Studies on the phonological properties governing grammatical processes of Japanese prosodic morphology

本研究试图揭示语音特性，作为原则控制的韵律为基础的形态在日语中的良好的形式。由于日语韵律形态学的大部分都出现在模仿词汇和外来词中，我主要研究了在这两个词汇类别中观察到的形态语音过程。基于生成音系学框架下的一些理论概念，我发现了许多有趣的音系机制。特别是，我对制约互动机制进行了深入的研究，它对输出形式的语法评价产生了深远的影响。作为研究的主要结果，我发现了一个显著的趋势，即无标记结构肯定是日语中各种韵律形态的最佳输出模式。这与优选论的最新理论结果完全一致。

The present research project attempts to shed light on phonological properties which serve as principles controlling the well-formedness of prosody-based morphology in Japanese. Because a large majority of Japanese prosodic morphology appears both in mimetic vocabulary and in loanwords, I have mainly examined the morpho-phonological processes observed in these two lexical categories. Based on some theoretical notions developed in the framework of generative phonology, I discovered quite a few interesting phonological mechanisms underlying various types of phenomena. In particular, I did an in-depth investigation of the mechanism of constraint interaction, which exerts a profound effect on grammatical evaluation of output forms. As the main result of the inquiry, I found a notable tendency that unmarked structure is definitely favored as an optimal output pattern of various kinds of prosody-based morphology in Japanese. This is in full accordance with recent theoretical results developed in Optimality Theory.