Center for Autism Spectrum Disorders, Children's National Health System, Washington, DC, USA.
Child Study Center, Yale University School of Medicine, New Haven, CT, USA.
J Autism Dev Disord. 2021 Jul;51(7):2519-2530. doi: 10.1007/s10803-020-04730-x.
Infants show shifting patterns of visual engagement to faces over the first years of life. To explore the adaptive implications of this engagement, we collected eye-tracking measures on cross-sectional samples of 10-25-month-old typically developing toddlers (TD;N = 28) and those with autism spectrum disorder (ASD;N = 54). Concurrent language assessments were conducted and relationships between visual engagement and expressive and receptive language were analyzed between groups, and within ASD subgroups. TD and ASD toddlers exhibited greater mouth- than eye-looking, with TD exhibiting higher levels of mouth-looking than ASD. Mouth-looking was positively associated with expressive language in TD toddlers, and in ASD toddlers who had acquired first words. Mouth-looking was unrelated to expressive language in ASD toddlers who had not yet acquired first words.
婴儿在生命的头几年会表现出对人脸的视觉参与模式的变化。为了探索这种参与的适应意义，我们在 10-25 个月大的典型发育迟缓幼儿（TD；N=28）和自闭症谱系障碍（ASD；N=54）的横向样本中收集了眼动追踪测量数据。同时进行了语言评估，并分析了视觉参与与表达和接受性语言之间的关系，以及在 ASD 亚组中。TD 和 ASD 幼儿表现出更多的嘴巴注视而不是眼睛注视，TD 幼儿的嘴巴注视水平高于 ASD 幼儿。在 TD 幼儿中，嘴巴注视与表达性语言呈正相关，在已经掌握了第一个单词的 ASD 幼儿中也是如此。在尚未掌握第一个单词的 ASD 幼儿中，嘴巴注视与表达性语言无关。
