Influences on communicative development at 24 months of age: child temperament, behaviour problems, and maternal factors

Within a longitudinal study using a large representative, community sample of infants recruited at mean age 8 months, we examined influences on infant communication development at 24 months, including child gender, shy temperament, behavioural and emotional problems, and several variables relating to maternal psychosocial health. On most developmental measures girls were in advance of boys and they also showed shyer temperament. Child gender, shy temperament and maternal psychosocial indices were associated with both vocabulary development as measured by the MacArthur-Bates Communicative Development Inventory (CDI), and communication and symbolic development assessed via the Communication and Symbolic Behaviour Scales-Developmental Profile (CSBS) at 24 months. No prediction was found using scores at 8 or 12 months, although moderate stability between measures between 12 and 24 months was evident. Predictors of 24 month outcomes were all concurrently measured variables, and included temperamental shyness, but very little variance in communication outcomes was explained. Children whose mothers were experiencing clinical levels of depression and life difficulties reported more child behavioural problems.     

Transactional development of parent personality and child temperament

Stability and change in parental extraversion and neuroticism were studied in transaction with their views of their child's temperament from the age of six months to the age of five‐and‐a‐half years in 109 mother–father–child triads (parent–daughter: n = 61, parent–son: n = 48). While parental traits showed high stability, infants' higher positive affectivity predicted an increase in parental extraversion over 5 years, and infant's higher activity predicted a decrease in parental neuroticism. Parent‐rated temperament showed expected heterotypic continuity. Initially higher parental extraversion predicted an increase in the child's effortful control, and higher parental neuroticism predicted an increase in the child's negative affectivity. The results indicate that parental personality and child temperament develop in transaction promoting change in each other. Copyright © 2008 John Wiley & Sons, Ltd.     

Early manifestations of childhood depression: influences of infant temperament and parental depressive symptoms

In this longitudinal study, 83 parents of infants between 3 and 12 months completed questionnaires assessing demographic information, infant temperament, and maternal depression. When these children were at least 18 months of age, parents completed follow‐up questionnaires assessing toddler temperament and depression‐like symptoms. We were primarily interested in the contributions of infant temperament and maternal depression to toddler depressive problems, and the analytic strategy involved controlling for toddler temperament in order to isolate the influence of infancy characteristics. The findings indicated that lower levels of infant regulatory capacity and greater severity of maternal depression were predictive of toddler depression‐like symptoms. Moderator effects of infant temperament were also examined, with the negative affectivity * maternal depression interaction emerging as significant. Follow‐up analyses indicated that the risk for early manifestations of depression was attenuated for children with lower negative affectivity in infancy and parents who reported lower levels of their own depressive symptoms; conversely, children exhibiting higher infant negative emotionality had higher levels of depression‐like symptoms as toddlers, regardless of their parents' level of depression. The present findings further suggest that parental depressive symptoms need not be ‘clinically significant’ to predict toddler affective problems. Copyright © 2008 John Wiley & Sons, Ltd.     

投入不足对基层孕产妇保健服务提供的影响

投入不足是影响我国孕产妇保健服务提供的重要因素。通过对项目县的服务提供者和妇幼卫生关键知情人访谈资料的分析,描述服务提供网络及现有资源状况,认为投入不足通过乡镇卫生院院长的重视和支持程度、妇幼专干和村医的工作积极性、人力资源的改善以及设备和设施的改进等六个方面阻碍了孕产妇保健服务的提供。     

The interplay among temperament,neuropsychological abilities,and global functioning in young hyperactive/inattentive children

Cognition and emotion have been shown to interact and influence psychological functioning. However, to date these interactions have only been examined cross‐sectionally among inattentive and/or hyperactive/impulsive children. This study investigated the moderating effects of neuropsychological functioning at age 3–4 years on the relation between negative emotionality at age 3–4 years and global functioning 1 year later, at age 4–5 years. Hyperactive/inattentive (H/I; n = 114) preschoolers entered the study (BL: baseline) and were seen again 1 year later (F1). Children's BL scores on a neuropsychological test (NEPSY) and their temperament as rated by parents (Child Behavior Questionnaire) and teachers (Temperament Assessment Battery for Children‐Revised) were obtained, as were clinicians’ ratings of their global functioning (Children's Global Assessment Scale) at F1. Hierarchical linear regression analyses revealed that BL temperament variables accounted for significant variance in F1 Global Functioning. Significant interactions indicated that higher Verbal Executive abilities were associated with better child functioning when parent‐rated Effortful Control was high, but not when Effortful Control was low. Additionally, high levels of Nonverbal Executive skills were associated with higher child global functioning when both parent‐ and teacher‐rated negative affect was low, but not when negative affect was high.     

Maternal aggression in mice: Protection of young is a by-product of attacks at the home site

Lactating female mice attacked male intruders in their home cages but showed little attack behavior either in novel cages or in cages with which they had been familiarized. Presence or absence of young did not determine the occurrence of maternal aggression, whereas attacks on the young by the intruder decreased maternal aggression and increased cannibalism of pups by the dams. Apparently, if the function of maternal aggression in mice is protection of the young, such protection occurs because the pups are in a place where attacks are likely to occur and not because the dam “defends” the young.     

Infanticide and maternal aggression: Synchrony of male and female reproductive strategies in mice

Thirty-six percent of male mice from three strains attacked newborn pups sired by another male. No male attacked its own offspring. Females did not show differential aggression toward males likely (strangers) or unlikely (sires) to attack their pups. Both forms of aggression were unaffected by housing in rooms which did or did not contain the aggression targets. The three strains differed in strength of maternal aggression but not in the incidence of infanticide. Females showed more aggression when mated with males of the same, rather than a different, strain but no differences with intruders of the same or a different strain. Infanticide by males is best viewed as a postcopulatory, intermale-competition strategy, and maternal aggression as a counter strategy.     

Maternal verbal interaction in different situations with infants born prematurely or at term

The present study investigates whether maternal verbal behaviour, in terms of the use of declaratives, interrogatives and imperatives, can be accounted for by gestational age of the infant, or the situation in which mother–infant pairs were observed. Thirteen mothers and their premature and term babies were observed twice in three situations, namely playing with, feeding and changing their infants. The first observation took place at a mean gestational age of 40 weeks and the second observation took place approximately 7 weeks later. All mothers used more imperatives during play than during changing or feeding situations. Mothers used more interrogatives during play than during changing or feeding, and they used more declaratives during both changing and playing than during feeding. In contrast, gestational age influenced only the complexity of maternal interrogatives. It is concluded that situational factors are significant and hence that the mother's role has to be judged relative to the context in which mothers and infants are observed. Copyright © 1999 John Wiley & Sons, Ltd.     

母亲消极情绪表露与儿童焦虑的关系：有调节的中介模型

本研究以临沂市3所小学1173名一至六年级的学生及其母亲为被试,探讨了母亲消极情绪表露与儿童焦虑的关系,以及母子冲突和母子亲密在这一关系中的作用。采用家庭情绪表露问卷、亲子关系问卷、儿童焦虑性情绪障碍筛查表进行研究。结果表明：(1)母亲消极情绪表露与母子冲突、儿童焦虑两两显著正相关,母子亲密与母亲消极情绪表露、母子冲突、儿童焦虑的相关不显著;(2)母亲消极情绪表露显著正向预测儿童焦虑;(3)母子冲突在母亲消极情绪表露与儿童焦虑间起中介作用,且上述中介效应的后半段路径受到母子亲密的调节。