Insecure-avoidant Infants Research Articles

Parent mind-mindedness, sensitivity, and infant affect: Implications for attachment with mothers and fathers

Previous research examining links between parenting and attachment has focused on behavioral aspects of parenting such as sensitivity. However, by assessing how parents reflect on infants’ mental states (mind-mindedness) we gain a broader understanding of parenting and how it impacts attachment. Mothers, fathers, and their infants (N = 135) participated in the Still Face Paradigm (SFP) at 3-, 5-, and 7- months of age, and the Strange Situation with mothers at 12 months and fathers at 14 months. Parent sensitivity and infant affect were coded from the SFP and all videos were transcribed and later coded for parents’ use of appropriate and non-attuned mind-mindedness toward their infants. Attachment with each parent was coded from the Strange Situation. Mixed effects models examined trajectories of parents’ mind-mindedness in relation to parent sensitivity and infant affect across attachment groups. Significant differences between parent gender and attachment category were detected. Specifically, parents who were less sensitive were also less mind-minded toward insecure-avoidant infants; parents used more non-attuned mind-mindedness when infants had higher negative affect. Findings suggest that, in addition to parent sensitivity, parents’ use of appropriate and non-attuned mind-mindedness during a parent-infant interaction provides insight into the developing attachment relationship for mothers and fathers.

Temperamental precursors of infant attachment with mothers and fathers

The degree to which parent sensitivity and infant temperament distinguish attachment classification was examined. Multilevel modeling was used to assess the effect of parent sensitivity and infant temperament on infant–mother and infant–father attachment. Data were collected from mothers, fathers, and their infants (N=135) when the infant was 3-, 5-, 7-, 12-, and 14-months old. Temperament was measured using the Infant Behavior Questionnaire-Revised (Gartstein & Rothbart, 2003); parent sensitivity was coded during the Still Face Paradigm (Tronick, Als, Adamson, Wise, & Brazelton, 1978); attachment was coded using the Strange Situation (Ainsworth, Blehar, Waters, & Wall, 1978). Results indicate that mothers and fathers were less sensitive with insecure-avoidant infants. Whereas only one difference was found for infant–mother attachment groups and temperament, five significant differences emerged for infant–father attachment groups, with the majority involving insecure-ambivalent attachment. Infants classified as ambivalent with fathers were higher in perceptual sensitivity and cuddliness and these infants also showed a greater increase in low-intensity pleasure over time compared with other infants. Results indicate the importance of both parent sensitivity and infant temperament, though operating in somewhat different ways, in the development of the infant–mother and infant–father attachment relationship.

The development of negative reactivity in irritable newborns as a function of attachment

This longitudinal study builds on existing research exploring the developmental course of infants’ negative reactivity to frustration in a sample of 84 irritable infants. We investigated whether infants’ negative reactivity to frustration differed during the first year as a function of infant attachment classification. Various elements of the designs of previous studies investigating negative reactivity and attachment preclude the strong conclusion that negative reactivity develops differently as a function of attachment. Thus, we utilized the same observational assessment of infant negative reactivity, conducted without parental involvement, at 5 and 12 months. One proposition, based in attachment theory (Bowlby, 1969/1982; Cassidy, 1994), is that relative to secure infants, insecure-avoidant infants come to minimize their negative emotional reactions, whereas insecure-ambivalent infants come to maximize their negative emotional reactions. As expected, we found that at 5 months, attachment groups did not differ in reactivity, but at 12 months, insecure-avoidant infants were the least reactive, followed by secure infants, and insecure-ambivalent infants were the most reactive. Results are discussed in terms of conceptualizing the development of emotion regulation and their implications for future research.

Attachment and Infant Night Waking: A Longitudinal Study From Birth Through the First Year of Life

: Night wakings are common in infancy. Although a link between infant night wakings and attachment to the primary caregiver has been previously proposed, empirical support is limited so far. The aim of this longitudinal study was to examine the early history of night waking in infants who were later classified as securely or insecurely (avoidantly, resistantly, or disorganized) attached. : Participants in the study were 193 infants and their mothers. Information on infant night wakings was collected with the use of daily sleep diaries for the first 6 months of life and again for 2 weeks at 12 months of age. Infant-mother attachment was assessed using the Strange Situation (Ainsworth et al, Patterns of Attachment: A Psychological Study of the Strange Situation. New York: Hillsdale; 1978) when the infants were 12 months of age. : Longitudinal regression analyses showed that, after controlling for many covariates, infants with an insecure-resistant attachment at 12 months of age awoke more during the night in their first 6 months of life than the other infants. Furthermore, infants with different attachment classifications developed different patterns of night wakings over the first 6 months, with the insecure-avoidant infants waking the least toward the end of the 6 months. Hierarchical multiple regression analyses showed no associations between attachment and night wakings at 12 months of age. : This study is the first in showing that attachment at 12 months of age is related to infant night waking patterns in the first 6 months of life. Patterns of infant night wakings early in life apparently reflect the emerging attachment relationship.

Individual Differences in Infants' Joint Attention Behaviors With Mother and a New Social Partner.

Relations between infant-mother attachment security at 15 months and infants' (N = 206) joint attention behaviors (a) with an experimenter at 8 and 15 months, and (b) with their mothers at 15 months were investigated. No concurrent or longitudinal relations were observed between attachment security and infants' tendency to respond to an experimenter's bids for joint attention. Higher levels of initiating joint attention with an experimenter at 15 months were associated with insecure-avoidant attachment. Insecure-avoidant attachment was also associated with lower scores for initiating high-level joint attention behaviors (pointing, showing, and giving) with the mother at age 15 months. The fact that security-related differences in initiating joint attention with an experimenter were observed only once the attachment relationship was consolidated suggests that (a) attachment security may influence infants' active engagement with new social partners, and (b) insecure-avoidant infants may compensate for reduced social contact with the caregiver by initiating more interaction with other social partners.

Attachment patterns and emotion regulation strategies in the second year

With the aim of studying the relationship between methods of emotion regulation and quality of attachment we examined 39 infants with different patterns of attachment, of whom 20 were classified as secure (B), 12 as avoidant (A) and 7 as resistant (C), assessing the regulatory strategies adopted by them during the Strange Situation at 13 months. Secure infants used strategies of positive social engagement more than insecure avoidant infants, while resistant infants displayed greater negative social engagement and less object orientation than the other two groups. Avoidant infants adopted positive and negative hetero-regulatory strategies less than the other groups, also differing from resistant infants in their greater use of object regulatory strategies. There were no significant differences as regards self-comforting regulation. Thus, the findings showed how the most significant differences to emerge between the groups concerned hetero-regulatory strategies, developed by the infant in interaction with attachment figures, and regulatory strategies oriented towards objects. Further analysis showed how the use by part of each attachment group of the emotion regulation strategies varies, differentiating the episodes of the SSP according to their level of stress.

At the Intersection of Social and Cognitive Development: Internal Working Models of Attachment in Infancy

Three visual habituation studies using abstract animations tested the claim that infants' attachment behavior in the Strange Situation procedure corresponds to their expectations about caregiver-infant interactions. Three unique patterns of expectations were revealed. Securely attached infants expected infants to seek comfort from caregivers and expected caregivers to provide comfort. Insecure-resistant infants not only expected infants to seek comfort from caregivers but also expected caregivers to withhold comfort. Insecure-avoidant infants expected infants to avoid seeking comfort from caregivers and expected caregivers to withhold comfort. These data support Bowlby's (1958) original claims-that infants form internal working models of attachment that are expressed in infants' own behavior.

Parasympathetic and sympathetic responses to the strange situation in infants and mothers from avoidant and securely attached dyads

Vagal reactivity and salivary alpha-amylase (sAA) were assessed in infants (M age = 13.55 months) and their mothers during the Strange Situation Paradigm (SSP) to investigate differences in physiological responses in a sample of insecure-avoidant and securely-attached dyads (N = 132). Infants classified as insecure-avoidant had significantly higher vagal withdrawal during the SSP and higher sAA overall, suggesting that the avoidant attachment pattern is associated with a greater allostatic load. During separation episodes of the SSP, all mothers showed significant vagal withdrawal, suggesting greater attempts at regulation. During the last reunion, typically the most stressful episode for infants, mothers of secure infants showed greater vagal withdrawal than mothers of insecure-avoidant infants, suggesting greater attempts by these mothers at interactive repair. Results for mothers and infants supported the allostatic load theory.

Heart Rate Correlates of Attachment Status in Young Mothers and Their Infants

To explore heart rate (HR) correlates of attachment behavior in young mothers and their infants to generate specific hypotheses and to provide pilot data on which studies to test those hypotheses might be based. Using the strange situation procedure, patterns of attachment were assessed in 41 low-income adolescent mothers and their infants. During the procedure, the HRs of the infants and mothers were recorded. The HR changes were analyzed and infant attachment group differences were examined. Infants in all attachment groups demonstrated a similar HR response. There were, however, notably different behavioral reactions in the insecure groups: relatively increased behavioral distress in the insecure/resistant infants and relatively decreased behavioral distress in insecure-avoidant infants. Mothers of insecure-resistant infants demonstrated elevated HRs during reunions and the insecure/resistant dyads demonstrated lower consistency between HR changes in infant and mother than the secure dyads. The results suggest the discrepancy between attachment-related behavioral reactions and HR response in insecurely attached infants. Maternal and dyadic HR changes vary between the attachment groups.

Biobehavioral Organization in Securely and Insecurely Attached Infants

Attachment research has shown the emergence of individual differences in the security of infant-mother attachment during the first year of life as well as their importance for later social-emotional development. A biobehavioral perspective may help settle disagreements about the validity and interpretation of 12-month-old infants' different behavioral patterns of attachment assessed by Ainsworth's Strange Situation. It was shown that, despite less overt distress in insecure-avoidant infants after short separations from the mother, overall cardiac measures indicate arousal patterns similar to the secure infants during separation. However, differences in cardiac response emerged with regard to object versus person orientation during reunion. Additionally, findings of increased cortisol in both insecure-avoidant and disorganized infants support the theoretical interpretation that these infants, in contrast to secure infants, lack an appropriate coping strategy.

Origins of attachment: maternal interactive behavior across the first year.

This study built on attachment theory and previous research in examining the interactional origins of the secure, insecure-resistant, and insecure-avoidant patterns of attachment. Maternal sensitive responsivity, rejection, and activity were the focus of repeated naturalistic observations when infants were 1, 4, and 9 months of age; quality of attachment was assessed at 1 year. Mothers of secure 1-year-olds were observed to be more sensitively responsive at 1 and 4 months and less rejecting at 1 and 9 months than mothers of insecure infants. Mothers of insecure-avoidant infants were more rejecting at 9 months, whereas mothers of insecure-resistant infants were least sensitively responsive and most rejecting at 1 month; the insecure groups were also differentiated on the basis of patterns of change from 1 to 9 months, with mothers of resistant infants becoming less rejecting and mothers of avoidant infants becoming more rejecting relative to other mothers.

Are Insecure-Avoidant Infants with Extensive Day-Care Experience Less Stressed by and More Independent in the Strange Situation?

In order to test the hypothesis that elevated ratings of avoidance and classifications of insecure-avoidant attachments of infants with extensive infant day-care histories may be the result of the fact that children with routine experiences of separation are less stressed by, and more independent in, the Strange Situation than more traditionally reared infants, 2 groups of 12-month-old infants with insecure-avoidant attachments were compared on 2 behavioral indices in each reunion-with-mother episode of the Strange Situation. 9 infants experienced less than 20 hours per week of nonparental care in their first year, and 11 infants experienced 20 or more hours of care. Contrary to propositions advanced by Clarke-Stewart, Thompson, and others, insecure-avoidant infants with extensive nonparental care experience whimpered, fussed, and cried more and engaged in object play less in each reunion episode than their insecure-avoidant counterparts with less nonparental care experience. These results are discussed in terms of the recent controversy surrounding infant day-care in the United States.

Are Insecure-Avoidant Infants with Extensive Day-Care Experience Less Stressed by and More Independent in the Strange Situation?

Are Insecure-Avoidant Infants with Extensive Day-Care Experience Less Stressed by and More Independent in the Strange Situation?