Large genome-wide study finds personality-linked variants
Nature
A meta-analysis of 46 cohorts identified 1,260 variants associated with the Big Five personality traits.
Based on: Nature
Verdict
Misleading
Verification confidenceHigh
Explanation
DNA helps shape personality, but it does not determine who someone becomes. The new study found many genetic associations, not a fixed genetic blueprint for character.
Researchers analyzed 46 cohorts with up to 1.14 million participants and identified 1,260 variants associated with the Big Five personality traits. Common variants explained about 4.8% to 9.3% of measured differences for typical trait measures, rising to about 13.3% after accounting for measurement reliability.
The results describe patterns across large populations and cannot reliably read an individual's personality from DNA. Environment, life experience and personal choices remain substantial influences, and the authors cautioned against using the findings to assess individuals.
Key takeaway
Genes contribute to personality, but they are only part of the picture. DNA cannot currently predict an individual's character.
Evidence
Supports the claim
Genetic variants explain only part of personality differences
Nature and TIME
The measured common variants explained a modest share of personality variation, while the evidence continued to show a substantial environmental contribution.
Based on: TIME · Nature
The findings cannot predict an individual's personality
University of Bristol
The researchers said the population-level associations cannot read an individual's personality from DNA and should not be used for individual assessment.
Based on: University of Bristol
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