von Hapsburg Deborah, Davis Barbara L, MacNeilage Peter F
Department of Audiology and Speech Pathology, University of Tennessee, Knoxville, 548 South Stadium Hall, Knoxville, TN 37996, USA.
J Speech Lang Hear Res. 2008 Apr;51(2):306-20. doi: 10.1044/1092-4388(2008/023).
According to the frames then content (f/c) hypothesis (P. F. MacNeilage & B. L. Davis, 1990), the internal structure of syllables with consonant plus vowel structure (CV) during canonical babbling is determined primarily by production system properties related to rhythmic mandibular oscillations (motor frames). The purpose of this study was to evaluate whether auditory sensitivity affects the internal organization of CV syllables in infants identified in the 1st year of life with hearing loss.
CV co-occurrence patterns were analyzed for 13 infants with varying degrees of hearing sensitivity (normal hearing [n = 4], mild-to-moderately severe hearing loss (n = 6), and severe-to-profound hearing loss [n = 3]). Consonants and vowels within CV syllables were grouped according to place of articulation. Thus, an inventory of CV syllables with labial, coronal, and dorsal consonant onsets was created.
77% of predicted frames were confirmed above chance. Additionally, there was no association between pure-tone average and any CV co-occurrence. Finally, co-occurrences that were not predicted by the hypothesis were statistically confirmed in very few instances.
Auditory sensitivity may not influence intrasyllabic organization within CV syllables once infants begin canonical babbling, as the co-occurrences observed are primarily those predicted by the f/c hypothesis.
根据先框架后内容（f/c）假说（P.F.麦克尼尔奇和B.L.戴维斯，1990年），规范咿呀学语期间具有辅音加元音结构（CV）的音节的内部结构主要由与节律性下颌振荡相关的发声系统特性（运动框架）决定。本研究的目的是评估听觉敏感性是否会影响1岁时被确诊为听力损失的婴儿的CV音节的内部组织。
分析了13名听力敏感性不同的婴儿（正常听力[n = 4]、轻度至中度重度听力损失[n = 6]、重度至极重度听力损失[n = 3]）的CV共现模式。CV音节内的辅音和元音根据发音部位进行分组。因此，创建了一个包含唇音、齿音和背音辅音起始的CV音节清单。
77%的预测框架得到了高于机遇水平的证实。此外，纯音平均值与任何CV共现之间均无关联。最后，极少有未被该假说预测到的共现情况得到统计学证实。
一旦婴儿开始规范咿呀学语，听觉敏感性可能不会影响CV音节内的音节组织，因为观察到的共现情况主要是f/c假说所预测的那些。
