Peripheral discrimination by three-month-old infants.

3-month-old infants made 2 types of discrimination with their peripheral vision. They discriminated between grossly different figures placed as far out as 30 degrees toward the periphery, and they discriminated between more subtly different figures, which differed only in the shape of their internal elements, out to 10 degrees. The results imply that infants can readily process stimuli with peripheral vision.