Triple operations of rendaku processing: Native Chinese and Korean speakers learning Japanese

Abstract

The present study investigated a hypothesis proposing the involvement of three operations in processing Japanese sequential voicing (rendaku): a lexical-specific operation, an etymology-specific operation, and a rule-based operation. Second language (L2) learners of Japanese are in the process of constructing an L2 mental lexicon of Japanese, and this lexicon is assumed to display a clear contrast between rule-based and etymology-specific occurrences of rendaku in early-stage learning and lexical-specific rendaku at later stages as a result of memory-based lexical learning. Native Chinese (N=32) and Korean (N=32) speakers learning Japanese, matched for their lexical and grammatical knowledge, avoided applying rendaku in compounds with a medial voiced obstruent in the second element, indicating that Lyman’s Law is an active principle even in L2 acquisition. Both L2 learner groups also showed sensitivity to lexical strata by distinguishing Japanese-origin words (wago) from Sino-Japanese words (kango) and alphabetic loanwords (gairaigo). Thus, as factors of rendaku processing, Lyman’s Law is considered rule-based while lexical stratum is considered etymology-specific. In contrast, both L2 learner groups showed a low occurrence of rendaku both for Lyman’s Law exceptions (i.e., X+basigo) and for infrequent or rare words (i.e., X+zyootyuu). These instances can be considered memory-based, lexical-specific rendaku, which L2 learners must acquire as individual lexical items. This study indicated that all three described operations were used by L2 Japanese speakers to process rendaku.