Transcranial photobiomodulation on the left inferior frontal gyrus enhances Mandarin Chinese L1 and L2 complex sentence processing performances

IF 2.1 2区心理学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY Brain and Language Pub Date : 2024-08-27 DOI:10.1016/j.bandl.2024.105458

Mingchuan Yang , Yang Liu , Zhaoqian Yue , Guang Yang , Xu Jiang , Yimin Cai , Yuqi Zhang , Xiujie Yang , Dongwei Li , Luyao Chen

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Abstract

This study investigated the causal enhancing effect of transcranial photobiomodulation (tPBM) over the left inferior frontal gyrus (LIFG) on syntactically complex Mandarin Chinese first language (L1) and second language (L2) sentence processing performances. Two (L1 and L2) groups of participants (thirty per group) were recruited to receive the double-blind, sham-controlled tPBM intervention via LIFG, followed by the sentence processing, the verbal working memory (WM), and the visual WM tasks. Results revealed a consistent pattern for both groups: (a) tPBM enhanced sentence processing performance but not verbal WM for linear processing of unstructured sequences and visual WM performances; (b) Participants with lower sentence processing performances under sham tPBM benefited more from active tPBM. Taken together, the current study substantiated that tPBM enhanced L1 and L2 sentence processing, and would serve as a promising and cost-effective noninvasive brain stimulation (NIBS) tool for future applications on upregulating the human language faculty.

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对左侧额叶下回进行经颅光生物调节可提高汉语普通话 L1 和 L2 复杂句子处理能力

本研究探讨了经颅光生物调控（tPBM）对左额下回（LIFG）句法复杂的汉语第一语言（L1）和第二语言（L2）句子处理能力的因果增强效应。研究人员招募了两组（第一语言和第二语言）参与者（每组三十人），通过 LIFG 接受双盲假对照 tPBM 干预，然后进行句子处理、言语工作记忆（WM）和视觉 WM 任务。结果显示两组的模式一致：（a）tPBM 提高了句子处理能力，但没有提高非结构化序列线性处理的言语工作记忆能力和视觉工作记忆能力；（b）在假tPBM下句子处理能力较低的参与者从积极的tPBM中获益更多。综上所述，本研究证实了 tPBM 可增强 L1 和 L2 句子处理能力，并可作为一种前景广阔且经济有效的非侵入性脑刺激（NIBS）工具，在未来应用于提高人类语言能力方面。

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来源期刊

Brain and Language 医学-神经科学

CiteScore

4.50

自引率

8.00%

发文量

审稿时长

20.5 weeks

期刊介绍： An interdisciplinary journal, Brain and Language publishes articles that elucidate the complex relationships among language, brain, and behavior. The journal covers the large variety of modern techniques in cognitive neuroscience, including functional and structural brain imaging, electrophysiology, cellular and molecular neurobiology, genetics, lesion-based approaches, and computational modeling. All articles must relate to human language and be relevant to the understanding of its neurobiological and neurocognitive bases. Published articles in the journal are expected to have significant theoretical novelty and/or practical implications, and use perspectives and methods from psychology, linguistics, and neuroscience along with brain data and brain measures.