FACTOR ANALYSIS OF MRI DERIVED ARTICULATOR SHAPES

正中矢状面舌形的因子分析 定性三维分析)确定了2-3个统计量 足以表示大多数形状的基函数 元音，这可能是潜在的神经运动的结果 并列结构。拟议研究的第一个目标是 通过寻找统计基函数来推广这一结果 舌头的三维形状。它的第二个和第三个目标 研究将探索基函数可能是一种 说话人依赖的行为，由说话人无关的声学控制 限制：拟议研究的第二个目标将是测试 用于基函数中依赖于说话者的变化，而第三个 目的将是确定是否说话者依赖的变化 基函数对元音格式频率有显著影响。 这些实验中的所有舌形都将通过以下方式获得 采集和分割四个说话人的磁共振图像(11个元音，6个 辅音)。在拟议的研究结束时，磁共振图像将 以唯读光碟形式印制，以供其他演讲稿使用 研究人员。

Factor analysis of tongue shapes in the midsagittal plane (supported by qualitative three-dimensional analysis) has identified 2-3 statistical basis functions which are sufficient to represent the shapes of most vowels, and which may be the result of underlying neuromotor coordinative structures. The first aim of the proposed research will be to extend this result by finding statistical basis functions for three-dimensional tongue shapes. The second and third aims of this research will explore the possibility that basis functions may be a speaker-dependent behavior, governed by speaker-independent acoustic constraints: the second aim of the proposed research will be to test for speaker-dependent variation in the basis functions, while the third aim will be to determine whether speaker-dependent variation of the basis functions has a significant effect on vowel format frequencies. All of the tongue shapes in these experiments will be obtained by collecting and segmenting MR images of four speakers (11 vowels, 6 consonants). At the end of the proposed research, MR images will be published on CD-ROM for the benefit of other speech production researchers.