Musical and linguistic syntactic processing in agrammatic aphasia: An ERP study

IF 1.2 3区 心理学 Q2 LINGUISTICS
Brianne Chiappetta , Aniruddh D. Patel , Cynthia K. Thompson
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引用次数: 6

Abstract

Language and music rely on complex sequences organized according to syntactic principles that are implicitly understood by enculturated listeners. Across both domains, syntactic processing involves predicting and integrating incoming elements into higher-order structures. According to the Shared Syntactic Integration Resource Hypothesis (SSIRH; Patel, 2003), musical and linguistic syntactic processing rely on shared resources for integrating incoming elements (e.g., chords, words) into unfolding sequences. One prediction of the SSIRH is that people with agrammatic aphasia (whose deficits are due to syntactic integration problems) should present with deficits processing musical syntax. We report the first neural study to test this prediction: event-related potentials (ERPs) were measured in response to musical and linguistic syntactic violations in a group of people with agrammatic aphasia (n = 7) compared to a group of healthy controls (n = 14) using an acceptability judgement task. The groups were matched with respect to age, education, and extent of musical training. Violations were based on morpho-syntactic relations in sentences and harmonic relations in chord sequences. Both groups presented with a significant P600 response to syntactic violations across both domains. The aphasic participants presented with a reduced-amplitude posterior P600 compared to the healthy controls in response to linguistic, but not musical, violations. Participants with aphasia did however present with larger frontal positivities in response to violations in both domains. Intriguingly, extent of musical training was associated with larger posterior P600 responses to syntactic violations of language and music in both groups. Overall, these findings are not consistent with the predictions of the SSIRH, and instead suggest that linguistic, but not musical, syntactic processing may be selectively impaired in stroke-induced agrammatic aphasia. However, the findings also suggest a relationship between musical training and linguistic syntactic processing, which may have clinical implications for people with aphasia, and motivates more research on the relationship between these two domains.

Abstract Image

语法失语症的音乐和语言句法加工:ERP研究
语言和音乐依赖于根据句法原则组织的复杂序列,而这些原则被文化适应的听众所隐含地理解。在这两个领域中,句法处理都涉及预测并将传入元素集成到高阶结构中。基于共享句法整合资源假说(SSIRH)Patel, 2003),音乐和语言的句法处理依赖于共享资源,将传入的元素(如和弦、单词)整合成展开的序列。SSIRH的一个预测是,患有语法失语症的人(其缺陷是由于句法整合问题)应该在处理音乐语法方面存在缺陷。我们报告了首个测试这一预测的神经研究:使用可接受性判断任务,测量了一组语法失语症患者(n = 7)和一组健康对照组(n = 14)对音乐和语言语法违反的反应的事件相关电位(ERPs)。这些小组根据年龄、教育程度和音乐训练程度进行匹配。违例是基于句子中的词法关系和和弦序列中的和声关系。两组在两个领域对语法违规都表现出显著的P600反应。与健康对照组相比,失语症参与者在语言违反而非音乐违反时,后路P600的振幅减小。然而,失语症的参与者在这两个领域的侵犯反应中确实表现出更大的额叶正性。有趣的是,在两组中,音乐训练的程度与更大的后P600对语言和音乐语法违反的反应有关。总的来说,这些发现与SSIRH的预测并不一致,而是表明语言,而不是音乐,句法处理可能在中风引起的语法失语症中选择性受损。然而,研究结果也表明了音乐训练和语言句法处理之间的关系,这可能对失语症患者有临床意义,并激发了对这两个领域之间关系的更多研究。
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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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