Japanese orthographic complexity and speech duration in a reading task
Abstract The number of letters in a word’s orthographic form can affect speech duration (Brewer, Jordan B. 2008. Phonetic reflexes of orthographic characteristics in lexical representation. University of Arizona Doctoral Dissertation; Warner, Natasha, Allard Jongman, Joan Sereno & Rachèl Kemps. 2004. Incomplete neutralization and other sub-phonemic durational differences in production and perception: Evidence from Dutch. Journal of Phonetics 32(2). 251–276. Previous research in this area has been limited to studies of languages with alphabets. The current study expands upon this previous research by investigating effects on speech duration from units of orthographic complexity potentially analogous to letter length in Japanese, a language with a logography. In a modified version of Brewer, Jordan B. 2008. Phonetic reflexes of orthographic characteristics in lexical representation. University of Arizona Doctoral Dissertation, reading task, native Japanese-speaking participants were audio-recorded reading pairs of homophonous words that varied by: 1) number of pen strokes in a single character; or 2) number of whole characters in their orthographic forms. Two-character words were produced significantly longer than one-character words. No significant effect was found from pen strokes on speech duration. These results are presented as evidence that the orthographic duration effect observed in previous studies is not limited to languages with alphabetic writing systems.