Summary: Researchers studying 140 families examined both behavioral and brain-to-brain synchrony to clarify how parent and child interactions align at observable and neural levels. The findings indicate that higher neural synchrony does not always reflect better interaction quality: mothers who display insecure attachment traits showed increased brain-to-brain synchrony with their children, which the researchers interpret as a possible neural compensation for less coordinated behavior. The study also found distinct patterns for mothers and fathers—mothers and children tended to show stronger behavioral synchrony, while fathers and children exhibited greater neural synchrony—highlighting diverse strategies families use to connect emotionally and regulate interactions.
Key Facts:
- Mothers with insecure attachment representations showed higher parent–child neural synchrony, suggesting a compensatory neural process when behavioral attunement is reduced.
- Father–child pairs demonstrated stronger interpersonal neural synchrony, while mother–child pairs displayed stronger observable behavioral synchrony, pointing to different bonding and interaction patterns by parent gender.
- The study emphasizes the importance of understanding an optimal range of synchrony: both too little and excessive synchrony may indicate relationship or interaction difficulties rather than uniformly positive outcomes.
Source: University of Essex
New research shows more synchrony between parents and children is not always better.
A team at the University of Essex measured how parents and young children align across behavior and brain activity during shared problem-solving. The study used behavioral coding and hyperscanning with functional near-infrared spectroscopy (fNIRS) to capture interpersonal neural synchrony (INS) while parents and their children—aged five to six—worked together on puzzles and solved tasks either cooperatively or individually.
Published in Developmental Science, the study reports that interpersonal neural synchrony increased during cooperative problem-solving across dyads. However, individual differences in attachment representations were linked to neural synchrony but not to behavioral synchrony during cooperative interactions.
Dr. Pascal Vrticka from the Department of Psychology explains: “Sensitive, mutually attuned interactions are central to secure child attachment development. When a parent—here, the mother—has more insecure attachment traits, achieving optimal behavioral synchrony with the child can be more difficult. Increased brain-to-brain synchrony in these cases may reflect a neural compensation mechanism that helps overcome less attuned behavioral interaction.”
The research team observed notable parent-gender differences: father–child pairs tended to show stronger neural synchrony, while mother–child pairs showed stronger observable, behavioral synchrony. The authors suggest that higher father–child neural synchrony may act as a compensatory strategy offsetting a relative lack of behavioral alignment.
Researchers emphasize the translational potential of these findings. Dr. Vrticka is preparing collaborative work with the NHS to extend this line of inquiry into families with neurodivergent children and children with care or adoption experiences. The goal is to identify behavioral and neurobiological markers of an optimal synchrony range to guide interventions that support healthier parent–child relationships and attachment development. Importantly, the researchers caution that both low and excessively high synchrony can signal interaction challenges.
Attachment in parents was evaluated via the Adult Attachment Interview, while children’s attachment representations were assessed using a story-completion task. Parent–child neural synchrony was derived from fNIRS hyperscanning, and parent–child interactions were video recorded and coded for behavioral synchrony.
The study was led by Dr. Trinh Nguyen (Italian Institute of Technology, Rome) and Dr. Melanie Kungl (University of Erlangen-Nuremberg), with collaborators from Vienna, Berlin, and Leipzig.
About this parenting and psychology research news
Author: Ben Hall
Source: University of Essex
Contact: Ben Hall – University of Essex
Image: The image is credited to Neuroscience News
Original Research: Open access. “Visualizing the invisible tie: Linking parent–child neural synchrony to parents’ and children’s attachment representations” by Pascal Vrticka et al., Developmental Science.
Abstract
Visualizing the invisible tie: Linking parent–child neural synchrony to parents’ and children’s attachment representations
Attachment theory posits that individual differences in attachment representations shape behavior during social interaction. Secure attachment supports behavioral synchrony, an essential element of adaptive parent–child exchanges. Yet how attachment representations relate to the dynamic neural processes of interaction has been less clear.
This study examined whether interpersonal neural synchrony (INS) and behavioral synchrony during parent–child interaction relate to parent and child attachment representations. The sample included 140 parents (74 mothers, 66 fathers) and their children aged five to six years (60 girls, 80 boys). Dyads engaged in cooperative and individual problem-solving while INS in frontal and temporal brain regions was measured with fNIRS hyperscanning. Parents completed the Adult Attachment Interview and children completed a story-completion attachment task. Video recordings were coded to derive behavioral synchrony scores.
Results showed increased INS during cooperative versus individual problem-solving across dyads. Individual differences in attachment representations were associated with INS but not with behavioral synchrony during cooperative tasks. Specifically, insecure maternal attachment representations related to higher mother–child INS in frontal regions, while secure daughter attachment representations were associated with higher daughter–parent INS in temporal regions. These findings support INS as a promising correlate for probing the neurobiological underpinnings of attachment representations within early parent–child interactions.