生理反应和认知行为:测量心率变异性指数语言知识

IF 1.2 3区 心理学 Q2 LINGUISTICS
Dagmar Divjak , Hui Sun , Petar Milin
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引用次数: 0

摘要

在过去的几十年里,重点一直放在开发方法上,这些方法可以利用认知中不能直接观察到的方面。这包括语言知识和技能,这些知识和技能在很大程度上是在无意识的情况下发展起来的,因此可能很难或不可能表达出来。基于语言认知与神经系统之间的关系,我们研究了心率变异性(HRV)是否可以用于评估内隐语言知识,心率变异性是一种衡量自主神经系统活动的心血管指标。我们测试了HRV的潜力,以检测个人是否拥有语法知识,并探索心血管反应的敏感性。41位健康的说英语的英国成年人听了40个英语演讲样本,其中一半包含语法错误。Thought Technology的5通道ProComp 5编码器通过连接在非惯用手中指上的BVP-Flex/Pro传感器以每秒2048次采样的速度跟踪心率。广义加性混合效应模型证实了心血管对语法错误的反应:在对包含错误的刺激作出反应时,根据NN50指数,HRV在统计上显著降低。心血管反应反映了语言错误的程度,NN50随着错误数量的增加而线性下降,直到一定水平,之后HRV保持不变。这一观察为生理学和认知之间错综复杂的关系带来了一个新的维度。能够使用一种高度便携和非侵入性的语言刺激技术,也为在自然环境和真实交际情境中评估不同人群的语言知识创造了令人兴奋的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Physiological responses and cognitive behaviours: Measures of heart rate variability index language knowledge

Over the past decades, focus has been on developing methods that allow tapping into aspects of cognition that are not directly observable. This includes linguistic knowledge and skills which develop largely without awareness and may therefore be difficult or impossible to articulate. Building on the relation between language cognition and the nervous system, we examine whether Heart Rate Variability (HRV), a cardiovascular measure that indexes Autonomic Nervous System activity, can be used to assess implicit language knowledge. We test the potential of HRV to detect whether individuals possess grammatical knowledge and explore how sensitive the cardiovascular response is.

41 healthy, British English-speaking adults listened to 40 English speech samples, half of which contained grammatical errors. Thought Technology's 5-channel ProComp 5 encoder tracked heart rate via a BVP-Flex/Pro sensor attached to the middle finger of the non-dominant hand, at a rate of 2048 samples per second. A Generalised Additive Mixed Effects Model confirmed a cardiovascular response to grammatical violations: there is a statistically significant reduction in HRV as indexed by NN50 in response to stimuli that contain errors. The cardiovascular response reflects the extent of the linguistic violations, and NN50 decreases linearly with an increase in the number of errors, up to a certain level, after which HRV remains constant.

This observation brings into focus a new dimension of the intricate relationship between physiology and cognition. Being able to use a highly portable and non-intrusive technique with language stimuli also creates exciting possibilities for assessing the language knowledge of individuals from a range of populations in their natural environment and in authentic communicative situations.

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来源期刊
Journal of Neurolinguistics
Journal of Neurolinguistics 医学-神经科学
CiteScore
3.90
自引率
5.00%
发文量
49
审稿时长
17.2 weeks
期刊介绍: The Journal of Neurolinguistics is an international forum for the integration of the neurosciences and language sciences. JNL provides for rapid publication of novel, peer-reviewed research into the interaction between language, communication and brain processes. The focus is on rigorous studies of an empirical or theoretical nature and which make an original contribution to our knowledge about the involvement of the nervous system in communication and its breakdowns. Contributions from neurology, communication disorders, linguistics, neuropsychology and cognitive science in general are welcome. Published articles will typically address issues relating some aspect of language or speech function to its neurological substrates with clear theoretical import. Interdisciplinary work on any aspect of the biological foundations of language and its disorders resulting from brain damage is encouraged. Studies of normal subjects, with clear reference to brain functions, are appropriate. Group-studies on well defined samples and case studies with well documented lesion or nervous system dysfunction are acceptable. The journal is open to empirical reports and review articles. Special issues on aspects of the relation between language and the structure and function of the nervous system are also welcome.
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