MEG bilinguals

generating the phonological word, and finally retrieving syllabic gestural scores and ‎articulation. To study the mechanisms of word retrieval in lemma selection phase, we ‎compared the three groups of monolingual, semi-bilingual and bilingual learners with ‎respect to their topography and strength of Functional Connectivity (FC) values of the most ‎highlighted pair of activated nodes in the time range of 0-150 ms in different frequency ‎bands (delta, theta, alpha, beta, and. gamma) upon application of the stimuli. We have seen ‎no significant difference between difference frequency bands (p > 0.05) at the most ‎highlighted FC pairs. However, we observed higher gamma values signifying the semantic ‎activation of the word. We could not find any significant difference between the groups in ‎terms of FC values at designated pairs of nodes signifying that different amount of exposure ‎could not affect electrophysiological patterns in the preliminary step of word production.‎

本研究旨在生成语音学词素，最终检索音节手势得分及发音。为探究词检索机制在词素选择阶段的运作原理，我们对比了单语、半双语及双语学习者在受到刺激后0-150毫秒时间范围内，针对不同频段（delta、theta、alpha、beta及gamma）中最显著激活节点对的拓扑结构及功能连通性（FC）值。研究发现，在所有频段中，最显著的功能连通性对之间并无显著差异（p>0.05）。然而，我们观察到gamma值较高，表明了词语的语义激活。在指定节点对的功能连通性值方面，各学习组之间未发现显著差异，这表明不同暴露量对词语生产的初步阶段中的电生理模式并无显著影响。