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Adversity is Linked with Decreased Parent-Child Behavioral and Neural Synchrony
Caroline P Hoyniak1, Laura E Quiñones-Camacho1, M Catalina Camacho1
1Washington University in St. Louis School of Medicine, United States.
Insights
Adversity negatively impacts parent-child synchrony, affecting both behavioral interactions and neural activity in the prefrontal cortex. This study highlights how socioeconomic and familial risks disrupt these crucial early developmental connections.
Area of Science:
- Developmental Neuroscience
- Psychology
- Child Development
Background:
- Parent-child synchrony, characterized by contingent responding and co-regulation, is linked to positive child outcomes.
- While adversity's impact on behavioral synchrony is known, neural mechanisms remain understudied.
- Understanding these neural pathways is crucial for identifying risks and interventions.
Purpose of the Study:
- To investigate the association between adversity, behavioral parent-child synchrony, and neural synchrony.
- To examine neural synchrony in lateral prefrontal cortical regions during a parent-child interaction task.
- To explore how sociodemographic and familial risks influence these synchrony measures.
Main Methods:
- Used functional near-infrared spectroscopy (fNIRS) hyperscanning in 115 parent-child dyads (ages 4-5).
- Quantified behavioral synchrony by time spent in reciprocal communication and coordinated behaviors.
- Measured neural synchrony via hemodynamic concordance in lateral prefrontal cortex activation during a stress and recovery task.
Main Results:
- Adversity, encompassing sociodemographic and familial risks, was associated with reduced parent-child behavioral synchrony.
- Sociodemographic risk specifically correlated with decreased parent-child neural synchrony during induced stress.
- Findings demonstrate a link between adversity and diminished behavioral and neural synchrony.
Conclusions:
- Adversity disrupts both observable parent-child interactions and underlying neural coordination.
- Sociodemographic factors appear particularly influential on neural synchrony under stress.
- These results underscore the pervasive impact of adversity on early parent-child relationship dynamics.
Abstract:
Parent-child synchrony-parent-child interaction patterns characterized by contingent social responding, mutual responsivity, and co-regulation-has been robustly associated with adaptive child outcomes. Synchrony has been investigated in both behavioral and biological frameworks. While it has been demonstrated that adversity can influence behavioral parent-child synchrony, the neural mechanisms by which this disruption occurs are understudied. The current study examined the association between adversity, parent-child behavioral synchrony, and parent-child neural synchrony across lateral prefrontal cortical regions using functional near-infrared spectroscopy hyperscanning during a parent-child interaction task that included a mild stress induction followed by a recovery period. Participants included 115 children (ages 4-5) and their primary caregivers. Parent-child behavioral synchrony was quantified as the amount time the dyad was synchronous (e.g., reciprocal communication, coordinated behaviors) during the interaction task. Parent-child neural synchrony was examined as the hemodynamic concordance between parent and child lateral PFC activation. Adversity was examined across two, empirically-derived domains: sociodemographic risk (e.g., family income) and familial risk (e.g., household chaos). Adversity, across domains, was associated with decreased parent-child behavioral synchrony across task conditions. Sociodemographic risk was associated with decreased parent-child neural synchrony in the context of experimentally-induced stress. These findings link adversity to decreased parent-child behavioral and neural synchrony.
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