Early identification of infants at-risk of autism is important for early intervention, to minimize the family suffering and to allow professional surveillance of possible signs of autistic risk. Lately the literature on autism has witnessed a growing interest in this area of research. The aim of the present paper is to discuss a prospective longitudinal methodology for the identification of early signs of autism through studies with younger siblings of children with autism that could also allow the investigation of subtypes of autism and a better understanding of the triad of impairments that define autism. At first, different kinds of studies about early signs of autism will be presented - parents’ reports, studies of family home videos and joint attention, available instruments and prospective research of younger siblings of children with autism.
Autism; Prospective research; Early identification; Subtypes
