HMM: A Baby’s Gaze May Signal Autism, Study Finds. “In a study published Wednesday, researchers using eye-tracking technology found that 3-year-olds diagnosed with autism looked less at people’s eyes when they were babies than children who did not develop autism. But contrary to what the researchers expected, the difference was not apparent at birth. It emerged when babies were 2 to 6 months old, and autism experts said that may suggest a window during which the progression toward autism can be halted or slowed.”