Buckhalt J A, Rutherford R B, Goldberg K E
Am J Ment Defic. 1978 Jan;82(4):337-43.
While it appears probable that parental expectancies due to early knowledge of the condition of Down's syndrome in infants affects parent-child interactions, little data are available showing how interactions are affected. In an observational, laboratory-based study, we compared verbal and nonverbal interactions between 10 mothers and their Down's syndrome infants and 10 mothers and their nonretarded infants. Although there was no difference between the groups in mothers' language complexity, mothers of Down's syndrome children spoke at a significantly faster rate. Observational measures of infants showed that Down's syndrome babies smiled and vocalized less, but mothers in the two groups failed to differ significantly on the nonverbal interactional behavior observed. The results were discussed in relation to the conclusions of other investigators who have speculated that language delays in Down's syndrome children may be due in part to differences in the environment provided by caregivers.
虽然婴儿唐氏综合征病情的早期知晓可能会使父母的期望影响亲子互动，但几乎没有数据表明互动是如何受到影响的。在一项基于实验室的观察性研究中，我们比较了10位母亲与她们患有唐氏综合征的婴儿以及10位母亲与她们发育正常的婴儿之间的言语和非言语互动。尽管两组母亲的语言复杂性没有差异，但患有唐氏综合征孩子的母亲说话速度明显更快。对婴儿的观察指标显示，唐氏综合征婴儿微笑和发声较少，但两组母亲在观察到的非言语互动行为上没有显著差异。我们结合其他研究者的结论对结果进行了讨论，这些研究者推测唐氏综合征儿童的语言发育迟缓可能部分归因于照顾者提供的环境差异。
