Yoder P J, Hooshyar N, Klee T, Schaffer M
Vanderbilt University, Nashville, Tennessee, USA.
J Intellect Disabil Res. 1996 Dec;40 ( Pt 6):557-67. doi: 10.1046/j.1365-2788.1996.02929.x.
Sixteen children with language delays and their mothers were studied to identify the types of child utterances mothers were most likely to expand. Eight of these children had Down's syndrome (DS), while the other eight were pairwise-matched for mean length of utterance (MLU) and did not have DS, but were language delayed. Twenty-minute mother-child free-play sessions were videotaped and transcribed. Trained observers coded utterances for child intelligibility, child utterance length, adult expansions and adult non-expansions. Sequential analysis results indicated that mothers of children with DS were more likely to expand partially intelligible multi-word utterances than to expand fully intelligible multi-word utterances. The opposite pattern occurred in the dyads without DS. Single-word utterances were least likely to be expanded in both groups. The implications of the results for language intervention and future research are discussed.
对16名语言发育迟缓儿童及其母亲进行了研究，以确定母亲最有可能扩展的儿童话语类型。其中8名儿童患有唐氏综合征（DS），另外8名儿童在话语平均长度（MLU）上进行了配对，他们没有患DS，但存在语言发育迟缓。对20分钟的母子自由玩耍环节进行了录像和转录。训练有素的观察者对话语进行编码，评估儿童的可理解性、儿童话语长度、成人扩展和成人非扩展情况。序列分析结果表明，患有DS的儿童的母亲更有可能扩展部分可理解的多词语句，而不是完全可理解的多词语句。在没有DS的二元组中则出现了相反的模式。两组中，单词语句最不可能被扩展。讨论了研究结果对语言干预和未来研究的意义。
