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Interpersonal Family Dynamics Relate to Hippocampal CA Subfield Structure
Christine Coughlin1, Eliya Ben-Asher2, Hannah E Roome1
1Center for Learning and Memory, The University of Texas at Austin, Austin, TX, United States.
Frontiers in Neuroscience
|July 5, 2022
Summary
Positive family dynamics are linked to larger hippocampal CA subfields in children and adults. This research highlights how everyday social environments impact brain structure, specifically the hippocampus.
Area of Science:
- Neuroscience
- Developmental Psychology
- Social Neuroscience
Background:
- Extreme social environments (enriched or adverse) affect hippocampal volume.
- Limited understanding exists regarding the impact of normative social environments on hippocampal structure.
Purpose of the Study:
- To investigate if hippocampal volume correlates with typical variations in interpersonal family dynamics.
- To explore this relationship across different age groups (children and adults).
Main Methods:
- Examined hippocampal subfield volumes in relation to interpersonal family dynamics.
- Recruited participants from the general population, including 7- to 12-year-olds and adults.
- Controlled for socioeconomic status in the analysis.
Main Results:
- More positive perceptions of family dynamics were associated with larger volumes in hippocampal CA1 and CA2/3 subfields.
- This association was observed irrespective of participant age.
- Socioeconomic status did not alter this relationship.
Conclusions:
- Hippocampal subfields, particularly CA1 and CA2/3, are sensitive to normal variations in social environments.
- Interpersonal family dynamics represent a significant environmental factor influencing hippocampal structure.
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