Neural semantic effects of tone accents

IF 1.6 4区 医学 Q4 NEUROSCIENCES Neuroreport Pub Date : 2024-07-09 DOI:10.1097/wnr.0000000000002077
Jinhee Kwon, Mikael Roll
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Abstract

This study investigated whether the brain utilizes morphologically induced tones for semantic processing during online speech perception. An auditory comprehension task was conducted while measuring event-related potentials (ERPs). The study tested whether a discrepancy between contextual expectations and the tonal realizations of the target word would yield an N400 effect, indicative of semantic processing difficulty. An N400 effect was observed, reflecting integration difficulty due to semantic anomalies caused by incongruent tones. Additionally, the ERPs in the congruent conditions were modulated by the cohort entropy of the target word indicating lexical competition. The late negativity observed in this study encompasses both the N400 and preactivation negativity. This overlap underscores the brain’s potential for rapidly connecting form and meaning from different sources within the word, relying on statistically based prediction in semantic processing.
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语调重音的神经语义效应
本研究探讨了在在线语音感知过程中,大脑是否会利用形态诱导音来进行语义处理。在测量事件相关电位(ERPs)的同时进行了听觉理解任务。研究测试了目标词的上下文预期和音调实现之间的差异是否会产生 N400 效应,这表明语义处理存在困难。结果观察到了 N400 效应,这反映了由于不一致的音调造成语义异常而导致的整合困难。此外,同调条件下的ERP受目标词的同调熵调节,这表明存在词汇竞争。本研究中观察到的晚期负性包括 N400 和激活前负性。这种重叠强调了大脑在语义处理过程中依靠基于统计的预测,快速连接词内不同来源的形式和意义的潜力。
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来源期刊
Neuroreport
Neuroreport 医学-神经科学
CiteScore
3.20
自引率
0.00%
发文量
150
审稿时长
1 months
期刊介绍: NeuroReport is a channel for rapid communication of new findings in neuroscience. It is a forum for the publication of short but complete reports of important studies that require very fast publication. Papers are accepted on the basis of the novelty of their finding, on their significance for neuroscience and on a clear need for rapid publication. Preliminary communications are not suitable for the Journal. Submitted articles undergo a preliminary review by the editor. Some articles may be returned to authors without further consideration. Those being considered for publication will undergo further assessment and peer-review by the editors and those invited to do so from a reviewer pool. The core interest of the Journal is on studies that cast light on how the brain (and the whole of the nervous system) works. We aim to give authors a decision on their submission within 2-5 weeks, and all accepted articles appear in the next issue to press.
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