ACOUSTIC PATTERNS OF APRAXIA OF SPEECH
ACOUSTIC PATTERNS OF APRAXIA OF SPEECH
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DOI：
10.1044/jshr.2602.231
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发表时间：
1983-01-01
期刊：
影响因子：
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通讯作者：
ROSENBEK, JC
中科院分区：
文献类型：
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作者：
KENT, RD;ROSENBEK, JC
言语失用症（或言语失用症）是一种有争议的疾病，被一些人认为是言语运动编程的障碍。由于这种疾病的特征是高阶错误，如易位和节段添加以及明显的发音不协调的错误，它似乎反映了对神经系统的相对高水平的损害。本文报告了7例言语失用症患者的言语声学描述，但无严重的失语症，尤其是语法缺失。声学结果表明，各种节段和韵律异常，包括缓慢的语速与转换，稳定状态，和音节间停顿，减少跨音节的强度变化;缓慢和不准确的运动的发音;不协调的发声与其他发音;启动困难;和错误的选择或序列的段。这些错误模式进行了讨论相对于运动控制理论的基础上的时空图式。此外，考虑到语音与运动编程障碍的言语失用症的争议。
Apraxia of speech (or verbal apraxia) is a controversial disorder, considered by some to be an impairment of the motor programming of speech. Because the disorder is characterized by higher order errors such as metathesis and segment addition as well as by errors of apparent dyscoordination of articulation, it seems to reflect a relatively high level of damage to the nervous system. This report presents acoustic descriptions of the speech of 7 persons diagnosed as having apraxia of speech but without severe aphastic impairment, especially agrammatism. The acoustic results indicate a variety of segmental and prosodic abnormalities, including slow speaking rate with prolongations of transitions, steady states, and intersyllable pauses; reduced intensity variation across syllables; slow and inaccurate movements of the articulators; incoordination of voicing with other articulations; initiation difficulties; and errors of selection or sequencing of segments. These error patterns are discussed with respect to a theory of motor control based on spatial-temporal schemata. In addition, consideration is given to the controversy about phonologic vs. motor programming impairment in apraxia of speech.