Autistic children’s reading comprehension revisited through eye-tracking: Evidence from bridging inferencing

Pragmatic language impairments are universally observed in Autism Spectrum Disorders. Inferencing, i.e., combining information within text and using background knowledge to go beyond what is explicitly stated in the text to make a conjecture, has been a challenging pragmatic domain for autistic children. Most studies that have investigated inferencing in autism have used behavioral measurements. The objective of the current study was to assess inferencing in autistic and age-matched typically-developing children by employing eye-tracking to capture children’s ‘in-the-moment’ eye gaze behaviors while reading short passages. We also investigated links between children’s inferencing and executive function skills. The study included 19 autistic children and 19 age-matched typically-developing children. Groups were administered an eye-tracking task that assessed children’s inferencing skills while reading short vignettes that differed in a critical word that supported inferencing or not. Children were asked to read the vignettes and then answer questions that were either primed or not by the inference. The two groups were also assessed on executive functions, including working memory and attention. We found that autistic children exhibited lower comprehension accuracy in passages not primed by inferencing as compared to those that were primed, and also spent more looking time on primed passages than the typically-developing children. Moreover, while inferencing in typically-developing children was significantly related to their executive function skills, no such relations were observed for the autistic group. The overall findings show that reading comprehension for the autistic children was reduced when questions did not anchor to previous discourse through bridging inferencing. Finally, inferencing in the autistic group did not rely on executive functions to the same extent as in typically-developing children. • Autistic children had difficulty with comprehending discourse that was not supported by inferencing. • Inferencing is costlier for autistic children as compared to typically-developing children. • No link found between inferencing and executive functions in autistic children. • Lack of coherence in text lowers autistic children’s comprehension efficiency.