The app relies on artificial intelligence and could help researchers standardize studies of pupil differences in autistic people and in mouse models of autism.

Mice with mutations in the autism-linked gene SYNGAP1 have trouble sensing touch, which may stem in part from brain-circuit alterations and dulled alertness.

Like so many other events this year, autism’s biggest annual conference — the International Society for Autism Research meeting — was forced to go virtual because of the coronavirus pandemic.

Pupil response suggests autistic people have atypical activity in a part of the brain that regulates attention.

The pupils of babies later diagnosed with autism shrink more in response to light than those of their typical peers.

People with autism aren’t easily surprised, the social camouflage some girls and women with autism use may preclude diagnosis, and autism-related genes are rooted deep in human ancestry.

The pupils of preschoolers with autism are slow to constrict in response to light, a phenomenon that may serve as an early marker of autism risk.

The pupils of 10-month-old infants who have a sibling with autism constrict unusually fast in response to flashes of light, hinting that this reflex could be an early sign of the disorder.

An ear muscle is more sensitive to loud sounds in children with autism than in controls, according to a study published 3 July in Autism Research. The researchers say this measure could serve as a clinical biomarker of the disorder, but others fiercely disagree.

More than half of children with autism have a delayed pupillary response to light, along with a high heart rate and other physiological features, according an unpublished study presented Thursday at the 2013 International Meeting for Autism Research in San Sebastián, Spain.