Inter-letter spacing, inter-word spacing, and font with dyslexia-friendly features: testing text readability in people with and without dyslexia
Inter-letter spacing, inter-word spacing, and font with dyslexia-friendly features: testing text readability in people with and without dyslexia
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DOI：
10.1007/s11881-020-00194-x
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发表时间：
2020-04-01
影响因子：
2.3
通讯作者：
Bernardis, Paolo
中科院分区：
文献类型：
--
作者：
Galliussi, Jessica;Perondi, Luciano;Bernardis, Paolo
在过去的几年里，一些研究表明诵读困难和低水平视觉处理缺陷之间可能存在联系（例如，过度拥挤）。与此同时，市场上出现了专门设计的“阅读障碍友好”字体。这类字体有两个主要特点：字体的特殊图形特征，旨在避免形状相似的字母之间的混淆，以及更宽的字母间和单词间间距，以限制拥挤。测试“阅读障碍友好”字体在提高阅读准确性和提高阅读速度方面的功效的文献存在争议。我们评估了字体（有与没有阅读障碍友好的图形功能），字母间距（标准与增加）和单词间距（标准与增加）对阅读准确性和速度的影响。两组各64名儿童，有和没有阅读障碍，大声朗读8个等效的文本。收集的数据未能显示字体的任何影响。至于间距，数据表明，阅读速度受到字母间距的增加和字间距的适当增加的影响。
Over the last years, several studies have suggested a possible link between dyslexia and deficits in low-level visual processing (e.g., excessive crowding). At the same time, specially designed "dyslexia-friendly" fonts appeared on the market. This class of fonts presents two main features: the particular graphic characteristics of the letterform designed to avoid confusion between similarly shaped letters, and wider inter-letter and inter-word spacing to limit crowding. The literature testing the efficacy of "dyslexia-friendly" fonts in improving reading accuracy and increasing reading speed is controversial. We evaluated the impact of letterform (with vs. without dyslexia-friendly graphic features), inter-letter spacing (standard vs. increased), and inter-word spacing (standard vs. increased) on reading accuracy and speed. Two groups of 64 children each, with and without dyslexia, read aloud 8 equivalent texts. The data collected failed to show any effect from the letterform. As regards spacing, the data showed that reading speed is impaired by an increase in inter-letter spacing not combined with an adequate increase in inter-word spacing.