單語與雙語年輕成人對熟悉與不熟悉語言的腦波振盪活動

// Oscillatory brain activity in response to familiar and unfamiliar languages in monolingual and bilingual young adults

本研究探討雙語經驗如何影響熟悉與不熟悉語言的語音處理大腦振盪｜腦電圖顯示雙語者在不熟悉語言中有較強的α波抑制，代表更高的注意力控制，且熟悉語言時θ波增強，反映工作記憶提高｜不熟悉語言的β波降低暗示預測機制較不穩定，證明雙語經驗主要透過注意力與記憶調節神經反應，雙語性應視為連續體而非二分法。

// This study examined how bilingual experience affects brain oscillations during spoken language processing in familiar and unfamiliar languages. EEG recordings showed bilinguals had stronger alpha suppression for unfamiliar languages, indicating greater attentional control, and increased theta power linked to home language exposure, reflecting enhanced working memory during familiar language processing. Reduced beta power for unfamiliar languages suggested less stable prediction mechanisms. Overall, bilingual experience modulates neural responses primarily via attention and memory processes, highlighting bilingualism as a continuum rather than a binary trait.

Published 2026年5月29日