How does autism develop? 4 major factors to know!

Autism is a type of autistic disorder, so it is also called autism, and infants and young children are a high-risk group for autism. The biggest difficulty faced by people with autism is social barriers. As for how autism develops, many factors play a role, such as genetics.

(1) Genetic factors

Studies have found that the disease concordance rate in monozygotic twins is higher than that in dizygotic twins. The concordance rate for autism in monozygotic twins is 82%, and in dizygotic twins it is 10%. There are more autistic children in their families than in ordinary families. Autistic siblings and parents have similar cognitive deficits and specific personality traits, all of which indicate that there is a genetic basis for the onset of autism.

(2) Biological factors

The children with the disease have a history of perinatal damage more than normal babies, including congenital rubella, cytomegalovirus infection, premature birth, dystocia, birth trauma, asphyxia, etc. Children with autism are more likely to suffer from epilepsy (10%-15%), and their electroencephalograms are often abnormal. The study found that the left temporal lobe corner of the children was more likely to be enlarged, suggesting that there may be lesions in the temporal lobe of the brain.

(3) Biochemical factors

Dopamine and serotonin levels may be increased in children with autism, as well as elevated adrenaline and norepinephrine in plasma and abnormalities in neurotransmitters such as opioids, but these lack specificity. Brain tissue was found to show abnormalities in nerve cell migration in the cerebellum and a decrease in the number of Purkinje cells. Other studies have reported that autism may be related to the brain's limbic system, amygdala, and hippocampus. Other studies suggest that autism is related to rapid brain growth in the first year after birth.

(4) Family factors

It may be because the parents have improper ways of educating their children or because there is a special form of inheritance in the parents' personalities, or both. The parents of the children are mostly highly educated, introverted, cold and stubborn towards their children, and the family lacks warmth. It has nothing to do with the parenting style of parents. The so-called indifference and formality of parenting shown by some parents of autistic children actually indicate that the parents may have mild similar disorders.