A N400 event-related potential elicitation paradigm for Canadian French speakers*

IF 0.6 Q3 LINGUISTICS

Mental Lexicon Pub Date : 2022-03-25 DOI:10.1075/ml.20032.aze

N. Azevedo, Arielle Crestol, Kathleen Berkun, Alexandra Papathanasopoulos, Leen Yamani, Alexander Rokos, E. Kehayia, S. Blain-Moraes

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引用次数: 0

Abstract

The N400 event-related brain potential (ERP) can be used to evaluate language comprehension, and may be a particularly powerful tool for the assessment of individuals who are behaviourally unresponsive. This study presents a set of semantic violation sentences developed in Canadian French and characterizes their ability to elicit an N400 effect in healthy adults. A novel set of 100 French sentences were created and normed through two surveys that assessed sentence cloze probability (n = 98) and semantic plausibility (n = 99). The best 80 sentences (40 congruent; 40 incongruent) were selected for the final stimulus set and tested for their ability to elicit N400 effects in 33 French-speaking individuals. The final stimulus set successfully generated an N400 effect in the grand-average across all individuals, and in the grand-average within age groups (young, middle-age, and older adults). On a single-subject level, the final stimulus set elicited N400 effects in 76% of the participants. The feasibility of using this stimulus set to assess semantic processing in behaviourally unresponsive individuals was demonstrated in a case example of a French individual in a disorder of consciousness. These sentences enable the inclusion of Canadian French speakers in this simple assessment of language comprehension abilities.

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加拿大法语使用者N400事件相关潜在启发范式*

N400事件相关脑电位（ERP）可用于评估语言理解，并且可能是评估行为无反应个体的一个特别强大的工具。本研究提出了一组用加拿大法语开发的语义侵犯句，并描述了它们在健康成年人中引发N400效应的能力。通过两项评估句子完形填空概率的调查（n = 98）和语义合理性（n = 99）。选择最佳的80个句子（40个一致；40个不一致）作为最终刺激集，并在33个法语个体中测试其引发N400效应的能力。最终的刺激集成功地在所有个体的总平均数和年龄组（年轻人、中年人和老年人）的总平均值中产生了N400的效果。在单个受试者的水平上，最终的刺激集在76%的参与者中引发了N400的效果。使用该刺激集来评估行为无反应个体的语义处理的可行性在一个意识障碍的法国个体的案例中得到了证明。这些句子使讲加拿大法语的人能够参与对语言理解能力的简单评估。

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来源期刊

Mental Lexicon LINGUISTICS-

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： The Mental Lexicon is an interdisciplinary journal that provides an international forum for research that bears on the issues of the representation and processing of words in the mind and brain. We encourage both the submission of original research and reviews of significant new developments in the understanding of the mental lexicon. The journal publishes work that includes, but is not limited to the following: Models of the representation of words in the mind Computational models of lexical access and production Experimental investigations of lexical processing Neurolinguistic studies of lexical impairment. Functional neuroimaging and lexical representation in the brain Lexical development across the lifespan Lexical processing in second language acquisition The bilingual mental lexicon Lexical and morphological structure across languages Formal models of lexical structure Corpus research on the lexicon New experimental paradigms and statistical techniques for mental lexicon research.