The effect of bi-hemispheric transcranial direct current stimulation on verbal function in Broca's aphasia

IF 1.2 3区心理学 Q2 LINGUISTICS Journal of Neurolinguistics Pub Date : 2022-08-01 DOI:10.1016/j.jneuroling.2022.101087

Saha Yekta , Alia Saberi , Kamran Ezzati , Kambiz Rohampour , Somayeh Ahmadi Gooraji , Samaneh Ghorbani Shirkouhi , Sasan Andalib

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Abstract

Aphasia is one of the most common deficits occurring after stroke that remains, at least in part, even after speech therapy and medication treatment. Non-invasive direct current transcranial stimulation (tDCS) is used to improve brain function by induction of neural plasticity. This study investigated the effect of bi-hemispheric tDCS on verbal function in patients with stroke-induced Broca's aphasia.

Thirty patients with Broca's aphasia due to ischemic stroke, referred to an academic hospital in Guilan Province, Iran, in 2019-20, were studied. Patients were divided into two groups receiving seven sessions of either active or sham tDCS. The tDCS sessions began 10–20 days after stroke onset. The severity of aphasia before and after the intervention and a 3-month follow-up were assessed by the Persian version of the Western Battery-1 test (P-WAB-1). T-test, ANOVA, and Repeated Measurement were used for data analyses.

The mean P-WAB-1 score was significantly higher in the intervention group both early after tDCS (P ≤ 0.0001) and on the 3-months follow-up (P ≤ 0001). Linear regression analysis indicated that tDCS had a positive effect on verbal performance scores independent of age, sex, and lesion volume (Regression coefficient = −33.3).

Bi-hemispheric tDCS effectively improves verbal function in Broca's aphasia in the sub-acute phase of ischemic stroke.

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双脑经颅直流电刺激对布洛卡失语症言语功能的影响

失语是中风后最常见的缺陷之一，即使在语言治疗和药物治疗之后，失语仍然存在，至少部分存在。无创直流电经颅刺激(tDCS)通过诱导神经可塑性来改善脑功能。本研究探讨了双半球tDCS对脑卒中性布洛卡失语症患者言语功能的影响。对2019- 2020年转诊至伊朗桂林某学术医院的30例缺血性脑卒中所致布洛卡失语症患者进行了研究。患者被分为两组，分别接受7次活动或假tDCS。tDCS在中风发作后10-20天开始。采用波斯语版Western Battery-1测试(P-WAB-1)评估干预前后失语的严重程度和3个月的随访。数据分析采用t检验、方差分析和重复测量。干预组在tDCS术后早期(P≤0.0001)和3个月随访时(P≤0001)P- wab -1平均评分均显著高于干预组。线性回归分析表明，tDCS对语言表现得分有积极影响，与年龄、性别和病变体积无关(回归系数= - 33.3)。双脑tDCS可有效改善缺血性脑卒中亚急性期Broca失语症患者的言语功能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Neurolinguistics 医学-神经科学

CiteScore

3.90

自引率

5.00%

发文量

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.