Cognitive Psychological study on synesthetic perception as information integration

字素-颜色联觉研究揭示了字素-颜色联觉的一定规律。首先，对日文字素的联觉颜色决定因素进行了研究。结果显示，普通是平假名角色联觉颜色的最强预测因子，其次是声音和视觉形状。提出了一个考虑字素学习发展过程的新模型。该模型提供了通觉决定过程的全面解释，包括不同书写系统之间的差异。第二，比较非联觉者字素-颜色关联的规律。他们倾向于将更频繁的字素与更独特的颜色联系起来，这与联觉者一致。高联觉组在非联觉组中产生了更广泛的关联。这一发现表明，它们的联觉特征更多地依赖于一对一的规律，这导致它们随着时间的推移具有更高的一致性。

Grapheme-color synesthesia research has revealed certain regularities in grapheme-color associations. First, the determinants of synesthetic color were investigated for Japanese graphemes. Results revealed that ordinality was the strongest predictor of synesthetic colors for Hiragana characters, followed by sound, and visual shape. A new model is proposed which takes into account the developmental process of grapheme learning. The model provides comprehensive explanation of synesthetic determination processes, including the differences across writing systems.Second, regularities in grapheme-color association were compared across non-synesthetes. They tended to associate more frequent graphemes with more distinctive colors, consistent with synesthetes. The high-synesthetic group in non-synesthetes produced a wider variety of associations. This finding suggested that their synesthetic traits depend more on one-to-one regularities, which lead to their higher consistency over time.