To improve recognition of the early signs of ASD among pediatricians, parents, and early intervention providers, autism researcher Dr. Rebecca Landa of Kennedy Krieger Institute has developed this free 9-minute video tutorial on ASD behavioral signs in one-year-olds. The tutorial consists of six video clips comparing toddlers who show no signs of ASD to toddlers who show early signs of ASD. Each video is presented with voice-over explaining how the specific behaviors exhibited by the child, as they occur on screen, are either indicative of ASD or typical child development.