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首页> 美国卫生研究院文献>PLoS Clinical Trials >Testing for the Dual-Route Cascade Reading Model in the Brain: An fMRI Effective Connectivity Account of an Efficient Reading Style
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Testing for the Dual-Route Cascade Reading Model in the Brain: An fMRI Effective Connectivity Account of an Efficient Reading Style

机译：在大脑中进行双路级联阅读模型的测试：一种有效的阅读风格的fMRI有效连通性帐户

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Neuropsychological data about the forms of acquired reading impairment provide a strong basis for the theoretical framework of the dual-route cascade (DRC) model which is predictive of reading performance. However, lesions are often extensive and heterogeneous, thus making it difficult to establish precise functional anatomical correlates. Here, we provide a connective neural account in the aim of accommodating the main principles of the DRC framework and to make predictions on reading skill. We located prominent reading areas using fMRI and applied structural equation modeling to pinpoint distinct neural pathways. Functionality of regions together with neural network dissociations between words and pseudowords corroborate the existing neuroanatomical view on the DRC and provide a novel outlook on the sub-regions involved. In a similar vein, congruent (or incongruent) reliance of pathways, that is reliance on the word (or pseudoword) pathway during word reading and on the pseudoword (or word) pathway during pseudoword reading predicted good (or poor) reading performance as assessed by out-of-magnet reading tests. Finally, inter-individual analysis unraveled an efficient reading style mirroring pathway reliance as a function of the fingerprint of the stimulus to be read, suggesting an optimal pattern of cerebral information trafficking which leads to high reading performance.
机译：有关获得性阅读障碍形式的神经心理学数据为双路径级联（DRC）模型的理论框架提供了坚实的基础，该模型可预测阅读性能。但是，病变通常是广泛而异质的，因此难以建立精确的功能解剖相关性。在这里，我们提供一个连接神经帐户，以适应DRC框架的主要原理并做出有关阅读技巧的预测。我们使用功能磁共振成像（FMRI）定位了突出的阅读区域，并应用了结构方程模型来确定不同的神经通路。区域的功能以及单词和伪单词之间的神经网络分离，证实了DRC上现有的神经解剖学观点，并为涉及的子区域提供了新颖的前景。以类似的方式，一致（或不一致）的路径依赖，即在单词阅读过程中对单词（或伪单词）路径的依赖以及在伪单词阅读过程中对伪单词（或单词）路径的依赖，预测了良好（或较差）的阅读性能通过磁铁外阅读测试。最终，个体间分析揭示了一种有效的阅读方式，其镜像路径依赖于待阅读刺激指纹的功能，这表明导致高阅读性能的大脑信息运输的最佳模式。

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