Postpartum adjustment in first-time mothers: Relations between mood, maternal attitudes, and mother-infant interactions.

Self-report data were obtained from a middle-income sample of first-time mothers during pregnancy and at 1 and 3 months postpartum, and behavioral interactions between the mother and her infant were observed at 3 days and 1, 3, and 16 months postpartum. The main analyses revealed that pregnancy and postpartum mood states together explain a high proportion of the variance in mothers' maternal attitudes during the postpartum, although postpartum mood has the greater predictive power. Additionally, prior experience with children is significantly associated with maternal attitudes at all time points. Moreover, at both 1 and 3 months postpartum, depressed mothers, relative to nondepressed mothers, exhibit fewer affectionate contact behaviors toward their infants and are less likely to respond to infant vocalizations by vocalizing themselves, and, at 3 months, a higher proportion of the depressed mothers had started bottle-feeding their infants. Finally, differences in maternal behavior between depressed and nondepressed mothers during the early postpartum period were no longer apparent at 16 months postpartum. The implications of these findings are discussed with particular reference to the interrelations between prior child-care experience, mood, and maternal responsiveness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Similarities and differences in infant-mother and infant-father interaction in the strange situation: A component process analysis.

This study examined similarities and differences in infant–mother and infant–father interaction. Previously published data (Belsky, Garduque, & Hrncir, 1984) on infants observed in the Strange Situation with their mothers (N?=?60) and fathers (N?=?50) at 12 and 13 months were reanalyzed using a component process approach to investigate (a) whether the organization of social interactive behavior is relationally based, (b) the factor-analytic structure of social interaction with the two caregivers, (c) the predictive power of crying and social interactive behavior with each caregiver to subsequent behavior with a stranger, and (d) the relative cross-caregiver consistency of crying versus social interaction. Results indicated (a) that the organization of infant social interaction depends on the interactive partner and on the affective context, (b) that infant behavior with the father is more predictive of infant–stranger interaction than is infant–mother interaction, and (c) that crying is more consistent than social interaction across caregivers. Results are interpreted as being consistent with a view of attachment relationships as relationally based and as evidence for the usefulness of the finer-grained analysis provided by the component process approach. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mother-infant face-to-face interaction in Japan and the United States: A laboratory comparison using 3-month-old infants.

In this cross-cultural comparison 36 Japanese and 36 American 3-month-old infant–mother dyads were videotaped in a standardized laboratory setting in their own countries. Mothers in both countries responded contingently to these infant behaviors, but there were differences in the type and timing of maternal behavior vis-à-vis infant behavior. Japanese mothers were more likely than American mothers to punctuate their facial expressions and vocalizations with looming upper-body movements and with touches and they were less likely to respond selectively to infant vocalizations. American mothers held their faces closer to the infants' and provided primarily facial and vocal displays for the infant. Japanese infants tended to display longer average durations of smiling and vocalizing with a lower rate of onsets compared with American infants. The results have implications for understanding the role of the face-to-face period in human development and the way in which cultural differences in interpersonal communicative style may guide the development of infant affective expression. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Infants of postpartum depressed mothers: Temperament and cognitive status.

This study examined the association of postpartum depression with specific infant characteristics. Twenty-five diagnosed depressed and 25 nondepressed mothers and their 2-month-old infants participated in the study. The mothers completed measures of infant temperament and difficulty associated with infant care, and the infants were assessed using the Bayley Scales of Infant Development. Group comparisons indicated that, compared with the infants of the nondepressed mothers, the infants of the depressed women were less competent cognitively and expressed more negative emotions during the testing. The depressed mothers perceived their infants as more difficult to care for and more bothersome than did the nondepressed mothers, but did not attribute these difficulties to the temperament of their infants. These findings suggest that postpartum depression is associated with an identifiable pattern of infant behavior that may exacerbate depressed women's mood. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Defining the role of the bladder-neck sling in the surgical treatment of urinary incontinence in children with neurogenic incontinence

Mother squirrel monkeys stop carrying infants at earlier ages in high-demand (HD) conditions where food is difficult to find relative to low-demand (LD) conditions. To characterize these transitions in psychosocial development, from 10- to 21-weeks postpartum we collected measures of behavior, adrenocortical activity, and social transactions coded for initiator (mother or infant), goal (make-contact or break-contact), and outcome (success or failure). Make-contact attempts were most often initiated by HD infants, but mothers often opposed these attempts and less than 50% were successful. Break-contact attempts were most often initiated by LD infants, but mothers often opposed these attempts and fewer LD than HD infant break-contact attempts were successful. Plasma levels of cortisol were significantly higher in HD than LD mothers, but differences in adrenocortical activity were less consistent in their infants. HD and LD infants also spent similar amounts of time nursing on their mothers and feeding on solid foods. By rescheduling some transitions in development (carry-->self-transport), and not others (nursing-->self-feeding), mothers may have partially protected infants from the immediate impact of an otherwise stressful foraging task.     

The Mother-Infant Relationship in Single, Cohabiting, and Married Families: A Case for Marriage?

Single-mother, cohabiting 2-parent, and married 2-parent families with infants were compared on maternal and infant behavior, Home Observation for Measurement of the Environment (HOME) scores, and infant's security of attachment. Married mothers and their infants demonstrated more positive behavior and received higher HOME scores when the infant was 6 and 15 months old than did their cohabiting and single counterparts. Married families were also better off than single and cohabiting families on several demographic, parent personality, financial, and social context measures. Single and cohabiting families were similar across most measures. Selection variables (maternal age, ethnic group, and education) explained much, but not all, of the family structure differences in the mother-infant relationship and the HOME. Maternal psychological adjustment, attitudes about child rearing, income, and social support explained little of the family structure variation, suggesting that characteristics that preceded marriage and conception were important determinants of family structure differences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mother–infant responsiveness: Timing, mutual regulation, and interactional context.

Mutual regulation during the naturalistic interaction of 150 mothers and their 4-month-old infants was investigated from a dynamic systems perspective. Microanalyses of a wide range of behaviors and analysis of contingencies indicated that a 3-sec time period best captured contingencies. Both mothers and infants communicated primarily through vocal signals and responses, although maternal touches and infant looks also elicited responses. Although more expressive mothers did not have infants who behaved similarly, levels of contingent responsiveness between partners were significantly associated and occurred within distinct behavioral channels, suggesting coregulated interactional processes in which contingently responsive mothers shape their infants' communications toward mutual similarity. Mothers were more influential than infants over object play, whereas infants were more influential than mothers over expressive behavior. Interactional context consistently influenced contingent responsiveness; there was less mutual responsiveness when the infant was exploring, being held, or looking. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Infants at social risk: Relations among infant maltreatment, maternal behavior, and infant attachment behavior.

Fifty-six 12-mo-old infants, including 10 maltreated infants, 18 nonmaltreated high-risk infants, and 28 matched low-income controls, were videotaped in naturalistic settings at home with their mothers for 40 min and were observed 2 weeks later in the Ainsworth Strange Situation. Maltreating mothers were rated higher than nonmaltreating mothers on covertly hostile and interfering behaviors toward their infants at home. Maltreated infants were more avoidant of their mothers in the Strange Situation than nonmaltreated infants. Correlations between maternal behaviors at home and infant behaviors in the Strange Situation revealed that mothers whose infants displayed resistant behavior on reunion were rated at home as less verbally communicative and mothers whose infants displayed avoidant behavior on reunion were rated at home as more covertly hostile. Infants showing mixed avoidance and resistance were more likely to have extremely uncommunicative mothers than were infants who showed avoidance alone. Use of the behavioral rating scales for avoidance and resistance produced clearer findings than use of the final attachment classifications. Reasons for the discrepancies between analyses of classifications and analyses of behavior ratings were identified. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age-mate or twin sibling: Effects on interactions between monkey mothers and infants.

Examined the effects of the twin sibling relationship upon interactions between mother and infant. 12 rhesus monkey infants were reared with a mother and nonsibling peers; 8 had an age-mate or twin sibling, while 4 control infants did not. The sibling pairs were formed by fostering newborns 2 to a mother; the control infants were fostered 1 to a mother. Findings indicate that the twin infants did not engage in as much interaction with their mothers throughout a 7-mo period of observation on a wide range of indexes, including such basic behaviors as a contact with the mother's ventrum and nipples. The mothers rearing twins spent less time cradling their infants and less frequently rejected them. There were a few additional differences, notably in the area of restrictive behavior, but it is concluded that the differences in maternal behavior were principally a reaction to the differences in infant behavior. (27 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Natural forms of shed tumor gangliosides

Data on activity states were collected from 29 group-housed capuchin monkey (Cebus apella) infants for 3 h each week from birth to 11 weeks of age. The amounts of time spent in sleeping/drowsy, alert-quiet, and alert-active states were measured in these subjects. Videotaped observations of these infants were recorded 3 times/week in the home cage over the first year of life and were scored for a number of social and exploratory behaviors. The extent to which early infant activity state scores predicted later behavior in the home cage was examined. Infant state measures correlated significantly with home cage behavior during months 2-6 in that infants that had been more active in early infancy spent more time alone, with other animals, and in exploration and play and less time with mothers than did quieter infants. Early state measures were less successful in predicting home cage scores beyond 8 months of age, whereas differences in behavior attributable to housing variables became more salient in the latter part of the first year. There was also a negative correlation between mother and infant activity in months 2 and 3, in that more sedentary mothers tended to have more active infants.     

Impact of premature birth on the development of the infant in the family.

This article describes effects of the birth of a premature infant on the family system and focuses on how problems associated with premature birth such as infant illness, hospitalization, and immaturity can place the family at risk. New data are presented describing differences in the behavior of preterm and full-term infants and in the feelings of mothers toward their infants at 12 months. Mothers of preterm infants reported feeling overprotective toward them, were less willing to leave them with sitters, and believed that their birth had an initially negative effect on the family. Preterm infants showed less exploratory play and stayed closer to their mothers during free play. The fact that these differences are not reflected in patterns of attachment, a key measure of the mother–infant relationship, is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Testing a family intervention hypothesis: The contribution of mother-infant skin-to-skin contact (kangaroo care) to family interaction, proximity, and touch.

The provision of maternal-infant body contact during a period of maternal separation was examined for its effects on parent-infant and triadic interactions. Participants were 146 three-month-old preterm infants and their parents, half of whom received skin-to-skin contact, or kangaroo care (KC), in the neonatal nursery. Global relational style and micropatterns of proximity and touch were coded. Following KC, mothers and fathers were more sensitive and less intrusive, infants showed less negative affect, and family style was more cohesive. Among KC families, maternal and paternal affectionate touch of infant and spouse was more frequent, spouses remained in closer proximity, and infant proximity position was conducive to mutual gaze and touch during triadic play. The role of touch as a constituent of the co-regulatory parent-infant and triadic systems and the effects of maternal contact on mothering, co-parenting, and family processes are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Behavior-state matching and synchrony in mother-infant interactions of nondepressed versus depressed dyads.

Behavior-state matching and synchrony in interactions were assessed in 48 depressed and nondepressed mother–infant dyads when the infants were 3 months old. Attentive/affective behavior states were coded for the infants and mothers on a negative to positive scale. The depressed mothers and their infants matched negative behavior states more often and positive behavior states less often than did the nondepressed dyads. The total percentage of time spent in matching behavior states was less for the depressed than for the nondepressed dyads. Cross-spectral analyses of the mothers' and the infants' behavior-state time series suggested only a trend for greater coherence or synchrony in the interactions of the nondepressed dyads. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Parents' emotional availability and infant emotional competence: Predictors of parent-infant attachment and emerging self-regulation.

One-year-old infants (N=62) and their mothers and fathers were observed in free play and teaching sessions in order to examine parents' emotional availability and the infant's emotional competence. Mothers were more emotionally available than fathers, and infants exhibited more effortful attention with mothers than with fathers. Similar relations between parental emotional availability and infant emotional competence were found for mother-infant and father-infant dyads. Change in parental emotional availability covaried with change in infant emotional competence. Individual differences in parental emotional availability and Infant emotional competence were more consistent across contexts than across parents. Infant effortful attention at 12 months was a mediator between maternal emotional availability at 12 months and toddler situational compliance at 16 months. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Length of maternity leave and quality of mother-infant interactions

The aim of this study was to assess the association between the length of maternity leave and the quality of mother-infant interactions; 198 employed mothers of 4-month-old infants were interviewed and videotaped in their homes during a feeding time. Hierarchical multiple regression analyses indicated a direct association between shorter length of leave and more negative affect and behavior in maternal interactions with their infants. Infant and mother stressor/protective variables added significantly in predicting the quality of the mother-infant relationship. There were also significant interaction effects between the length of leave and these variables. Mothers who either reported more depressive symptoms or who perceived their infant as having a more difficult temperament and who had shorter leaves, compared with mothers who had longer leaves, were observed to express less positive affect, sensitivity, and responsiveness in interactions with their infants. The public policy implications of the relation between length of maternity leave, maternal and infant individual differences, and the quality of mother-infant interactions are discussed.     

Effects of birth order and spacing on mother–infant interactions.

Examined early differences in mother–infant interaction as a function of infant birth order and birth spacing. 193 3-mo old infants and their mothers were observed in the home for a 2-hr period during which a wide variety of mother and infant behaviors were recorded. Birth-order effects were significant, with firstborns generally receiving and emitting behavior more frequently than later-borns. Birth-spacing effects were significant for maternal behavior, such that very closely and widely spaced infants received more maternal attention than middle-spaced groups. Both biological and environmental interpretations of these data are offered. The data are related to the theoretical model of the reciprocal nature of the infant–caregiver relationship. (32 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Behavior of Swedish primary and secondary caretaking fathers in relation to mother's presence.

Parents from 27 Swedish families were observed at home interacting with their infants (aged 8–12 mo) in 2 different social situations—(a) with the father, mother, and infant present and (b) the father alone with infant. 12 of the fathers had been primary caretakers for more than 1 mo (mean?=?3 mo); these families were designated as shared childcare. Men who took little or no parental leave and were never primary caretakers were from families designated as traditional. Results indicate that in the 3-person social context mothers were more likely to engage in distal bidding with their infants (vocalize, smile, laugh) and display affection toward their infants than fathers, regardless of the fathers' past histories of caregiving. By contrast, when the fathers were alone with their infants, effects of the fathers' caregiving histories did occur. In this situation, fathers from traditional families were more likely to display affection toward and play with their infants. In contrast to previous studies, it is suggested that differential involvement in childcare has significant effects in fathers' behavior. (6 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mothers, daughters, and disordered eating.

Examined features of 77 mothers' attitudes and behavior that relate to disordered eating among their adolescent daughters. Mothers whose daughters reported a level of disordered eating comparable with clinical samples of bulimic patients were compared with mothers whose daughters reported a low level of eating disturbances. As hypothesized, mothers of daughters with disordered eating were more dissatisfied with the general functioning of the family system. Also, mothers whose daughters were eating disordered were themselves more eating disordered and differed in their dieting history compared with mothers of the girls who were not eating disordered. Furthermore, mothers of girls with disordered eating thought their daughters should lose more weight than mothers of girls who were not eating disordered. They also thought that their daughters were less attractive than the girls judged themselves. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Determinants of postnatal weight in infant rhesus monkeys: implications for the study of interindividual differences in neonatal growth

This paper provides an analysis of infant body weights obtained from a sample of 38 rhesus monkey infants (Macaca mulatta) aged 29-165 days, i.e., animals still nutritionally dependent on their mothers. We examine the data on neonatal weights in relation to a number of factors, most notably, the sex of the infants, and the age and adiposity of their mothers. The infant body weights represent cross-sectional rather than longitudinal data; because they were mostly free-ranging animals, the infants were weighted just once each. Nevertheless, the results of our analysis strongly suggest that early postnatal growth in free-ranging rhesus is dependent on both maternal fatness and age. They also suggest that, although male infants are generally heavier than like-aged female infants, they do not grow any faster during the early postnatal period. Here, we speculate that the associations between infant size and both maternal age and adiposity are the result of between-mother differences in lactational output.