句子学习过程中的眼动特征

为了探讨重复学习对于汉语句子理解的作用,采用眼动仪记录10名研究生被试连续5次阅读20个句子时的眼动模式.研究结果表明：①随着阅读次数的增加,句子阅读时间依次缩短;注视点数目和回视次数逐渐减少;注视点的平均持续时间波动较小;平均眼跳距离逐渐加长;瞳孔尺寸逐渐变大.②其中瞳孔尺寸的变化模式揭示了句子学习过程中可能存在作业难度和认知负荷之间的分离--随着阅读次数的增加,作业难度降低,而认知负荷逐渐升高.③多种指标表明句子学习过程中知觉广度随阅读次数增加而加大.

The Analysis of Eye Movement Features in Sentence Learning Process

In order to explore the repetition effect of Chinese sentences to the on - line comprehending process, eye movements were recorded in 10 postgraduates while reading 20 sentences. Each sentence was repeated for 5 times. It was found that with the repetition, reading of each sentence became faster; fixation counts and the number of regression decreased; the saccade amplitude increased; the fixation duration kept unchanged; the pupil size enlarged. These findings suggest that there might be dissociation between the degree of difficulty to comprehend a sentence and the amount of mental load in the process of sentence learning, and the perceptual span is increased with learning.