Operationalizing atypical gaze in toddlers with autism spectrum disorders: a cohesion-based approach.

ABSTRACT:

Background

Multiple eye-tracking studies have highlighted the "atypical" nature of social attention in autism. However, it is unclear how "atypical" or "typical" should be quantified.

Methods

We developed a method for identifying moments when members of a group looked at similar places (High-Cohesion Time Frames; HCTFs). We defined typicality as the proximity of gaze points to typically developing (TD) gaze points during TD HCTFs. Comparing toddlers with ASD (n = 112) to developmentally delayed (DD, n = 36) and TD (n = 163) toddlers during a video with Dyadic Bid, Sandwich-Making, Joint Attention, and Animated Toys conditions, we examined (a) individual typicality scores, (b) the relationship between typicality and symptom severity, and (c) HCTF distribu

SUBMITTER: Wang Q 

PROVIDER: S-EPMC5894192 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature