japanese kana
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Author(s):  
Hiroki Higuchi ◽  
Tessei Kobayashi

AbstractLetter similarity (i.e., perceptual distance) is a critical measure to better understand letter perception and literacy development. Despite its importance, however, measurements of letter similarity for non-alphabetic scripts are limited, and the shortage of letter similarity for non-alphabetic script interferes with the identification of the universality and the uniqueness of letter perception systems across different scripts. In the present study, we provide a comprehensive matrix of letter similarity for Japanese kana letters (hiragana and katakana). We obtained the discrimination reaction times for simultaneously presented letter pairs and calculated the perceptual distance of 4,278 letter pairs by inversing the time. The matrix showed significant correlations with previously obtained letter similarity for hiragana and katakana. An additional experiment showed that letter pairs for the same sounds (え–エ) produced significantly slower responses compared with those for different sounds (え–コ). However, the differences in reaction times between the same and different sound conditions were smaller than the sequentially presented conditions, suggesting that the matrix was partially attributable to knowledge-based factors (e.g., letter-sound knowledge). This first comprehensive matrix of letter similarity (i.e., perceptual distance) for Japanese kana letters (hiragana and katakana) will be useful for researchers interested in letter perception and literacy development.


Author(s):  
Luiz Fellipe Machi Pereira ◽  
Fabio Pinhelli ◽  
Edson M. A. Cizeski ◽  
Flávio R. Uber ◽  
Diego Bertolini ◽  
...  

2019 ◽  
Vol 45 (1) ◽  
pp. 183-190 ◽  
Author(s):  
Sachiko Kinoshita ◽  
Teresa Schubert ◽  
Rinus G. Verdonschot
Keyword(s):  

2018 ◽  
Vol 46 (6) ◽  
pp. 1010-1021 ◽  
Author(s):  
Teresa Schubert ◽  
Roderick Gawthrop ◽  
Sachiko Kinoshita
Keyword(s):  

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