在紧急情况下的语言处理招募语言和默认模式网络
Junjie Wu1, Guang Yang2, Zhisai Liu3
1Key Research Base of Humanities and Social Sciences of the Ministry of Education, Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, 300387, China; Faculty of Psychology, Tianjin Normal University, Tianjin, 300387, China; Department of Linguistics, Faculty of Medicine, Health and Human Sciences, Macquarie University, 2109, Sydney, Australia.
紧急语言处理涉及语言网络 (LN) 和默认模式网络 (DMN). 左中额头 (MFG) 中的大脑活动与压力和高紧急场景中的表现相关.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 紧急医疗 紧急医疗
背景情况:
- 有效的语言处理对于紧急情况的专业人士来说至关重要.
- 以前的研究集中在沉默或非紧急噪音中的语言处理.
- 在紧急情况下语言处理的神经机制,特别是语言网络 (LN) 和默认模式网络 (DMN) 的作用,仍然不清楚.
研究的目的:
- 在模拟的高紧急和低紧急场景中调查语言处理背后的神经机制.
- 在紧急语言任务中检查语言网络 (LN) 和默认模式网络 (DMN) 的参与.
- 探索大脑活动,压力水平和在紧急情况下的语言表现之间的相关性.
主要方法:
- 利用功能近红外光谱 (fNIRS) 来测量大脑活动.
- 评估了60名参与者在模拟紧急情况下执行语言处理任务.
- 在休息状态,低紧急和高紧急场景之间比较大脑激活模式.
主要成果:
- 阅读任务显示DMN区域 (双边SFG/MFG) 的激活减少,LN区域 (Broca区域,左叶,左IPL) 的激活增加.
- 左中额头 (MFG) 的活动增加与参与者报告的压力水平有积极的相关性.
- 语言处理性能与左侧MFG激活有正相关,特别是在高紧急组.
结论:
- 在紧急情况下的语言处理涉及语言网络 (LN) 和默认模式网络 (DMN).
- 左中额头 (MFG) 在压力和紧急情况下的语言处理中扮演着重要的角色.
- 这项研究增强了对语言处理在复杂的现实世界紧急情况中的神经基础的理解.
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