http://cogprints.org/9132/
Autism spectrum disorders: A relational cause
Jones and Klin (1) showed that newborns who will later develop autism spectrum disorders (ASDs) pay normal attention to eyes, but that attention declines from 2-6 months. This shows, they say, how 'initial genotypic vulnerabilities' cause ASDs. Their results suggest, however, that ASDs are caused by insufficient practice of early eye-contact.
McDowell, Dr Maxson J
Behavioral Neuroscience
Theoretical Biology
Developmental Psychology
Maxson J
McDowell