Effects of Word Width and Word Length on Optimal Character Size for Reading of Horizontally Scrolling Japanese Words.
Effects of Word Width and Word Length on Optimal Character Size for Reading of Horizontally Scrolling Japanese Words.
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DOI：
10.3389/fpsyg.2016.00127
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发表时间：
2016
影响因子：
3.8
通讯作者：
Mori S
中科院分区：
文献类型：
--
作者：
Teramoto W;Nakazaki T;Sekiyama K;Mori S
本研究以阅读速度为指标，考察了字宽和字长是否影响水平滚动日语单词阅读的最佳字符大小。在实验1中，三个日语单词，每个单词由四个平假名字符组成，顺序滚动在显示屏上从右到左。参与者都是以日语为母语的人，他们被要求尽可能准确地大声朗读这些单词，而不管它们在序列中的顺序如何。为了定量测量他们的阅读表现，我们使用快速串行视觉呈现范式，其中滚动速率增加，直到参与者开始犯错误。因此，对于每个字符大小（0.3°、0.6°、1.0°和3.0°）和滚动窗口大小（5或10个字符空间），计算了参与者的表现超过88.9%正确率的最高滚动率。结果表明，无论滚动窗口大小如何，阅读性能在0.6°至1.0°范围内最高。实验2研究了实验1中观察到的最佳字符大小是否适用于任何词宽和词长（即，一个单词中的字符数）。结果表明，长词的阅读速度比短词慢，3.6°的词宽是测试的词长（三，四，六个字符的单词）中的最佳。考虑到在本研究中，字符大小取决于词宽和词长，这意味着在滚动日语单词时，最佳字符大小可以通过词宽和词长来改变。
The present study investigated, whether word width and length affect the optimal character size for reading of horizontally scrolling Japanese words, using reading speed as a measure. In Experiment 1, three Japanese words, each consisting of four Hiragana characters, sequentially scrolled on a display screen from right to left. Participants, all Japanese native speakers, were instructed to read the words aloud as accurately as possible, irrespective of their order within the sequence. To quantitatively measure their reading performance, we used rapid serial visual presentation paradigm, where the scrolling rate was increased until the participants began to make mistakes. Thus, the highest scrolling rate at which the participants’ performance exceeded 88.9% correct rate was calculated for each character size (0.3°, 0.6°, 1.0°, and 3.0°) and scroll window size (5 or 10 character spaces). Results showed that the reading performance was highest in the range of 0.6° to 1.0°, irrespective of the scroll window size. Experiment 2 investigated whether the optimal character size observed in Experiment 1 was applicable for any word width and word length (i.e., the number of characters in a word). Results showed that reading speeds were slower for longer than shorter words and the word width of 3.6° was optimal among the word lengths tested (three, four, and six character words). Considering that character size varied depending on word width and word length in the present study, this means that the optimal character size can be changed by word width and word length in scrolling Japanese words.