Electrophysiological resting-state signatures link polygenic scores to general intelligence.

ABSTRACT: Intelligence is associated with important life outcomes. Behavioral, genetic, structural, and functional brain correlates of intelligence have been studied for decades, but questions remain as to how genetics are related to trait expression and what intermediary role brain properties play. This study investigated these mediations in a representative sample of 434 individuals, comprising young and older adults. Polygenic scores (PGS) for intelligence were calculated. Resting-state EEG recordings were analyzed using graph theory quantifying functional connectivity across different frequencies. We tested whether global and local graph metrics like efficiency and clustering mediated the association between PGS and intelligence. PGS significantly predicted variance in intelligence and were rela

SUBMITTER: Engler R 

PROVIDER: S-EPMC12638761 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature