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Sensitive infant care tunes a frontotemporal interbrain network in adolescence
Linoy Schwartz1, Olga Hayut1, Jonathan Levy1,2
1Center for Developmental Social Neuroscience, Reichman University, Herzliya, 0460101, Israel.
Scientific Reports
|September 30, 2024
Summary
Early maternal sensitivity enhances adolescent mother-child brain synchrony, while intrusiveness attenuates it. This impacts the neural network supporting social communication and affiliation.
Area of Science:
- Neuroscience
- Developmental Psychology
- Social Interaction
Background:
- Early caregiving significantly shapes children's development.
- Maternal behavior, specifically sensitivity and intrusiveness, has lasting effects on social-emotional outcomes.
- Interbrain synchrony, a measure of neural coupling between individuals, is crucial for social communication.
Purpose of the Study:
- To investigate the longitudinal association between early maternal behavior and adolescent mother-child interbrain synchrony.
- To examine how maternal sensitivity and intrusiveness in infancy influence neural synchrony in adolescence.
- To explore the role of the frontotemporal interbrain network in mediating these effects.
Main Methods:
- Longitudinal study tracking mother-infant interactions from infancy to adolescence.
- Maternal sensitivity and intrusiveness coded from home videos using the Coding Interactive Behavior Manual.
- Mother-adolescent interbrain synchrony measured via hyperscanning electroencephalography (EEG) during a positive interaction in early adolescence.
Main Results:
- Maternal sensitivity in infancy predicted enhanced interbrain synchrony within the right frontotemporal network in adolescence.
- Maternal intrusiveness in infancy predicted attenuated interbrain synchrony in the same network.
- Specifically, maternal sensitivity was linked to increased frontal-frontal connectivity, vital for social communication.
Conclusions:
- Early maternal sensitivity and intrusiveness have enduring effects on the development of mother-child neural synchrony.
- These maternal orientations shape the adolescent frontotemporal interbrain network, influencing social communication and affiliation.
- The findings suggest that maternal caregiving styles tune the child's brain to sociality, with long-term implications.
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