Ilmuwan Temukan Fakta Baru, Faktor Genetik Berperan Paling Besar terhadap Kepribadian Seseorang
Penelitian internasional yang dipimpin Revived Genomics of Personality Consortium mengidentifikasi lebih dari 1.200 varian genetik terkait lima sifat Big Five personality traits dari data 46 kohort di seluruh dunia, membuktikan bahwa faktor genetik berperan jauh lebih besar dari yang diperkirakan sebelumnya terhadap kepribadian seseorang. Temuan ini juga menunjukkan tumpang tindih antara varian genetik kepribadian dengan berbagai hasil kehidupan seperti kesehatan, pendidikan, karier, dan pendapatan, meski faktor lingkungan tetap diakui berperan kuat. Peneliti utama Ted Schwaba menekankan tidak ada satu 'gen kepribadian' tunggal melainkan ribuan varian dengan efek kecil yang ketika digabungkan menjadi signifikan dan konsisten lintas kelompok populasi.
Poin-Poin Utama
- Genetic factors play larger role in personality than previously thought, per international study.
- Researchers identified over 1,200 genetic variants linked to Big Five personality traits.
- Genetic links extend to health, longevity, education, career, and income levels.
- Environmental factors remain powerful in shaping identity alongside genetics.
- Revived Genomics of Personality Consortium led the study.
- Data collected from 46 research cohorts worldwide.
- Participants provided DNA samples and Big Five questionnaires.
- Big Five traits: openness, conscientiousness, extraversion, agreeableness, neuroticism.
- No single 'personality gene' exists, according to lead author Ted Schwaba of Michigan State University.
- Individual variant effects small; combined effects of thousands of variants significant.
- Genetic patterns consistent across populations, e.g., extraversion variants in Dutch young adults predict same trait in U.S. retirees.
- Relative comparison method ruled out shared environment as sole explanation.
- Conscientiousness variants link to higher daytime activity levels.
- Openness and extraversion variants more common in night owls.
- Neuroticism variants predict time spent in hospitals.
Hak cipta dan publikasi utuh dimiliki oleh Media Indonesia.