Development of Language Learning Program based on Analysis of Phonological Processing Abilities of the Children with developmental Phonological Disorders.

[目的]研究日本本土成人和持续性发育性发音障碍儿童音节-声母摩擦音节的知觉权重，以阐明这种障碍背后的机制，并寻找有效的治疗方法。[方法]42名日语发育性语音障碍成人和2名日语发育性发音障碍儿童从a/∫/-/S/Continuum，后接/α/as/∫α/或/Sα/识别记号。刺激由自然/S/和/∫/噪音和合成/α/人声部分组成。为了产生辅音部分，将/S/和/∫/从一个以日语为母语的男性说话者录制的/∫α/和/Sα/音节中分离出来。这些摩擦噪声的频谱沿着九步连续体变化，从适合/∫/的一个到适合/S/的一个。使用XKL Klatt，1984)创建了九个合成声部，形成一个九步连续体，在从最像/∫/到最像/S/的共振峰转变中不断变化。[结果与讨论]大多数成年人以与英语为母语的成年人相同的方式更多地重视摩擦噪声的频谱，而不是共振峰转变。然而，与大多数成年人相比，少数患有持续性发育性发音障碍的成年人和儿童更多地根据共振峰转变来判断，而不是根据摩擦噪音的频谱来判断，比如3至4岁的典型发育中的英语母语儿童(Nitrouer&Miller，[结论]成年人的知觉权重表明他们的知觉并不是一致的。发育性语音障碍儿童的知觉权重表明，由于言语加工缺陷，他们的言语知觉能力可能与一般发育儿童的不同。

【Purpose】 We investigated the perceptual weighting of syllable-initial fricatives for native Japanese adults and for children with persistent developmental articulation disorder to elucidate the mechanism behind the disorder and to identify an effective treatment.【Method】 Forty-two native Japanese adults and 2 native Japanese children with developmental phonological disorder identified tokens from a /∫/ - /s/ continuum followed by /α/ as /∫α/ or /sα/. Stimuli consisted of natural /s/ and /∫/ noises combined with synthetic /α/ vocalic portions. In order to create the consonant portion, /s/ and /∫/ were separated from /∫α/ and /sα/ syllables recorded by a native Japanese male speaker. These spectra of fricative noises were varied along a nine-step continuum, from one appropriate for /∫/ to one appropriate for /s/. Nine synthetic vocalic portions were created using XKL Klatt, 1984) to form a nine-step continuum, varying in formant transitions changing continuously from one most like /∫/ to one most like /s/.【Results & Discussion】 Most adults weighted to the spectrum of the fricative noise more than to formant transitions in the same manner as English native adults, however, as compared with most adults, a small number of adults and the children with persistent developmental articulation disorder judged based more on the formant transitions than on the spectrum of the fricative noise like 3- to 4-year-old typically developing English native children (Nittrouer & Miller, 1997).【Conclusion】 The perceptual weight assigned by adults suggested that they did not perceive uniformly. The perceptual weight assigned by children with developmental phonological disorder indicated that their speech perception ability might develop differently from that of typically developing children because of speech processing deficits.