經顱磁刺激干擾右下額回在雙語語言控制中的抑制作用

// Transcranial magnetic stimulation disrupts the inhibitory role of the right inferior frontal gyrus in bilingual language control

本研究結合經顱磁刺激（TMS）與功能性磁共振影像（fMRI），探討右下額回（RIFG）在雙語切換中的角色｜持續θ波刺激（cTBS）降低右下額回大腦活化的切換成本，顯示其干擾會影響語言控制機制｜研究首次提供RIFG與雙語語言控制具因果關係的神經證據，儘管行為表現未見變化。

// This study investigated the role of the right inferior frontal gyrus (RIFG) in bilingual language switching using combined TMS and fMRI. Continuous theta-burst stimulation (cTBS) to the RIFG reduced asymmetric switching costs in brain activation, unlike intermittent stimulation or sham. These neural changes suggest RIFG disruption affects control mechanisms, though no behavioral changes were observed. This work provides novel neural evidence for the RIFG's causal involvement in bilingual language control.

Published 2026年8月6日