Wednesday, December 26, 2018

Home Videos May Speed Autism Diagnosis

For the study, a group of non-expert raters were asked to watch videos of 162 children, 116 of whom had autism and the remainder who had no diagnosis. All of the videos showed the child’s face and hands, the opportunity to use toys or other objects as well as the option for social engagement. The raters — who did not know about the children’s diagnostic histories — were asked to answer 30 questions with a simple “yes” or “no” about whether each child made eye contact, expressed emotion and other behaviors.

Information from the raters was then input into eight different algorithms. The most successful model relied on ratings for five behaviors and was able to accurately label 94.5 percent of children with autism and 77.4 percent of those without.
A subsequent test of the five-question model involving an additional 66 videos correctly flagged 87.8 percent of those with autism and 72.7 percent of the kids without.