Zhou Wei, Wang Aiping, Yan Ming
Beijing Key Laboratory of Learning and Cognition, School of Psychology, Capital Normal University, Beijing, China.
School of Psychology, Beijing Normal University, Beijing, China.
Vision Res. 2021 May;182:20-26. doi: 10.1016/j.visres.2021.01.005. Epub 2021 Feb 9.
In the present study, we explored the perceptual span of skilled Uighur readers during their natural reading of sentences. The Uighur script is based on Arabic letters and it runs horizontally from right to left, offering a test to understand the effect of text direction. We utilized the gaze contingent moving window paradigm, in which legible text was provided only within a window that moved in synchrony with readers' eyes while all other letters were masked. The size of the window was manipulated systematically to determine the smallest size that allowed readers to show normal reading behaviors. Comparisons of window conditions with the baseline condition showed that the Uighur readers reached asymptotic performance in reading speed and gaze duration when windows revealed at least five letters to the right and twelve letters to the left of the currently fixated one. The present study is the first to document the size of the perceptual span in a horizontally leftwards running script. Cross-script comparisons with prior findings suggest that the size of the perceptual span for a certain writing system is likely influenced by its reading direction and visual complexity.
在本研究中，我们探究了熟练的维吾尔族读者在自然阅读句子时的知觉广度。维吾尔语文字基于阿拉伯字母，从右向左横向书写，这为理解文本方向的影响提供了一个测试。我们采用了注视点跟随移动窗口范式，即只有在与读者眼睛同步移动的窗口内才提供清晰可读的文本，而所有其他字母都被遮蔽。系统地操纵窗口大小以确定能使读者表现出正常阅读行为的最小窗口大小。将窗口条件与基线条件进行比较表明，当窗口在当前注视字母的右侧显示至少五个字母且在左侧显示十二个字母时，维吾尔族读者在阅读速度和注视持续时间方面达到了渐近表现。本研究首次记录了从左向右横向书写文字的知觉广度大小。与先前研究结果的跨文字比较表明，特定书写系统的知觉广度大小可能受其阅读方向和视觉复杂性的影响。
