Developing self-regulation in a dysregulating world: Attachment and Biobehavioral Catch-up for a toddler in foster care

Interpersonal neural synchrony and mental disorders: unlocking potential pathways for clinical interventions

Introduction

Interpersonal synchronization involves the alignment of behavioral, affective, physiological, and brain states during social interactions. It facilitates empathy, emotion regulation, and prosocial commitment. Mental disorders characterized by social interaction dysfunction, such as Autism Spectrum Disorder (ASD), Reactive Attachment Disorder (RAD), and Social Anxiety Disorder (SAD), often exhibit atypical synchronization with others across multiple levels. With the introduction of the "second-person" neuroscience perspective, our understanding of interpersonal neural synchronization (INS) has improved, however, so far, it has hardly impacted the development of novel therapeutic interventions.

Methods

To evaluate the potential of INS-based treatments for mental disorders, we performed two systematic literature searches identifying studies that directly target INS through neurofeedback (12 publications; 9 independent studies) or brain stimulation techniques (7 studies), following PRISMA guidelines. In addition, we narratively review indirect INS manipulations through behavioral, biofeedback, or hormonal interventions. We discuss the potential of such treatments for ASD, RAD, and SAD and using a systematic database search assess the acceptability of neurofeedback (4 studies) and neurostimulation (4 studies) in patients with social dysfunction.

Results

Although behavioral approaches, such as engaging in eye contact or cooperative actions, have been shown to be associated with increased INS, little is known about potential long-term consequences of such interventions. Few proof-of-concept studies have utilized brain stimulation techniques, like transcranial direct current stimulation or INS-based neurofeedback, showing feasibility and preliminary evidence that such interventions can boost behavioral synchrony and social connectedness. Yet, optimal brain stimulation protocols and neurofeedback parameters are still undefined. For ASD, RAD, or SAD, so far no randomized controlled trial has proven the efficacy of direct INS-based intervention techniques, although in general brain stimulation and neurofeedback methods seem to be well accepted in these patient groups.

Discussion

Significant work remains to translate INS-based manipulations into effective treatments for social interaction disorders. Future research should focus on mechanistic insights into INS, technological advancements, and rigorous design standards. Furthermore, it will be key to compare interventions directly targeting INS to those targeting other modalities of synchrony as well as to define optimal target dyads and target synchrony states in clinical interventions.

Foster children avoidance-related interactive behaviors with caregivers

BACKGROUND

A lot of the research concerning foster children - often children who have suffered maltreatment in the family home - has focused on internalized and externalized symptoms. Few studies, however, have looked at the interactions between such children and caregivers.

PURPOSE

The purpose of this study is to explore the Emotion Regulation Strategies (ERS) of children in foster care and to highlight those most commonly employed in family or placement contexts. The parents' and foster carers' ERS are also analyzed in order to understand the co-regulatory processes at work.

METHOD

An in-depth analysis of observation sequences was performed. Three data collection times, spaced across a period of 6 months (t1, t2 and t3), were included in the observation protocol. Each observation, recorded using a video camera, comprised 45 min of free time and 15 min of structured tasks. Transcription and coding of ERS were performed for each sequence using a microanalytical method. Both children's and adults' ERS were coded.

RESULTS

Children tended to be readily distracted when interacting with adults, and more particularly so with their parents. While they tended to display relatively normative processes with a foster carer, they turned to pathological avoidance mechanisms with their parents such as physical venting or self-stimulation. Interactions during structured tasks showed a significant reduction in distraction processes.

CONCLUSION

This study highlights the prevalence of distraction behavior in foster children during their interactions with caregivers, and offers an insight into how structured interactions provide a framework that mitigates children's avoidance behaviors and so enhances adult-child collaboration.

Early adversity, child neglect, and stress neurobiology: From observations of impact to empirical evaluations of mechanisms

Research on the effects of early life adversity, and in particular on the absence of responsive caregiving, has shown long-term impacts on well-being and development. These investigations have been conducted both in human populations and in animal models. The work has demonstrated that neglect experienced in the early years can affect not only behavior but also neurobiological functioning. In particular, studies of children in the foster care system show convergence with research on children adopted following institutional rearing in terms of dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, which produces the neuroendocrine hormone cortisol. The characteristic pattern that has been most commonly observed involves diminished diurnal cortisol production, particularly in terms of low levels of cortisol upon awakening. Notably, however, a number of evidence-based interventions for infant, toddler, and preschool-aged foster children have been shown to produce more typical patterns of cortisol production, in combination with improved behavioral, socioemotional, and foster care placement outcomes. In this paper, we review the literature on the effects of early disruptions in care on biobehavioral development, and summarize the results of the interventions for young foster children.