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Updated: Feb 24, 2026
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Array Comparative Genomic Hybridization Array CGH for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
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The Association of Environmental Variables with Intelligence and Well-Being in Copy Number Variation (CNV) Carriers
Yelyzaveta Snihirova1, Sebastien Jacquemont2, Gabriëlla Blokland3
1Maastricht University.
Research Square
|February 23, 2026
Summary
Environmental factors like socioeconomic status and stress interact with Copy Number Variants (CNVs) to affect fluid intelligence and well-being. Understanding these gene-environment interactions can guide personalized interventions for individuals with genetic predispositions.
Area of Science:
- Genetics and Genomics
- Neuroscience
- Psychiatry
Background:
- Copy Number Variants (CNVs) are structural genomic alterations associated with cognitive deficits and neurodevelopmental disorders.
- Environmental factors, including socioeconomic status (SES), stress, and lifestyle, significantly modulate the impact of CNVs.
- Fluid intelligence and well-being are key indicators of cognitive and psychosocial functioning, influenced by both genetic and environmental elements.
Purpose of the Study:
- To investigate the interactive effects of common pathological CNVs and environmental variables (SES, stress, lifestyle) on fluid intelligence and well-being.
- To identify specific gene-environment interactions that influence cognitive and psychosocial outcomes in CNV carriers.
- To lay the groundwork for personalized interventions aimed at enhancing resilience in genetically at-risk individuals.
Main Methods:
- Utilized UK Biobank data for a large-scale analysis of CNV carriers and non-carriers.
- Focused on common pathological CNVs: 1q21.1 distal, 15q11.2, 15q13.3 BP4-BP5, 16p11.2 (proximal and distal), and 22q11.2 (proximal and distal).
- Employed ANOVA models with interaction terms to assess the impact of CNV status and environmental factors on fluid intelligence and well-being.
Main Results:
- Socioeconomic status (SES) showed complex interactions with CNV status, notably affecting fluid intelligence in 16p11.2 distal deletion carriers.
- Stress levels interacted with CNV type; higher adulthood stress correlated with increased fluid intelligence in 16p11.2 proximal duplication carriers.
- A healthy lifestyle moderated fluid intelligence in 15q11.2 deletion carriers, who exhibited lower scores compared to non-carriers.
Conclusions:
- Environmental factors significantly interact with specific Copy Number Variants to shape fluid intelligence and well-being.
- These gene-environment interactions highlight potential targets for personalized interventions to support cognitive and emotional resilience.
- The findings underscore the importance of considering both genetic and environmental contexts for understanding neurodevelopmental outcomes.
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