Many parents who bring their children to my clinic ask what effect will a child with autism have on a normal sibling. The studies that have been done on the effects of having a sibling with a neuropsychological disorder such as autism are conflicting. Some studies and anecdotal reports show an adverse effect on the sibling without the neuropsychological disorder while others do not. Girls seem to be more adversely affected than boys. Psychological problems in the parents such as depression and a host of other factors must be also considered when examining this issue. (Howling, P. “Living with Impairment: the Effects on Children of having an Autistic Sibling.” See http://mugsy.org/howlin.htm.)
See Case Number 12 "Twinship" at www.ABA4Autism.com
