Sustained attention development during the toddlerhood to preschool period: associations with toddlers' emotion regulation strategies and maternal behaviour

The current study examined the role of maternal behaviour and toddlers' emotion regulation strategies in the development of children's sustained attention abilities. Participants for this study included 447 children (232 girls) obtained from three different cohorts participating in a larger ongoing longitudinal study. When the children were 2 years of age, mothers brought their children to the laboratory and were videotaped during several tasks designed to elicit emotion regulation and mother–child interaction. Sustained attention was also measured at the same visit via a laboratory task and in a subsequent visit when children were 4.5 years of age. Results indicated that toddlers' use of help‐seeking emotion regulation strategies was positively related to sustained attention, while avoidance behaviours and maternal behaviour characterized by high levels of overcontrolling/intrusiveness were negatively related to sustained attention at age 2. Significant interactions emerged such that high levels of maternal warmth/responsiveness buffered the negative associations between low use of distraction and high use of self‐comforting emotion regulation strategies and sustained attention at age 2. Maternal behaviour characterized by high levels of warmth/responsiveness also predicted greater growth in sustained attention from age 2 to 4.5. These findings are discussed in terms of how maternal behaviours and children's use of active versus passive emotion regulation strategies relate to sustained attention abilities. Copyright © 2011 John Wiley & Sons, Ltd.     

Relation of Maternal Role Concepts to Parenting, Employment Choices, and Life Satisfaction Among Japanese Women

Japanese women are often described as heavily invested in the role of mother, yet young women in contemporary Japan are increasingly likely to postpone or opt out of marriage and child rearing. To understand the psychological dynamics of parenting among Japanese women who have chosen to become mothers, we examined the relation of maternal role salience beliefs, personal maternal role commitment, and parenting self-efficacy to life satisfaction, number of children, and employment status. Survey data were obtained from 116 urban Japanese women with children in the 2nd grade. Mothers with more children expressed greater personal role commitment. Those who had sought employment were less likely to hold strong maternal role salience beliefs. Life satisfaction was predicted by having more children, feeling efficacious as a parent, and being employed. These findings suggest that even in a society characterized by strong normative expectations for women, women's life satisfaction and choices about family life and employment are related to individual beliefs, attitudes, and judgments about their role.     

Psychobiological Roots of Early Attachment

ABSTRACT— New laboratory research has revealed a network of simple behavioral, physiological, and neural processes that underlie the psychological constructs of attachment theory. It has become apparent that the unique features of early infant attachment reflect certain unique features of early infant sensory and motor integration, learning, communication, and motivation, as well as the regulation of biobehavioral systems by the mother–infant interaction. In this article, I will use this new knowledge to answer three major questions that have remained unsettled in our understanding of early human attachment: What creates an attachment bond? Why is early maternal separation stressful? How can early relationships have lasting effects? I will discuss the implications of these new answers for human infants and for the development of mental processes. Attachment remains useful as a concept that, like hunger, describes the operation of subprocesses that work together within the frame of a vital biological function.     

Maternal attributions and young children's conduct problems: a longitudinal study

The association between negative maternal attributions and child conduct problems is well established in correlational studies. However, little is known about how these variables influence each other over time. The present study examined patterns of prediction over time between maternal attributions and pre‐school conduct problems. Sixty mothers and their 3‐year‐old children with a range of levels of conduct problems were interviewed when the child was just 3, and then again when the child was just 4. Childhood conduct problems were assessed using the parental account of childhood symptoms and parental attributions were assessed using a modification of Walker's Parental Attribution Questionnaire. Results indicate that even as young as age 3, child conduct problems are associated with negative maternal attributions. In longitudinal analyses, children's conduct problems at age 3 predicted mothers' attributions at age 4, but mothers' attributions did not predict children's conduct problems over the same time period. The data are consistent with the notion that negative attributions may be a result, rather than a cause, of having a difficult‐to‐manage child. This has implications for current proposed mechanisms that link maternal attributions and child conduct problems, and thus for interventions for these problems. Copyright © 2006 John Wiley & Sons, Ltd.     

Infant withdrawal and behavior problems in urban Chinese toddlers: Roles of maternal sensitivity to infant distress and emerging delay ability

Using a longitudinal design, this study examined the associations between infant temperamental withdrawal and behavior problems during toddlerhood and tested the moderating effects of maternal sensitivity to infant distress (MSID) and toddlers’ ability to delay gratification (ADG) in urban Chinese families. Participants were 84 Chinese children (37 boys, 47 girls) and their mothers. When the infants were 6 months old (T1: infancy), their mothers reported their temperamental withdrawal, and research assistants observed and coded MSID by using a subscale of the Maternal Behavior Q-Sort during free-play interaction. When the toddlers were 1 year old (T2: early toddlerhood), their mothers reported their internalizing and externalizing problems. When the toddlers were 2 years old (T3: late toddlerhood), their mothers again reported their internalizing and externalizing problems, and their abilities of delay gratification were assessed through a laboratory-based procedure. Infant temperamental withdrawal was associated with increased internalizing problems in early toddlerhood and increased externalizing problems during middle to late toddlerhood; infants whose mothers were extremely high sensitive or low sensitive to their distress or those with late poor ability of delay gratification were at particular risk. The findings highlight the importance of matching parenting and promotion of self-control for temperamental withdrawn children's optimal development.     

DNA methylation of NR3c1 in infancy: Associations between maternal caregiving and infant sex

Caregivers play a critical role in scaffolding infant stress reactivity and regulation, but the mechanisms by which this scaffolding occurs is unclear. Animal models strongly suggest that epigenetic processes, such as DNA methylation, are sensitive to caregiving behaviors and, in turn, offspring stress reactivity. We examined the direct effects of caregiving behaviors on DNA methylation in infants and infant stress reactivity. Infants and mothers (N = 128) were assessed during a free play when infants were 5 months old. Maternal responsiveness and appropriate touch were coded. and infant buccal epithelial cells were sampled to assess for DNA methylation of the glucocorticoid receptor gene, NR3c1 exon 1F. Infant cortisol reactivity was assessed in response to the still-face paradigm. Greater levels of maternal responsiveness and appropriate touch were related to less DNA methylation of specific regions in NR3c1 exon 1F, but only for females. There was no association with maternal responsiveness and appropriate touch or DNA methylation of NR3c1 exon 1F on prestress cortisol or cortisol reactivity. Our results are discussed in relation to programming models that implicate maternal care as an important factor in programing infant stress reactivity.     

What Do North American Babies Hear? A large‐scale cross‐corpus analysis

A range of demographic variables influences how much speech young children hear. However, because studies have used vastly different sampling methods, quantitative comparison of interlocking demographic effects has been nearly impossible, across or within studies. We harnessed a unique collection of existing naturalistic, day‐long recordings from 61 homes across four North American cities to examine language input as a function of age, gender, and maternal education. We analyzed adult speech heard by 3‐ to 20‐month‐olds who wore audio recorders for an entire day. We annotated speaker gender and speech register (child‐directed or adult‐directed) for 10,861 utterances from female and male adults in these recordings. Examining age, gender, and maternal education collectively in this ecologically valid dataset, we find several key results. First, the speaker gender imbalance in the input is striking: children heard 2–3× more speech from females than males. Second, children in higher‐maternal education homes heard more child‐directed speech than those in lower‐maternal education homes. Finally, our analyses revealed a previously unreported effect: the proportion of child‐directed speech in the input increases with age, due to a decrease in adult‐directed speech with age. This large‐scale analysis is an important step forward in collectively examining demographic variables that influence early development, made possible by pooled, comparable, day‐long recordings of children's language environments. The audio recordings, annotations, and annotation software are readily available for reuse and reanalysis by other researchers.     

Brain lateralization of phonological awareness varies by maternal education

Socioeconomic status (SES) has been shown to influence language skills, with children of lower SES backgrounds performing worse on language assessments compared to their higher SES peers. While there is abundant behavioral research on the effects of SES, whether there are differences in the neural mechanisms used to support language skill is less established. In this study, we examined the relation between maternal education (ME), a component of SES, and neural mechanisms of language. We focused on Kindergarten children, at the beginning of formal reading education, and on a pre‐reading skill, phonological awareness—the ability to distinguish or manipulate the sounds of language. We determined ME‐related differences in neural activity by examining a skill‐matched sample of typically achieving 5‐year‐old children as they performed a rhyme judgment task. We examined brain lateralization in two language processing regions, the inferior frontal gyrus (IFG) and superior temporal gyrus (STG). In the IFG, lateralization was related to ME but not skill: children with low ME showed bilateral activation compared to children with higher ME who showed leftward lateralization. In the STG, there was a skill by ME interaction on lateralization, such that children with high ME showed a positive relation between rightward lateralization and skill and children with low ME showed a positive relation between leftward lateralization and skill. Thus, we demonstrated ME is related to differences in neural recruitment during language processing, yet this difference in recruitment is not indicative of a deficit in linguistic processing in Kindergarten children.     

啮齿动物主动母性行为动态改变的神经机制

主动母性行为是雌性哺乳动物在哺乳期内有效照料幼崽的一种动机行为, 对幼崽的生存和行为发展有重要影响。证据显示, 啮齿动物的主动母性行为会经历从产后早期的发动和维持到晚期衰退的动态改变, 反映了雌鼠对幼崽奖赏价值阶段性变化的适应; 这一过程不仅涉及分娩激素事件开启下丘脑内侧视前区(MPOA)-中脑腹侧被盖(VTA)-伏隔核(NA)-腹侧苍白球(VP)通路, 还需要杏仁核基底外侧核(BLA)和内侧前额皮层(MPFC)等脑区对上述通路进行实时调节。哺乳期主动母性行为动态改变及其神经机制的研究, 可以加深对行为进化和早期发展的认识, 也对人类母亲产后抑郁等临床问题的干预有借鉴意义。本文首先利用条件化位置偏好(CPP)任务的行为学证据分析幼崽奖赏价值与主动母性行为动态改变的关系; 然后系统阐述调控这一动态改变的神经机制; 最后对未来需要研究的一些重要问题或方向进行探讨。     

Stigma and Ostracism Associated with HIV/AIDS: Children Carrying the Secret of Their Mothers' HIV+ Serostatus

Qualitative interviews were conducted with mothers (N = 47) who had disclosed their HIV status to their children. The majority of mothers explicitly told their child not to disclose to other people that she was HIV-positive because they feared repercussions in the way of stigma and ostracism for both themselves and their child. Approximately one-fourth of the mothers identified safe people, to whom their child could discuss her serostatus, such as family members, health care providers, or therapists. The majority of the children respected their mothers' wishes; only four children disclosed to someone after being explicitly told not to do so. A significant number of children expressed concerns about their friends finding out, fearing that they would be ostracized or that it would be assumed they were also infected. In addition, the children did not want others to find out because they wanted to protect their mothers. The burden of keeping the secret of their mothers' serostatus does seem to be a stressor for some of the children.