Adult Attachment Styles Associated with Brain Activity in Response to Infant Faces in Nulliparous Women: An Event-Related Potentials Study.

Yuanxiao Ma,Guangming Ran,Xu Chen,Haijing Ma,Na Hu

doi:10.3389/fpsyg.2017.00627

Abstract

Adult attachment style is a key for understanding emotion regulation and feelings of security in human interactions as well as for the construction of the caregiving system. The caregiving system is a group of representations about affiliative behaviors, which is guided by the caregiver’s sensitivity and empathy, and is mature in young adulthood. Appropriate perception and interpretation of infant emotions is a crucial component of the formation of a secure attachment relationship between infant and caregiver. As attachment styles influence the ways in which people perceive emotional information, we examined how different attachment styles associated with brain response to the perception of infant facial expressions in nulliparous females with secure, anxious, and avoidant attachment styles. The event-related potentials of 65 nulliparous females were assessed during a facial recognition task with joy, neutral, and crying infant faces. The results showed that anxiously attached females exhibited larger N170 amplitudes than those with avoidant attachment in response to all infant faces. Regarding the P300 component, securely attached females showed larger amplitudes to all infant faces in comparison with avoidantly attached females. Moreover, anxiously attached females exhibited greater amplitudes than avoidantly attached females to only crying infant faces. In conclusion, the current results provide evidence that attachment style differences are associated with brain responses to the perception of infant faces. Furthermore, these findings further separate the psychological mechanisms underlying the caregiving behavior of those with anxious and avoidant attachment from secure attachment.

Highlights

Just like the basic needs for food and water in our evolutionary history, the need to be loved and cared for is deeply rooted in individual psychology, especially in infancy
There was a significant interaction between attachment style and infant facial expression [F(4,124) = 2.46, p = 0.049, η2 = 0.073], but a simple effects analysis indicated that there were no differences among attachment styles for the infant faces
While the analysis of infant facial expressions within each attachment style showed that securely attached participants’ responses to joy (277.97 ± 24.45 ms) and crying (281.05 ± 23.60 ms) infant faces were faster than to neutral ones (297.87 ± 23.74 ms) (p = 0.006 and 0.056, respectively), anxiously attached participants’ responses to crying (306.23 ± 23.60 ms) infant faces were faster than to joy (324.03 ± 24.45 ms) and neutral ones (328.72 ± 23.74 ms) (p = 0.032 and 0.012, respectively), while there was no significant difference among infant facial expressions in avoidantly attached participants

Summary

Introduction

Just like the basic needs for food and water in our evolutionary history, the need to be loved and cared for is deeply rooted in individual psychology, especially in infancy. Interactions with environmental stimuli, previous attachment experiences, and hormonal and neurobiological changes create a sensitive period that pushes the caregiving system toward maturity (Ammaniti et al, 2000; Grossmann et al, 2006; Lenzi et al, 2013). Through such transformations, late adolescents and young adults, females, show thoughtfulness concerning mothering and they start to present themselves as future parents (George and Solomon, 1999; Lenzi et al, 2013)

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