The way that parents communicate with their typically developing infants is associated with later infant language development. Here we aim to show that these associations are observed in infants subsequently diagnosed with autism spectrum disorder (ASD). This study had three groups: high‐familial‐risk infants who did not have ASD (n = 46); high‐familial‐risk infants who had ASD (n = 14); and low‐familial‐risk infants who exhibited typical development (n = 36). All‐day home language recordings were collected at 9 and 15 months, and language skills were assessed at 24 months. Across all infants in the study, including those with ASD, a richer home language environment (e.g., hearing more adult words and experiencing more conversational turns) at 9 and 15 months was associated with better language skills. Higher parental educational attainment was associated with a richer home language environment. Mediation analyses showed that the effect of education on child language skills was explained by the richness of the home language environment. Exploratory analyses revealed that typically developing infants experience an increase in caregiver–child conversational turns across 9–15 months, a pattern not seen in children with ASD. The current study shows that parent behavior during the earliest stages of life can have a significant impact on later development, highlighting the home language environment as means to support development in infants with ASD. Autism Res 2019, 12: 1784–1795. © 2019 International Society for Autism Research, Wiley Periodicals, Inc.

中文翻译：

---

早期的语言接触有助于患有和不患有自闭症的婴儿的后期语言技能。

父母与通常发育中的婴儿交流的方式与后来的婴儿语言发展有关。在这里，我们旨在证明在随后被诊断出患有自闭症谱系障碍（ASD）的婴儿中观察到了这些关联。这项研究分为三组：没有ASD的高家族危险婴儿（n = 46）；高危婴儿。患有ASD的高家族风险婴儿（n = 14）; 表现出典型发育的低家族风险婴儿（n= 36）。在9和15个月时收集了全天的家庭语言记录，并在24个月时评估了语言技能。在该研究的所有婴儿中，包括患有ASD的婴儿，在9和15个月时拥有更丰富的家庭语言环境（例如，听到更多的成人单词并经历更多的会话转向）与更好的语言技能相关。较高的父母受教育程度与更丰富的家庭语言环境有关。调解分析表明，家庭语言环境的丰富性解释了教育对儿童语言技能的影响。探索性分析表明，通常发育中的婴儿在9-15个月内会经历照料者与儿童交谈的转变，这是ASD儿童所没有的。自闭症研究2019，12：1784–1795。©2019国际自闭症研究会，Wiley Periodicals，Inc.