What is the cause of behaviors in autism people?

There is no single known cause of autism spectrum disorders (ASD), but rather a complex interplay of genetic and environmental factors. While the exact causes of many types of ASDs remain unknown, research suggests that a combination of genetic, environmental and prenatal factors may be responsible for the development of these disorders. It's important to note that ASD is not caused by a single gene mutation, but rather involves multiple genes with variations in expression and function. Some of the possible genetic causes include mutations or variations in genes related to brain development and communication, as well as those involved in regulatory pathways and immune system function. Environmental factors, such as maternal infections, toxins or certain drugs taken during pregnancy, may also play a role. Additionally, prenatal factors such as advanced parental age, low birth weight, and complications during pregnancy may also contribute to the risk of ASD. Ongoing research aims to further understand the specific genetic and environmental interactions that lead to ASDs and how they affect brain development and function.