Objective

We combined electroencephalography (EEG) and eye-tracking recordings to examine the underlying factors elicited during the serial Rapid-Automatized Naming (RAN) task that may differentiate between children with dyslexia (DYS) and chronological age controls (CAC).

Methods

Thirty children with DYS and 30 CAC (M_age = 9.79 years; age range 7.6 through 12.1 years) performed a set of serial RAN tasks. We extracted fixation-related potentials (FRPs) under phonologically similar (rime-confound) or visually similar (resembling lowercase letters) and dissimilar (non-confounding and discrete uppercase letters, respectively) control tasks.

Results

Results revealed significant differences in FRP amplitudes between DYS and CAC groups under the phonologically similar and phonologically non-confounding conditions. No differences were observed in the case of the visual conditions. Moreover, regression analysis showed that the average amplitude of the extracted components significantly predicted RAN performance.

Conclusion

FRPs capture neural components during the serial RAN task informative of differences between DYS and CAC and establish a relationship between neurocognitive processes during serial RAN and dyslexia.

Significance

We suggest our approach as a methodological model for the concurrent analysis of neurophysiological and eye-gaze data to decipher the role of RAN in reading.

中文翻译：

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命名速度中的注视相关电位：一项针对阅读障碍儿童的脑电图和眼动追踪研究

客观的

我们结合脑电图 (EEG) 和眼动追踪记录来检查在连续快速自动命名 (RAN) 任务中引发的潜在因素，这些因素可能会区分阅读障碍儿童 (DYS) 和实际年龄控制 (CAC)。

方法

30 名患有 DYS 和 30 名 CAC 的儿童（M_年龄 = 9.79 岁；年龄范围为 7.6 到 12.1 岁）执行了一组连续的 RAN 任务。我们在语音相似（rime-confound）或视觉相似（类似于小写字母）和不同（分别为非混淆和离散大写字母）控制任务下提取了固定相关电位（FRP）。

结果

结果显示，在语音相似和语音无混杂的条件下，DYS 和 CAC 组之间 FRP 振幅的显着差异。在视觉条件的情况下没有观察到差异。此外，回归分析表明，提取组件的平均幅度显着预测了 RAN 的性能。

结论

FRP 在串行 RAN 任务期间捕获神经组件，提供 DYS 和 CAC 之间差异的信息，并在串行 RAN 和阅读障碍期间建立神经认知过程之间的关系。

意义

我们建议将我们的方法作为同时分析神经生理学和眼睛注视数据的方法模型，以破译 RAN 在阅读中的作用。