Liang Xiaoyu, Ma Yuyu, Wang Ruonan, Wu Huanqi, Liu Changzeng, Cao Fuzhi, An Nan, Xiang Min, Zhai Yueyang, Ning Xiaolin
IEEE Trans Neural Syst Rehabil Eng. 2025;33:1473-1485. doi: 10.1109/TNSRE.2025.3561356. Epub 2025 Apr 23.
The processing of semantic information is pivotal in language cognition. However, there is a scarcity of research exploring the semantic-related patterns associated with aperiodic and transient periodic brain activities. In this study, recently developed algorithms were employed to parameterize the time-frequency characteristics of neural activities captured with optically pumped magnetometers-based wearable Magnetoencephalography from participants engaged in a Chinese semantic-based task. This study elucidated the neural mechanisms during semantic processing, in relation to transient oscillations and aperiodic activity. Additionally, the results demonstrated that these parameterized features could serve as indicators for decoding semantics. These findings may offer novel contribution to analyzing the mechanism of semantic perception, which will be potential to rehabilitation of language disorders with OPM-MEG.
语义信息的处理在语言认知中至关重要。然而，探索与非周期性和瞬态周期性大脑活动相关的语义关联模式的研究却很匮乏。在本研究中，采用了最近开发的算法来参数化参与者在基于中文语义任务中使用基于光泵磁力仪的可穿戴式脑磁图所捕获的神经活动的时频特征。本研究阐明了语义处理过程中与瞬态振荡和非周期性活动相关的神经机制。此外，结果表明这些参数化特征可作为解码语义的指标。这些发现可能为分析语义感知机制提供新的贡献，这对于使用光泵磁力仪脑磁图进行语言障碍康复具有潜在意义。
