Associations of maternal sensitivity and embodied mentalizing with infant-mother attachment security at one year in depressed and non-depressed dyads.

Parental Embodied Mentalizing (PEM) captures the parent's capacity to extrapolate the child's mental states from movement and respond on a nonverbal level. Little is known about PEM's relation to other established measures of parent-child interactive behavior, such as maternal sensitivity and attachment. This is investigated in a sample of four months old infants and mothers with (n = 27) and without a diagnosis of postpartum depression (n = 44). Video-recorded infant-mother interactions were coded independently using PEM and Coding Interactive Behavior. Attachment was assessed at 13 months using the Strange Situation Procedure. Sensitivity and PEM was positively associated, but only sensitivity predicted attachment security and only the nonclinical group. This indicates that PEM and sensitivity are moderately related as well as capturing different aspects of infant-mother interactions. The study confirms previous findings of sensitivity predicting attachment in nonclinical groups. More research is required to further understand predictors of attachment in clinical samples.

Does Postpartum Depression Affect Parental Embodied Mentalizing in Mothers With 4-Months old Infants?

Parental Embodied Mentalizing (PEM) regards parents' nonverbal capacity to understand the infant's bodily manifested mental states and adjust his or her own movements accordingly. Little is known about how mothers suffering from postpartum depression (PPD) mentalize the infant on an embodied level. The aims of the present study were to investigate whether mothers meeting criteria for a PPD diagnosis differ from non-clinical mothers in regard to their PEM capacities and whether the severity of depressive symptoms was associated with PEM in mothers meeting criteria for a PPD diagnosis compared to non-clinical mothers. 10-minute long lab-based face-to-face interactions were coded with the PEM coding scheme at 4-months postpartum in mother-infant dyads with mothers meeting criteria for a PPD diagnosis (n = 29) and non-clinical mothers (n = 51). Results showed that mothers with and without a PPD diagnosis differ in their capacity to mentalize on an embodied level, but only when controlling for scores on the Edinburgh Postnatal Depression Scale (EPDS). However, more depressive symptoms as measured with the EPDS was not in itself associated with lower PEM in either group. This finding may indicate the presence of a threshold effect, i.e. that maternal PEM may be affected only when a certain degree of severity and duration in depressive symptoms is beyond a certain threshold. The importance of the findings in regard to the assessment of depression as well as more clinical perspectives are discussed.

Mutual regulation between infant facial affect and maternal touch in depressed and nondepressed dyads.

The ability to regulate affect is important for later adaptive child development. In the first months of life, infants have limited resources for regulating their own affects (e.g. by gaze aversion), and for this reason they are dependent on external affect regulation from their parents. Previous research suggests that touch is an important means through which parents regulate their infants' affects. Also, previous research has shown that post-partum depressed (PPD) mothers and nonclinical mothers differ in their touching behaviors when interacting with their infants. We examined the affect-regulating function of affectionate, caregiving and playful maternal touch in 24 PPD and 47 nonclinical mother-infant dyads when infants were four months old. In order to investigate the direction of effects and to account for repeated observations, the data were analysed using time-window sequential analysis and Generalized Estimating Equations. The results showed that mothers adapt their touching behaviors according to negative infant facial affect; thus, when the infant displays negative facial affect, the mothers were less likely to initiate playful touch and more likely to initiate caregiving touch. Unexpectedly, only in the PPD dyads, were the mothers more likely to initiate affectionate touch when their infants were displaying negative facial affect. Our results also showed that mothers use specific touch types to regulate infants' negative and positive affects; infants are more likely to initiate positive affect during periods with playful touch, and more likely to terminate negative affect during periods with caregiving touch.

Maternal touch in caregiving behavior of mothers with and without postpartum depression.

The way a mother touches her infant plays a central role in maternal caregiving behavior. Thus, the purpose of the present study was to examine associations between touch and positive and negative caregiving behavior and whether this association differed in mothers with and without postpartum depression, an episode of depressive disorder following childbirth. Positive caregiving behavior was operationalized as sensitive behavior, i.e. the mother's ability to notice the child's signals, interpret these signals correctly and respond to them promptly and appropriately. Negative caregiving behavior was operationalized as overriding behavior, i.e. behavior which disturbs the child's behavior or redirects the child's attention to follow the parent's agenda. Seventy mother-infant dyads (44 in the nonclinical group and 26 in the clinical group) participated in a 10minutes long mother-infant interaction at four months postpartum. The sample is part of an archival dataset of a longitudinal study investigating the parent-child relationship and child development. Three minutes of the interaction were coded a) microanalytically for touch, using a modified version of the Maternal Touch Scale (Beebe et al., 2010), and b) macroanalytically for sensitive and overriding behavior, using the Coding Interactive Behavior measure (Feldman, 1998). Hierarchical regression analyses with bootstrapping showed that caregiving touch, but not affectionate and static touch, was associated with sensitive behavior across the whole sample. Moreover, playful, but not rough-intrusive touch, was associated with overriding behavior across the whole sample. Associations did not differ between mothers with and without postpartum depression.

Relations between Automatically Extracted Motion Features and the Quality of Mother-Infant Interactions at 4 and 13 Months.

Bodily movements are an essential component of social interactions. However, the role of movement in early mother-infant interaction has received little attention in the research literature. The aim of the present study was to investigate the relationship between automatically extracted motion features and interaction quality in mother-infant interactions at 4 and 13 months. The sample consisted of 19 mother-infant dyads at 4 months and 33 mother-infant dyads at 13 months. The coding system Coding Interactive Behavior (CIB) was used for rating the quality of the interactions. Kinetic energy of upper-body, arms and head motion was calculated and used as segmentation in order to extract coarse- and fine-grained motion features. Spearman correlations were conducted between the composites derived from the CIB and the coarse- and fine-grained motion features. At both 4 and 13 months, longer durations of maternal arm motion and infant upper-body motion were associated with more aversive interactions, i.e., more parent-led interactions and more infant negativity. Further, at 4 months, the amount of motion silence was related to more adaptive interactions, i.e., more sensitive and child-led interactions. Analyses of the fine-grained motion features showed that if the mother coordinates her head movements with her infant's head movements, the interaction is rated as more adaptive in terms of less infant negativity and less dyadic negative states. We found more and stronger correlations between the motion features and the interaction qualities at 4 compared to 13 months. These results highlight that motion features are related to the quality of mother-infant interactions. Factors such as infant age and interaction set-up are likely to modify the meaning and importance of different motion features.

Postpartum depression and infant-mother attachment security at one year: The impact of co-morbid maternal personality disorders.

Previous studies on effects of postpartum depression (PPD) on infant-mother attachment have been divergent. This may be due to not taking into account the effects of stable difficulties not specific for depression, such as maternal personality disorder (PD). Mothers (N=80) were recruited for a longitudinal study either during pregnancy (comparison group) or eight weeks postpartum (clinical group). Infants of mothers with depressive symptoms only or in combination with a PD diagnosis were compared with infants of mothers with no psychopathology. Depression and PD were assessed using self-report and clinical interviews. Infant-mother attachment was assessed when infants were 13 months using Strange Situation Procedure (SSP). Attachment (in)security was calculated as a continuous score based on the four interactive behavioral scales of the SSP, and the conventional scale for attachment disorganization was used. PPD was associated with attachment insecurity only if the mother also had a PD diagnosis. Infants of PPD mothers without co-morbid PD did not differ from infants of mothers with no psychopathology. These results suggest that co-existing PD may be crucial in understanding how PPD impacts on parenting and infant social-emotional development. Stable underlying factors may magnify or buffer effects of PPD on parenting and child outcomes.

Links Among High EPDS Scores, State of Mind Regarding Attachment, and Symptoms of Personality Disorder.

Underlying persistent psychological difficulties have been found to moderate potential adverse effects of maternal postpartum depression (PPD) on parenting and infant development. The authors examined whether mothers presenting postpartum depressive symptoms showed higher levels of personality pathology and more insecure state of mind regarding attachment compared to nondepressed mothers. Participants (N = 85) were assessed with the Edinburgh Postnatal Depression Scale (EPDS), the Present State Examination, the Adult Attachment Interview, and the Structured Clinical Interview for DSM-IV Axis II. Mothers with high EPDS scores were more likely to have a preoccupied insecure state of mind and to have personality disorder compared with mothers scoring below clinical cutoff. Furthermore, multiple regression analysis showed that personality disorder and AAI classification were independently related to EPDS score, and that these two factors together accounted for 48% of the variance in EPDS score. Findings are discussed in terms of heterogeneity in PPD populations and underline the importance of examining potential coexisting psychological difficulties when studying PPD.