What can make the difference? Premature birth and maternal sensitivity at 3 months of age: the role of attachment organization, traumatic reaction and baby's medical risk

The influence of prematurity and maternal attachment organization on sensitivity was investigated in 40 mother–infant dyads. Results show a main effect of attachment and an interaction between attachment and prematurity. Sensitivity was differently associated with medical risk and mothers’ traumatic reaction, depending on the quality of attachment.     

Motherhood in adolescent mothers: Maternal attachment,mother–infant styles of interaction and emotion regulation at three months

Early motherhood is considered a risk factor for an adequate relationship between mother and infant and for the subsequent development of the infant. The principal aim of the study is to analyze micro-analytically the effect of motherhood in adolescence on the quality of mother–infant interaction and emotion regulation at three months, considering at the same time the effect of maternal attachment on these variables. Participants were 30 adolescent mother–infant dyads compared to 30 adult mother–infant dyads. At infant 3 months, mother–infant interaction was video-recorded and coded with a modified version of the Infant Caregiver Engagement Phases and the Adult Attachment Interview was administered to the mother. Analysis showed that adolescent mothers (vs. adult mothers) spent more time in negative engagement and their infants spent less time in positive engagement and more time in negative engagement. Adolescent mothers are also less involved in play with their infants than adult mothers. Adolescent mother–infant dyads (vs. adult mother–infant dyads) showed a greater duration of negative matches and spent less time in positive matches. Insecure adolescent mother–infant dyads (vs. insecure adult mother–infant dyads) demonstrated less involvement in play with objects and spent less time in positive matches. To sum up adolescent mother–infant dyads adopt styles of emotion regulation and interaction with objects which are less adequate than those of dyads with adult mothers. Insecure maternal attachment in dyads with adolescent mothers (vs. adult mother infant dyads) is more influential as risk factor.     

Bed-sharing, breastfeeding and maternal moods in Barbados

Bed-sharing among Barbadian mothers and infants was studied in relationship to maternal and infant characteristics. This prospective study followed 226 healthy, well-nourished mother–infant dyads at birth, 7 weeks, 3 months, and 6 months postpartum. At each age, approximately half of the infants shared the same beds as their mothers. Bed-sharing was associated with demographic characteristics, especially fewer home conveniences, and also maternal characteristics, including less information seeking by the mother and younger maternal age at first pregnancy. Bed-sharing was also associated with lower infant birth weights. Maternal moods were significantly correlated with bed-sharing, such that mothers who reported having more despair and anxiety were also more likely to sleep with their infants. Bed-sharing was also significantly associated with increased breastfeeding at all infant ages, but this relationship was no longer significant once the effects of maternal moods were controlled. This study emphasizes the importance of assessing maternal moods in studies evaluating the risk and benefits of bed-sharing.     

The mediating role of maternal responsiveness in some longer term effects of postnatal depression on infant development

We hypothesized a mediating role for low maternal responsiveness in certain child developmental deficits found previously to be associated with postnatal depression. Forty depressed inpatients and 48 control (non-depressed) mothers and their infants were followed until 42 months postpartum. Mother–infant interactions were impaired at 6 months postpartum in the depressed group. Subsequent cognitive deficits were found in children's Full Scale IQ on the Wechsler Preschool Primary Scale of Intelligence (Revised) at 42 months of age. Statistical modeling of the mediation hypothesis confirmed that these effects were overwhelmingly explained by lowered maternal responsiveness at 6 months. Similarly, increased temperamental difficulties were apparent in children of depressed mothers but were not correlated with maternal responsiveness. Male infants of depressed mothers were disproportionately vulnerable (compared to females) to impaired cognitive abilities associated with maternal depression. The data concur with previous work and provide empirical support for the theoretical prediction that early disturbances of the mother–infant interaction will mediate some developmental deficits in the children of depressed mothers.     

Revisiting the roots of attachment: A review of the biological and psychological effects of maternal skin-to-skin contact and carrying of full-term infants

During the early period of hypothesis building and empirical testing of attachment theory, a major emphasis was placed on mother-infant physical contact. In spite of this, mother-infant contact has received scant attention amongst attachment and child development researchers in the past decades. Here, a brief theoretical framework for mother-infant contact is presented, drawing on animal studies as well as human studies of preterm infants and neonates. Salient mechanisms may include an extended sensitive period during early infancy, requiring specific somatosensory stimuli for bio-behavioral homeorhesis; oxytocinergic and epigenetic pathways; kinesthetic stimuli and face-to-face proximity allowing for increased social interaction. Studies of extended human mother-full-term infant physical contact have demonstrated positive effects in multiple domains. For infants, these include sleep organization, temperature and heart rate regulation, behavioral response, crying/colic, socio-emotional development, attachment quality, speech development opportunities and mother-child interactions. For mothers, studies demonstrate improved depressive symptomatology, physiological stress regulation, contingent responsivity, breastfeeding and mother-child interactions. Parent-infant attachment quality has gained prominence as a trauma-resilience factor as well as a predictor of adult physical health. The potential role of mother-infant contact as an attachment promoting intervention as well as future research subjects are discussed. Current evidence supports the original attachment research that early maternal touch provision may influence infant socio-emotional development and attachment quality, with positive implications for mother-child relationship functioning.     

Attachment,Behavioral Inhibition,and Anxiety in Preschool Children

This study examined the association between insecure attachment, behavioral inhibition, and anxiety in an at risk sample of preschool children. The relationship between maternal anxiety and child anxiety was also assessed. Participants were 104 children aged 3–4 years who were assessed for behavioral inhibition and mother–child attachment (using the Strange Situation procedure). DSM-IV criteria were used to assess childhood anxiety disorders. Insecure attachment and behavioral inhibition were both independently associated with child anxiety, even after controlling for the effect of maternal anxiety. Maternal anxiety was also associated with child anxiety. This study identified both constitutional and environmental factors associated with the expression of anxiety in young children. Furthermore, the highest levels of anxiety were shown by children who were behaviorally inhibited and insecurely attached and whose mothers were also anxious.     

Risks and realities: dyadic interaction between 6-month-old infants and their mothers in opioid maintenance treatment

A number of studies point to methadone exposure in utero as a possible risk factor in the developing mother–infant relationship in the first year of life. This study is part of a larger, national follow-up of 38 infants prenatally exposed to methadone or buprenorphine and 36 comparison, low-risk infants. The aim of the present paper is to assess the quality of mother–infant relationship when the infants are 6 months old. Videotaped mother–infant interactions were rated in a global scale (NICHD). Maternal and infant contributions collapsed into the variables “infant style” and “maternal style” showed that the only factor making significant contribution to the outcome measure “dyadic mutuality” was maternal style. The importance of group membership (exposed versus non-exposed), was reduced when controlling for maternal drug use prior to opioid maintenance treatment (OMT), maternal depression and parenting stress as well as infants’ developmental status and sensory-integrative functions. This suggests that prediction of dyadic mutuality should be based on individual characteristics rather than group characteristics. These results support previous research findings that methadone and buprenorphine use per se does not have direct influence on the quality of early mother–infant relationship, but tailored follow-up procedures targeting drug-free pregnancies and parenting support are beneficial for women in OMT and their children.     

The many faces of the Still-Face Paradigm: A review and meta-analysis

The Still-Face Paradigm (SFP) designed by Tronick, Als, Adamson, Wise, and Brazelton (Tronick, E., Als, H., Adamson, L., Wise, S., & Brazelton, T. B. (1978). Infants response to entrapment between contradictory messages in face-to-face interaction. Journal of the American Academy of Child and Adolescent Psychiatry, 17, 1–13) has been used for many different purposes in over 80 empirical studies. In the current paper, the nature and correlates of infant behavior in the SFP were examined in a systematic narrative review and a series of meta-analyses. The results of the meta-analyses confirmed the classic still-face effect of reduced positive affect and gaze, and increased negative affect, as well as a partial carry-over effect into the reunion episode consisting of lower positive and higher negative affect compared to baseline. The still-face effect is very robust as it was found regardless of most sample variations such as infant gender and risk status, and regardless of most procedural variations, such as the length of the SFP episodes and the use of intervals between episodes. The few moderator effects that were found in the meta-analyses tended to put findings from the narrative review in a new perspective. Additional meta-analyses confirmed the narrative review in finding that higher maternal sensitivity predicted more infant positive affect during the still-face. Infants’ higher positive affect and lower negative affect during the still-face were predictive of secure attachment at age 1 year. The meta-analytic results for maternal depression were equivocal. Implications for future research include a need for studies testing the role of the adults’ identity (parent versus stranger, mother versus father) to elucidate the relationship-specificity of the still-face effect. Also, the role of maternal sensitivity and temperament as potential moderators of the still-face effect need to be examined further. On a procedural level, the effects of the timing of the still-face and of the duration of the reunion on infant responses deserve future research attention.     

Forecasting friendship: How marital quality, maternal mood, and attachment security are linked to children's peer relationships

Mothers' perceptions of marital quality and depressed mood and children's attachment security and friendship quality were assessed in the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development. One month after their birth and again when the children were 3 and 4 years old and in first and third grades, mothers rated the quality of their marital relationship; when the children were 2 years old, the Attachment Q-Set was used to assess the mother–child attachment relationship; the Center for Epidemiologic Studies Depression Scale was used to measure the mother's depressed mood when the child was 2 years old and in third grade; and when children were in fourth grade, they were observed interacting with their best friend to assess friendship quality. Using a series of regression and path analyses, we determined whether and how marital quality, maternal mood, and attachment security predicted friendship quality. Better quality friendship interactions in fourth grade were significantly associated with better marital quality and greater attachment security. The association between marital quality and friendship quality was partially mediated by attachment security. Friendship quality was not related to maternal mood.     

Mother-child relationships of children with ADHD: the role of maternal depressive symptoms and depression-related distortions

We investigated the DepressionDistortion hypothesis by examining the effects of maternal depressive symptoms on cross-informant discrepancies in reports of child behavior problems and several measures of parent–child relationship. The sample included ninety-six 6 to 10-year-old children diagnosed with ADHD-Combined Type, and their mothers, who provided baseline data before participating in a randomized clinical trial. Measures incorporated child characteristics, self-reports of maternal depressive symptoms, parenting practices, and laboratory mother–child interactions. Elevations in maternal depressive symptoms were associated with maternal reports of negative parenting style but not with observed laboratory interactions. Mothers' levels of depressive symptoms predicted negative biases in their reports of their child's ADHD symptoms, general behavior problems, and their own negative parenting style. Whereas levels of depressive symptoms did not predict observed parenting behaviors, maternal distortions did predict problematic parent–child interactions. Exploratory analyses showed a marginally significant mediation effect of the relationship between maternal depressive symptomatology and reports of negative parenting by depressive distortions. We discuss implications of linkages between depressive symptoms in mothers, depression-related distortions, and mother–child relationships for research and intervention in developmental psychopathology.     

Positive maternal interaction behavior moderates the relation between maternal anxiety and infant regulatory problems

Regulatory problems in infancy are determined by different risk factors. This study aims to examine how psychosocial risk factors are connected, and how they impact the early regulatory ability of 3-month-old infants. In a sample of 57 mother–infant dyads, maternal anxiety and infant crying, sleeping and feeding habits were assessed. As a possible moderator, the role of positive maternal behavior was analyzed by videotaping face-to-face interactions. During the interaction, interactive stress was provoked with the face-to-face still-face paradigm (FFSF). Thus, this study differentiated between the effects of maternal behavior in both an ordinary play context, as well as a stressful interaction context. Results revealed that the relation between maternal anxiety and infant regulatory problems in crying and sleeping varied as a function of positive maternal engagement in stressful situations. However, a significant moderation effect influencing infant feeding problems could not be demonstrated. These findings stress the importance of positive maternal interaction behavior in at least some parts of regulatory adjustment of at-risk infants.     

母亲守门行为与父子依恋的关系：父亲教养投入的中介作用

以597个核心家庭的父亲、母亲和青少年为研究对象,通过问卷调查探讨了母亲守门行为与父子依恋的关系以及父亲教养投入在其中的中介作用。结果表明：（1）母亲开门行为正向预测父子依恋,母亲关门行为负向预测父子依恋;（2）母亲开门行为通过正向预测父亲教养投入的部分中介作用间接预测父子依恋,而母亲关门行为通过负向预测父亲教养投入的部分中介作用间接预测父子依恋。研究结果扩展了母亲守门行为的作用效果研究,对家庭教育实践具有一定的指导意义。     

The association between observed non-verbal maternal responses at 12 months and later infant development at 18 months and IQ at 4 years: a longitudinal study

Background

An infant's early environment has an important influence on their development. For example, the sensitivity and warmth of a mother's responses towards her infant is associated with the infant's later socio-emotional development. However, it is less clear whether maternal responses are associated with the infant's later cognitive development.

Method

We used data from a large UK cohort study to investigate the association between non-verbal maternal responses and later infant development and IQ. Maternal responses were rated at 12 months during an observed mother–infant interaction. Infant development was assessed using the Griffiths scales at 18 months and IQ at 4 years was assessed using the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). Data on the infant's developmental level at 6 months (prior to the maternal response ratings) was also available. The complete case sample comprised 732 mother–infant pairs.

Results

There was evidence for an association between positive maternal responses and infant development at 18 months. After adjusting for infant developmental level at 6 months and other confounders, we found a difference of 0.25 standard deviations (coef 2.0, 95% CI (0.8–3.2), p = 0.002) on the Griffiths scales between infant's whose mothers showed positive compared to neutral non-verbal responses at 12 months. However, an association between positive maternal responses and IQ at 4 years diminished following adjustment for maternal educational attainment.

Conclusion

The results provide evidence that positive maternal responses are associated with improved development in infants at 18 months. However, the association between maternal response and IQ at 4 years may be explained by higher educational attainment in mothers who show positive responses. Future studies are needed to explore the influence of maternal responses on different aspects of infant development as well as the role of maternal factors such as education.     

Infant interest in their mother's face is associated with maternal psychological health

Early experience can alter infants’ interest in faces in their environment. This study investigated the relationship between maternal psychological health, mother–infant bonding, and infant face interest in a community sample. A visual habituation paradigm was used to independently assess 3.5-month old infants’ attention to a photograph of their mother's face and a stranger's face. In this sample of 54 healthy mother–infant pairs, 57% of mothers (N = 31) reported symptoms of at least one of stress response to trauma, anxiety, or depression. Interest in the mother-face, but not stranger-face, was positively associated with the mother's psychological health. In regression analyses, anxiety and depression predicted 9% of the variance in looking to the mother-face. Anxiety was the only significant predictor within the model. No direct associations were found between mother–infant bonding and infants’ face interest. Taken together, these findings indicate that infant's visual engagement with their mother's face varies with maternal symptoms of emotional distress, even within a community sample.     

Infant emotion regulation: Relations to bedtime emotional availability,attachment security,and temperament

The present study examines the influences of mothers’ emotional availability toward their infants during bedtime, infant attachment security, and interactions between bedtime parenting and attachment with infant temperamental negative affectivity, on infants’ emotion regulation strategy use at 12 and 18 months. Infants’ emotion regulation strategies were assessed during a frustration task that required infants to regulate their emotions in the absence of parental support. Whereas emotional availability was not directly related to infants’ emotion regulation strategies, infant attachment security had direct relations with infants’ orienting toward the environment and tension reduction behaviors. Both maternal emotional availability and security of the mother–infant attachment relationship interacted with infant temperamental negative affectivity to predict two strategies that were less adaptive in regulating frustration.     

The Relation Between Coordinated Interpersonal Timing and Maternal Sensitivity in Four-Month-Old Infants

The relation between mother–infant coordinated interpersonal timing, an automated microanalytic measure of dyadic vocal coordination, and maternal sensitivity was explored. Thirty-five mothers and their developmentally normal 4-month-old infants were audio-recorded during a 20-min laboratory vocal interaction session, that was later analyzed for degree of vocal coordination. Maternal Sensitivity ratings (Ainsworth & Bell, 1969) were based on a video-taped 45-min unstructured laboratory interaction period. A significant curvilinear relation between the degree to which mother coordinated her noninterruptive co-occurring speech to that of her infant was found and revealed that mothers highest in sensitivity were characterized by moderate levels of coordination. Examining mother-infant interaction at the specific behavioral level, while incorporating tests of nonlinear trends, may provide important information about the nature of sensitive parenting.     

Maternal Symptoms of Attention-Deficit/Hyperactivity Disorder and Maternal Language: Implications for Infant Language Development

The relationship between maternal ADHD symptoms and maternal language was examined in a community sample of 50 mothers of infants age 3–12 months. It was hypothesized that higher maternal symptoms of ADHD would be related to lower quality of maternal language use. Recordings of mothers’ speech were coded for complexity and elaboration of speech and vocabulary diversity during an interview with an adult and during mother–infant play interactions in the home. Hierarchical regression analysis revealed that maternal ADHD symptoms were significantly related to mothers’ lower mean length of utterances during the interview and during mother–infant play interactions. Maternal ADHD symptoms were not related to maternal vocabulary use in either of these situations. Our findings suggest that mothers with higher ADHD symptoms may display exiguous language behaviors when interacting with their infants and with adults. In addition, findings suggest one reason why current parent-management programs for children with ADHD, which are verbally based and rely heavily on the parent’s communication skills, are relatively ineffective when ADHD may be present in the parent.     

Tonal synchrony in mother–infant interaction based on harmonic and pentatonic series

This study reports the occurrence of ‘tonal synchrony’ as a new dimension of early mother–infant interaction synchrony. The findings are based on a tonal and temporal analysis of vocal interactions between 15 mothers and their 3-month-old infants during 5 min of free-play in a laboratory setting. In total, 558 vocal exchanges were identified and analysed, of which 84% reflected harmonic or pentatonic series. Another 10% of the exchanges contained absolute and/or relative pitch and/or interval imitations. The total durations of dyads being in tonal synchrony were normally distributed (M = 3.71, SD = 2.44). Vocalisations based on harmonic series appeared organised around the major triad, containing significantly more simple frequency ratios (octave, fifth and third) than complex ones (non-major triad tones). Tonal synchrony and its characteristics are discussed in relation to infant-directed speech, communicative musicality, pre-reflective communication and its impact on the quality of early mother–infant interaction and child's development.     

TOP‐DOWN AND BOTTOM‐UP: THE ROLE OF SOCIAL INFORMATION PROCESSING AND MINDFULNESS AS PREDICTORS IN MATERNAL–INFANT INTERACTION

The cross‐generational transmission of attachment appears to reflect a complex interplay of factors, which have been challenging to identify. The current longitudinal study explored the maternal cognitive model of relationships through language use, maternal mindfulness, and attachment style assessed prenatally, as predictors of maternal response to distress and infant behavior at 6 months’ postpartum. Infant behavior to the mother also was examined to provide an understanding of the evolving relationship. Thirty‐two females were interviewed prenatally regarding social and family experiences. At 6 months’ postpartum, each mother participated in a video‐recorded session where she was asked to teach her infant a developmentally appropriate task. Videos were analyzed using the NCAST Teaching Protocol. Language use prenatally as well as the mindfulness facets (acting with awareness and describing) predicted the mothers’ ability to respond to infant distress, indicating greater attunement. Infant's response to mother and clarity of cues also were predicted by maternal pronoun use. The study highlights the role of internal working models reflective of interpersonal beliefs, cognitive models, and current‐moment awareness in maternal behavior. The effect of maternal language on infant behavior arguably indicates the infant's integration of maternal internal working models.     

Maternal depression and infant attachment security: A meta-analysis

The purpose of this study is to clarify the magnitude of the association between maternal depression and infant attachment nonsecurity, and to identify possible moderators of this relationship. An extensive literature search was conducted using multiple databases of both published and unpublished studies. A meta-analysis was conducted to determine the relationship between maternal depression and infant attachment security and to establish the effect size. The main findings from this meta-analysis, which included 42 studies, indicate that there is a small, yet significant, relationship between maternal depression and infant attachment nonsecurity. The rate of nonsecurity in infants of mothers with depression was approximately 20% higher than expected rates in a nonclinical population, and the association between depressive symptoms and nonsecurity was small, but significant. Infants of mothers with depression were nearly twice as likely to have a nonsecure attachment than were infants of healthy mothers. Depression measure and maternal sample source were identified as significant moderators of the odds ratio effect size. Results of this study demonstrate that there is a significant relationship between maternal depression and infant attachment nonsecurity, and suggest that interventions that focus on both maternal mental health and the attachment relationship are warranted.