Does speech emerge from earlier appearing oral motor behaviors?
Does speech emerge from earlier appearing oral motor behaviors?
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DOI：
10.1044/jshr.3905.1034
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发表时间：
1996-10-01
期刊：
影响因子：
--
通讯作者：
Ruark, JL
中科院分区：
文献类型：
--
作者：
Moore, CA;Ruark, JL
本研究旨在量化幼儿在言语和非言语行为中下颌肌的协调组织。7个15个月大的婴儿在自发生产的咀嚼，吸吮，牙牙学语，和讲话。比较这些行为的下颌协调性发现，即使是在真词产生的早期阶段，儿童的协调性也与其他行为的协调性有很大的不同。与早期出现的咀嚼和吮吸相比，真词产生的主要特征是所有下颌肌之间的耦合相对较强，杂色牙牙学语比重复牙学语表现出更强的耦合，还有咀嚼和吮吸在言语过程中下颌拮抗肌之间的耦合激活的发现推翻了早期对成人言语和非言语行为的比较（摩尔，史密斯和林格尔，1988），并且不支持言语协调出现于早期出现的口腔运动行为的建议。
This investigation was designed to quantify the coordinative organization of mandibular muscles in toddlers during speech and nonspeech behaviors. Seven 15-month-olds were observed during spontaneous production of chewing, sucking, babbling, and speech. Comparison of mandibular coordination across these behaviors revealed that, even for children in the earliest stages of true word production, coordination was quite different from that observed for other behaviors, Production of true words was predominantly characterized by relatively stronger coupling among all mandibular muscles compared with earlier-emerging chewing and sucking, Variegated babbling exhibited stronger coupling than reduplicated babbling, as well as chewing and sucking. The finding of coupled activation among mandibular antagonists during speech paralleled earlier comparisons of adult speech and nonspeech behaviors (Moore, Smith, & Ringel, 1988) and did not support the suggestion that speech coordination emerges from earlier appearing oral motor behaviors.