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the claim
Autism spectrum disorder is primarily caused by genetic factors
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
5 sources for · 0 against

Autism spectrum disorder is widely supported by genetic and genomic research to be primarily driven by heritable genetic factors, including both common polygenic variants and rare high-impact mutations, alongside interacting environmental influences.

Evidence for · 5
Genome-Wide Association Study for Autism Spectrum Disorder in Taiwanese Han Population
2015 · cited by 45
Paper 0 identifies specific gene regions and variants associated with autism spectrum disorder risk in the Taiwanese Han population.
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The analysis

The retrieved literature consistently emphasizes the strong genetic heritability of autism spectrum disorder (ASD), identifying numerous genome-wide significant loci, candidate genes, and polygenic risk scores. While environmental factors are recognized as interacting contributors, the core scientific consensus reflected across the papers supports the primary role of genetic architecture in ASD etiology.

More for · 4
Quantitative genome-wide association study of six phenotypic subdomains identifies novel genome-wide significant variants in autism spectrum disorder
2020 · cited by 26
Paper 2 demonstrates that ASD subdomains possess substantial SNP-based genetic heritability and are shaped by polygenic risk scores.
Autism Spectrum Disorder: Integrating Genetic and Environmental Risk.
2026 · cited by 0
Paper 7 notes that while environmental factors interact with risk, accumulating evidence points to high heritability and genetic susceptibility in ASD.
Unraveling the Genetic and Molecular Architecture of Autism Spectrum Disorder: Implications for Clinical Genetics and Genomic Diagnostics.
2026 · cited by 0
Paper 10 outlines the complex genetic architecture of ASD, including chromosomal abnormalities, copy number variants, and specific single-nucleotide variants.
Autism Spectrum Disorder in the Genomic Era: A Comprehensive Review of Etiology, Precision Diagnostics, Clinical Outcomes, and Emerging Gene-Editing Therapies.
2026 · cited by 0
Paper 11 synthesizes robust evidence confirming strong genetic contributions from both common polygenic risk and high-impact rare mutations.
Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. Genome-Wide Association Study for Autism Spectrum Disorder in Taiwanese Han Populationpeer-reviewedsupports
  2. Genome‐wide association study of facial emotion recognition in children and association with polygenic risk for mental health disorderspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Quantitative genome-wide association study of six phenotypic subdomains identifies novel genome-wide significant variants in autism spectrum disorderpeer-reviewedsupports
  4. Genetically identified mediators associated with increased risk of stroke and cardiovascular disease in individuals with autism spectrum disorder.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Genome-Wide association study (GWAS) identified PCOS susceptibility variants and replicates reported risk variantspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Genomic basis of developmental defects of enamel and sex-specific effectspeer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Neonatal testosterone exposure modulates exploration and object avoidance without exacerbating autism-like behavior in Shank3b-deficient mice.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. Autism Spectrum Disorder: Integrating Genetic and Environmental Risk.peer-reviewedsupports
  9. From genes to networks: neurobiological bases of neurodiversity across common developmental disorders.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Role of Mast Cells and Neuroinflammation in Neuropsychiatric Disorders of the Developmental Period.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Unraveling the Genetic and Molecular Architecture of Autism Spectrum Disorder: Implications for Clinical Genetics and Genomic Diagnostics.peer-reviewedsupports
  12. Autism Spectrum Disorder in the Genomic Era: A Comprehensive Review of Etiology, Precision Diagnostics, Clinical Outcomes, and Emerging Gene-Editing Therapies.peer-reviewedsupports
The paper trail · every fact has a biography
first checked06 Aug 2026
judged → SUPPORTED · 8606 Aug 2026
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