interactions. Children scoring high on novelty awareness tend to be more social (i.e. prosocial, friendly, and control impulses), better able to appropriately and punctually comply with tasks given by teacher, less likely to engage in a number of solitary play behaviours (i.e. solitary passive and solitary active), less likely to utilize instrumental or reactive aggressive strategies, and more likely to dodge negative peer interactions by avoiding bullies. Furthermore, the associations between sensory reactivity/novelty awareness and children's behaviours differ from those of other dimensions of temperament (i.e. activity level and emotionality). This suggests that novelty awareness and sensory reactivity uniquely contribute to our overall understanding of children's temperament and its correlates. Copyright © 2012 John Wiley & Sons, Ltd.     

Maternal Sensitivity: Evidence of Stability across Time,Contexts, and Measurement Instruments

Although maternal sensitivity is widely understood as having a direct impact on the quality of the mother–child relationship, empirical evidence supporting this has been inconsistent, possibly because of varied definitions of the construct and limitations of measurements. The Maternal Behavior Q‐Set (MBQS) appears to be a promising measure of sensitivity, showing associations with attachment security (r = .60) higher than those reported (r = .24) in a highly‐regarded meta‐analysis of other sensitivity measures. The present study aimed to further establish the validity and utility of the MBQS by exploring its consistency with a contingency‐based measure of sensitivity, while also seeking evidence of stability across contexts and times. Seventy‐two mothers and their 10‐month‐olds participated in a procedure that included two episodes of Floor Play and Reunions following maternal differential treatment. Mothers were scored on contingent responsivity and warmth. At 12 months, the dyads underwent the Strange Situation Procedure where sensitivity was assessed using a 72‐item version of the MBQS. The findings revealed the stability of maternal sensitivity across times, contexts, and measures. However, linkages applied only to 10‐month scores from reunion, not play, episodes, supporting Pederson and Moran's (1995) assertion that high‐demand circumstances reveal more meaningful differences in maternal sensitivity. Copyright © 2012 John Wiley & Sons, Ltd.     

Empathy,Perspective Taking and Prosocial Behaviour: The Importance of Parenting Practices

The current study analyzed the relationships among maternal empathy (emotional and cognitive), parenting that encourages the child to take the perspective of others, child cognitive empathy and child prosocial behaviour. Participants were 72 typically developing children (66 Caucasian, six Asian) aged between 47 and 76 months (M = 61.5 months, SD = 8.3 months). Results support the facilitative effect of parenting that encourages the child to take the perspective of others. Thus, the role played by parents in the development of prosocial behaviour extends beyond warm/sensitive/responsive parenting in infancy. Together these forms of parenting are key factors that facilitate the development of prosocial behaviour. Copyright © 2011 John Wiley & Sons, Ltd.     

Maternal aggression in mice: The non-specific nature of the exteroceptive maintenance by young

Five hours of pup removal during early lactation (Postpartum Day 6) reduced maternal aggression in mice, while placement of the dam's entire litter (six pups) or a single pup behind a double wire mesh partition in the homecage maintained aggression at a level identical to that of mothers in direct contact with their young. When placed behind the partition, unfamiliar 6, 13, and 20-day-old pups, but not 30-day-old mice, maintained the behavior as effectively as the dam's own young. The relationship of the findings to communal rearing conditions in the mouse is discussed.     

A tale of four countries: How Bowlby used his trip through Europe to write the WHO report and spread his ideas

Attachment theory, developed by child psychiatrist John Bowlby, is considered a major theory in developmental psychology. Attachment theory can be seen as resulting from Bowlby's personal experiences, his psychoanalytic education, his subsequent study of ethology, and societal developments during the 1930s and 1940s. One of those developments was the outbreak of World War II and its effects on children's psychological wellbeing. In 1950, Bowlby was appointed WHO consultant to study the needs of children who were orphaned or separated from their families for other reasons and needed care in foster homes or institutions. The resulting report is generally considered a landmark publication in psychology, although it subsequently met with methodological criticism. In this paper, by reconstructing Bowlby's visit to several European countries, on the basis of notebooks and letters, the authors shed light on the background of this report and the way Bowlby used or neglected the findings he gathered.     

Are our samples representative? Understanding whether temperament influences infant dropout rates at 3 and 7 months

In this study, we examined whether infant temperament predicted study dropout at 3.5 and 7 months and whether dropout was stable across time. Dropout was measured across four experimental tasks (free-play, ERP, still-face, and eye tracking). Temperament was not related to dropout at either timepoint. Dropout was not stable across time, nor was it stable across tasks. These findings suggest that individual differences in temperament are not systematically related to study completion across experimental tasks with varied requirements. These findings additionally suggest that dropout is not consistent across tasks, which may support the utility of multi-study data collection methods.