Siblings play key role in child development

Physorg:

PhD candidate in the School of Psychology, Karen O’Brien, said children with autism could have difficulties in social interactions and that their siblings played an important role in their development, particularly when it came to social skills.
“Children acquire the ability to identify mental states, also known as ‘theory of the mind’ (ToM), at around four years of age,” she said.
“Research has shown that children with autism typically struggle on ToM tests and their everyday ToM skills are impaired, making it rare for even the highest-functioning autistic child to pass these tests before the age of 13 years.”
Mental states identified in ToM include intentions, beliefs, desires and emotions, in oneself and other people, and understanding that everyone has their own plans, thoughts, and points of view.
According to Ms O’Brien, typically developing children show a significant advance in ToM understanding between the ages of three to five years.