日語促音的知覺研究－以塞音持阻時長及前方母音時長為主要變異數

Perception of a Japanese Geminate Stop: Using Closure Duration and Duration of Preceding Vowel as Major Variables

本研究以日語特殊拍中的促音為研究題材，探討影響日本語母語話者判斷促音峙的語音線索為何。除了以時間性聲學分析的方法，設定塞音持阻時長及前方母音時長為語音實驗的主要變異數以外，並試著藉由實驗結果來瞭解日語促音中，是否存在著範疇式知覺的現象。結果發現：（1）塞音持阻時長、前方母音時長、重音型態3者證實為影響促音知覺的變異數。（2）對日本語母語語者來說，促音的存在與否不惟依據絕對性的語音時長來判斷，且是一種加以心理上判斷的範式知覺現象。

This paper researched how Japanese native perceive a geminate stop. Four factors, ‘closure duration’, ‘the duration of preceding vowel’, ‘the following consonant’, and ‘pitch type’, were ob served in this paper. To investigate the characteristics of auditory perception, 120 stimuli which have a contrast in above four factors are presented to 36 Japanese natives. They were asked to judge whether these stimuli included a geminate stop. The results of this present study showed a significant effect in three factors, ‘closure duration’, ‘the duration of preceding vowel’ and ‘pitch type’. Furthermore, it was also found that Japanese natives perceive closure duration categorically.