膠縣方言輕聲前連鎖音變

Circular Tonal Chain Shifts in Jiaoxian Compound Words

本文以優選理論分析膠縣方言輕聲前連鎖音變現象。本研究認為連鎖變調的動機是為了減少發音上的困難，而各聲調的難易程度可由「聲調有標刻度」(tonal markedness scale)得知。當聲調變為較為有標的形式時，是因為「保留差異性」(PC)不允許兩不同聲調具相同的輸出值。「保留差異性」則是由「反信實制約」（OO anti-faithfulness constraints)所得來，其要求兩相關字詞表現不同的特徵。

This study examines the tonal chain shifts in pre-neutral toned syllables of Jiaoxian compound words, using the framework of Optimality Theory. The tonal chain shifts are motivated by reducing articulatory effort according to the tonal markedness scale. When a tone shifts to a more marked one, it is because of the anti-neutralization nature, which can be captured by Preserving Contrasts (PC). PC keeps feature contrast in the output. The maintenance of PC comes from transderivational anti-faithfulness, and the output-to-output anti-faithfulness constraints evaluate a pair of related words and require dissimilarity between them.