Kang Mi-Jeong, Kim Yeseul, Shin Ji-Young, Kim Chai-Youn
Department of Psychology, Korea University Seoul, Korea.
Department of Korean Language and Literature, Korea University Seoul, Korea.
Front Psychol. 2017 Mar 13;8:337. doi: 10.3389/fpsyg.2017.00337. eCollection 2017.
Individuals with grapheme-color synesthesia experience idiosyncratic colors when viewing achromatic letters or digits. Despite large individual differences in grapheme-color association, synesthetes tend to associate graphemes sharing a perceptual feature with similar synesthetic colors. Sound has been suggested as one such feature. In the present study, we investigated whether graphemes of which representative phonemes have similar phonetic features tend to be associated with analogous synesthetic colors. We tested five Korean multilingual synesthetes on a color-matching task using graphemes from Korean, English, and Japanese orthography. We then compared the similarity of synesthetic colors induced by those characters sharing a phonetic feature. Results showed that graphemes associated with the same phonetic feature tend to induce synesthetic color in both within- and cross-script analyses. Moreover, this tendency was consistent for graphemes that are not transliterable into each other as well as graphemes that are. These results suggest that it is the perceptual-i.e., phonetic-properties associated with graphemes, not just conceptual associations such as transliteration, that determine synesthetic color.
患有字形 - 颜色联觉的个体在看到无彩色字母或数字时会体验到独特的颜色。尽管在字形 - 颜色关联方面存在很大的个体差异，但联觉者倾向于将具有相同感知特征的字形与相似的联觉颜色联系起来。声音就是这样一种特征。在本研究中，我们调查了其代表音素具有相似语音特征的字形是否倾向于与类似的联觉颜色相关联。我们使用来自韩语、英语和日语拼写的字形，对五名韩国多语言联觉者进行了颜色匹配任务测试。然后，我们比较了由具有相同语音特征的那些字符所引发的联觉颜色的相似性。结果表明，在同一文字系统内和跨文字系统分析中，与相同语音特征相关联的字形往往会引发联觉颜色。此外，这种趋势对于那些不可相互转写的字形以及可相互转写的字形都是一致的。这些结果表明，决定联觉颜色的是与字形相关的感知属性，即语音属性，而不仅仅是诸如转写之类的概念关联。
