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首页> 外文期刊>Journal of Experimental Psychology. General >Coregistration of eye movements and EEG in natural reading: Analyses and review
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Coregistration of eye movements and EEG in natural reading: Analyses and review

机译：自然阅读中眼动和脑电图的共配：分析和审查

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摘要

Brain-electric correlates of reading have traditionally been studied with word-by-word presentation, a condition that eliminates important aspects of the normal reading process and precludes direct comparisons between neural activity and oculomotor behavior. In the present study, we investigated effects of word predictability on eye movements (EM) and fixation-related brain potentials (FRPs) during natural sentence reading. Electroencephalogram (EEG) and EM (via video-based eye tracking) were recorded simultaneously while subjects read heterogeneous German sentences, moving their eyes freely over the text. FRPs were time-locked to first-pass reading fixations and analyzed according to the cloze probability of the currently fixated word. We replicated robust effects of word predictability on EMs and the N400 component in FRPs. The data were then used to model the relation among fixation duration, gaze duration, and N400 amplitude, and to trace the time course of EEG effects relative to effects in EM behavior. In an extended Methodological Discussion section, we review 4 technical and data-analytical problems that need to be addressed when FRPs are recorded in free-viewing situations (such as reading, visual search, or scene perception) and propose solutions. Results suggest that EEG recordings during normal vision are feasible and useful to consolidate findings from EEG and eye-tracking studies.
机译：传统上，阅读的脑电相关性是通过逐字呈现来研究的，这种情况消除了正常阅读过程的重要方面，并且排除了神经活动与动眼行为之间的直接比较。在本研究中，我们调查了自然句子阅读过程中单词可预测性对眼动（EM）和与注视有关的脑电势（FRP）的影响。同时记录了脑电图（EEG）和EM（通过基于视频的眼动追踪），而受试者阅读了异类的德语句子，使他们的眼睛在文本上自由移动。将FRP锁定在首次通过阅读注视的时间，并根据当前注视的单词的完蛋率进行分析。我们复制了单词可预测性对EM和FRP中N400组件的强大影响。然后，将数据用于对注视持续时间，注视持续时间和N400振幅之间的关系进行建模，并追踪相对于EM行为影响的EEG影响的时程。在扩展的“方法论讨论”部分中，我们回顾了在自由观看情况（例如阅读，视觉搜索或场景感知）下记录FRP时需要解决的4个技术和数据分析问题，并提出了解决方案。结果表明，正常视力期间的脑电图记录对于合并脑电图和眼动追踪研究的结果是可行和有用的。

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