不同词长中文句子阅读知觉广度的年老化:眼动证据

采用移动窗口范式分别探测单字词句、双字词句和混合句子阅读知觉广度的年老化模式。单字词句是完全由单字词组成的句子，双字词句是完全由双字词组成的句子，混合句的所有词由1~4个汉字组成，这些词汇的平均词长为1.5个字。结果发现：（1）老年读者在各种词长句子上的阅读知觉广度范围均是从注视字至其右侧2个汉字；（2）青年读者在各种词长句子上的阅读知觉广度为注视点左侧1个汉字到右侧3个汉字空间。由此可见，年老化促使中文读者的阅读知觉广度变小，变得更加不对称；且句子构成词汇的词长并不调节中文阅读知觉广度的年老化。

The Aging of Perceptual Span in Different Word Length Sentences: Evidences from Eye Movement

The moving window paradigm was used to explore the aging patterns of perceptual span of three types of sentences——1-character-word sentence(consisted entirely by single-character word), 2-character-word sentence(consisted entirely by two-character word) and mixed sentences(the average word length was 1.5 characters). The results were as follows:(1) The perceptual span of older adults in Chinese reading was extended from fixated character to two characters to its right on all kinds of sentences; (2) The younger adults' perceptual span was extended from one character to left and three characters to right in all conditions, which was larger than older adults'. This study revealed that aging would result in Chinese readers' perceptual span being smaller and more asymmetric, and the word length of sentence did not modulate the aging pattern of perceptual span in Chinese.