句子重点对语言理解中运动系统活动的影响及其时间动态:来自 sEMG 的初步证据

IF 2.7 3区 医学 Q1 BEHAVIORAL SCIENCES
Guangfang Zhou , Xuying Wang , Zhenzhen Xu , Hua Jin
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引用次数: 0

摘要

以往的研究表明,个体经验和实验任务会影响句子理解过程中心理模拟的发生。然而,很少有研究关注句子重点对心理模拟及其时间动态的影响。句子重点指的是句子中信息的层次结构,其中重点信息代表了最突出和最基本的信息。相反,非重点信息则为重点信息提供背景。本研究探讨了句子重点是否会影响语言理解中的运动系统活动,以及句子重点的影响发生在哪个阶段。我们通过表面肌电图(sEMG)测量了参与者在阅读行动重点句、非行动重点句和对照句时手臂肌肉的自发电活动。我们观察到,与非重点句子和对照句子相比,当参与者阅读重点句子时,手指屈肌的自发肌电活动更强。此外,句子类型和时间之间存在交互趋势,阅读动作句子时,在早期(动作短语出现后 1 毫秒至 300 毫秒)和晚期(动作短语出现后 901 毫秒至 1500 毫秒)时间窗口都能观察到自发肌肉电活动。研究结果表明,运动系统在语言理解过程中表现出灵活的参与性,句子重点对运动系统活动的影响可能贯穿词汇-语义检索和句子-意义整合两个阶段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The influence of sentence focus on motor system activity in language comprehension and its temporal dynamics: Preliminary evidence from sEMG

Previous research has shown that individual experiences and experimental tasks can influence the occurrence of mental simulation during sentence comprehension. However, little research has focused on the effect of sentence focus on mental simulation and its temporal dynamics. Sentence focus refers to the hierarchical structure of information within a sentence, where focused information represents the most prominent and essential information. In contrast, nonfocused information provides a background for the focused information. The present study investigated whether sentence focus would affect the activity of the motor system in language comprehension and at which stage the effect of sentence focus occurred. We measured spontaneous arm muscle electrical activity by surface electromyography (sEMG) while participants read action-focused, nonaction-focused, and control sentences. We observed greater spontaneous muscle electrical activity in the flexor common muscle of the fingers when participants read action-focused sentences compared to nonaction-focused and control sentences. Additionally, there was an interactive trend between sentence type and time, spontaneous muscle electrical activity while reading action-focused sentences was observed in both early (1 ms to 300 ms after the presentation of the action phrase) and late time windows (901 ms to 1500 ms after the action phrase). The findings suggest that the motor system exhibits flexible engagement during language comprehension and the impact of sentence focus on motor system activity may be throughout both the lexical-semantic retrieval and sentence-meaning integration stages.

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来源期刊
Biological Psychology
Biological Psychology 医学-行为科学
CiteScore
4.20
自引率
11.50%
发文量
146
审稿时长
3 months
期刊介绍: Biological Psychology publishes original scientific papers on the biological aspects of psychological states and processes. Biological aspects include electrophysiology and biochemical assessments during psychological experiments as well as biologically induced changes in psychological function. Psychological investigations based on biological theories are also of interest. All aspects of psychological functioning, including psychopathology, are germane. The Journal concentrates on work with human subjects, but may consider work with animal subjects if conceptually related to issues in human biological psychology.
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