The effect of word frequency and parafoveal preview on saccade length during the reading of Chinese.
The effect of word frequency and parafoveal preview on saccade length during the reading of Chinese.
复制标题
汉语阅读过程中词频和中心凹预视对扫视长度的影响
DOI：
10.1037/xhp0000190
复制
发表时间：
2016-07
期刊：
影响因子：
--
通讯作者：
Li X
中科院分区：
文献类型：
--
作者：
Liu Y;Reichle ED;Li X
目前关于中国读者如何选择他们的扫视目标有两种理论解释：(1)通过将他们的眼睛移动到特定的扫视目标(即缺省目标假设)；(2)通过调整他们的扫视长度来适应词汇加工(即动态调整假说)。在这篇文章中，我们首先报告了一项使用凝视相关边界范式的眼动实验的结果。本实验表明，目标词的频率及其预览有效性都调节了进入和退出目标词的扫视的长度，当高频词有预览可用时，进入和离开目标词的扫视的长度更长。然后，我们报告了两个使用计算模型的模拟结果，这些模型实例化了违约目标假说和动态调整假说的核心理论假设。这些模拟的比较表明，动态调整假设使用更少的自由参数为我们的实验数据提供了更好的定量解释。我们最后讨论了字母语言阅读过程中动态眼跳调节的证据，以及为什么在阅读字母语言和非字母语言过程中，这样的启发式可能是完全解释眼动控制所必需的。
There are currently two theoretical accounts of how readers of Chinese select their saccade targets: (1) by moving their eyes to specific saccade targets (i.e., the default-targeting hypothesis); and (2) by adjusting their saccade lengths to accommodate lexical processing (i.e., the dynamic-adjustment hypothesis). In this article, we first report the results of an eye-movement experiment using a gaze-contingent boundary paradigm. This experiment demonstrates that both target-word frequency and its preview validity modulate the lengths of the saccades entering and exiting the target words, with longer saccades to/from high-frequency words when their preview was available. We then report the results of two simulations using computational models that instantiate the core theoretical assumptions of the default-targeting and dynamic-adjustment hypotheses. Comparisons of these simulations indicate that the dynamic-adjustment hypothesis provides a better quantitative account of the data from our experiment using fewer free parameters. We conclude by discussing evidence for dynamic saccade adjustment during the reading of alphabetic languages, and why such a heuristic may be necessary to fully explain eye-movement control during the reading of both alphabetic and non-alphabetic languages.