Eye movements and brain electric potentials during reading
Eye movements and brain electric potentials during reading
复制标题
DOI：
10.1007/s00426-011-0376-x
复制
发表时间：
2012-03-01
影响因子：
2.3
通讯作者：
Sommer, Werner
中科院分区：
文献类型：
--
作者：
Kliegl, Reinhold;Dambacher, Michael;Sommer, Werner
阅读理论和计算模型的发展需要了解处理限制，特别是与单词识别和动眼神经控制相关的时间线。单词识别的时间线通常由在单词的串行视觉呈现（SVP）条件下记录的事件相关电位（ERP）来确定；动眼神经控制的时间线源自自然阅读过程中的眼动（EM）参数。我们描述了两种整合这些方法的策略。一种是在单独的 SVP 和自然阅读实验中针对相同的实验材料（但不同的受试者）收集 ERP 和 EM。另一种策略是在自然阅读同一主题的过程中共同注册 EM 和 ERP。这两种策略都会产生数据，使我们能够确定词汇属性如何影响相邻单词的 ERP（例如，N400 成分）和 EM（例如，注视持续时间）。我们参考当前阅读过程中眼动控制的模型，回顾了最近关于单词频率和可预测性对 EM 和 ERP 测量的影响的研究。结果支持这样的命题：词汇访问分布在多个注视点和相邻单词测量的脑电势上。
The development of theories and computational models of reading requires an understanding of processing constraints, in particular of timelines related to word recognition and oculomotor control. Timelines of word recognition are usually determined with event-related potentials (ERPs) recorded under conditions of serial visual presentation (SVP) of words; timelines of oculomotor control are derived from parameters of eye movements (EMs) during natural reading. We describe two strategies to integrate these approaches. One is to collect ERPs and EMs in separate SVP and natural reading experiments for the same experimental material (but different subjects). The other strategy is to co-register EMs and ERPs during natural reading from the same subjects. Both strategies yield data that allow us to determine how lexical properties influence ERPs (e.g., the N400 component) and EMs (e.g., fixation durations) across neighboring words. We review our recent research on the effects of frequency and predictability of words on both EM and ERP measures with reference to current models of eye-movement control during reading. Results are in support of the proposition that lexical access is distributed across several fixations and across brain-electric potentials measured on neighboring words.