Holmqvist Olander Mona, Wennås Brante Eva, Nyström Marcus
University of Gothenburg, Sweden.
Lund University, Sweden.
Dyslexia. 2017 Feb;23(1):42-65. doi: 10.1002/dys.1545. Epub 2016 Nov 28.
This study analyses the effect of pictures in reading materials on the viewing patterns of dyslexic adults. By analysing viewing patterns using eye-tracking, we captured differences in eye movements between young adults with dyslexia and controls based on the influence of reading skill as a continuous variable of the total sample. Both types of participants were assigned randomly to view either text-only or a text + picture stimuli. The results show that the controls made an early global overview of the material and (when a picture was present) rapid transitions between text and picture. Having text illustrated with a picture decreased scores on questions about the learning material among participants with dyslexia. Controls spent 1.7% and dyslexic participants 1% of their time on the picture. Controls had 24% fewer total fixations; however, 29% more of the control group's fixations than the dyslexic group's fixations were on the picture. We also looked for effects of different types of pictures. Dyslexic subjects exhibited a comparable viewing pattern to controls when scenes were complex, but fewer fixations when scenes were neutral/simple. Individual scan paths are presented as examples of atypical viewing patterns for individuals with dyslexia as compared with controls. © 2016 The Authors. Dyslexia published by John Wiley & Sons Ltd.
本研究分析了阅读材料中的图片对成年阅读障碍者观看模式的影响。通过使用眼动追踪技术分析观看模式，我们基于阅读技能这一总样本的连续变量的影响，捕捉了成年阅读障碍者与对照组在眼动方面的差异。两类参与者均被随机分配观看纯文本或文本+图片刺激材料。结果表明，对照组会对材料进行早期的整体浏览，并且（当有图片时）会在文本和图片之间快速切换。对于阅读障碍者参与者而言，配有图片的文本会降低他们在关于学习材料问题上的得分。对照组在图片上花费的时间占比为1.7%，阅读障碍者参与者为1%。对照组的总注视次数少24%；然而，对照组在图片上的注视次数比阅读障碍组多29%。我们还研究了不同类型图片的影响。当场景复杂时，阅读障碍者呈现出与对照组类似的观看模式，但当场景为中性/简单时，他们的注视次数较少。与对照组相比，个体扫描路径作为阅读障碍者非典型观看模式的示例呈现。© 2016作者。《阅读障碍》由约翰·威利父子有限公司出版。
