A nonlinear model of word length effects in apraxia of speech
A nonlinear model of word length effects in apraxia of speech
复制标题
言语失用症中字长效应的非线性模型
DOI：
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复制
发表时间：
2005
影响因子：
3.4
通讯作者：
W. Ziegler
中科院分区：
文献类型：
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作者：
W. Ziegler
先前对正常和无序口语产生中长度效应的研究是基于将单词视为音素或音节串的线性视图。这种方法受到音素和音节数量与音节复杂性的固有相互作用的限制。因此，本研究基于单词形式表示的度量树模型，该模型是通过预测言语失用中准确单词产生的非线性回归模型来实现的。来自 20 个失语者的 100 个数据样本被用来估计由 72 个精心控制的不同长度的单词和非单词组成的数据语料库的准确生产概率。非线性回归模型解释了这些数据中近 80% 的方差。该模型的形状表明，在言语失用症中，在边缘和脚部水平处保留了语音表征的凝聚力。
Previous studies of length effects in normal and disordered spoken language production were based on a linear view of words as strings of phonemes or syllables. This approach was limited by an inherent interaction of numbers of phonemes and syllables with syllable complexity. The present investigation was therefore based on a metrical tree model of word form representations, which was implemented by a nonlinear regression model predicting accurate word production in apraxia of speech. One hundred data samples from 20 apraxic speakers were used to estimate the probabilties of accurate production for a data corpus of 72 carefully controlled words and nonwords of varying lengths. The nonlinear regression model explained almost 80% of the variance in these data. The shape of the model indicated a preserved cohesion of phonetic representations at the rime and the foot level in apraxia of speech.
影响因子：
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作者：
Schiff,HB;Alexander,MP;Naeser,MA;Galaburda,AM
通讯作者：
Galaburda,AM
影响因子：
14.5
作者：
Hillis, AE;Work, M;Maurer, K
通讯作者：
Maurer, K