Expert Answers
pohnpei397 eNotes educator| Certified Educator

Autism is a disorder that has to do with a child's neural development.  It causes those who have it to have problems interacting and communicating with other people.  It also tends to cause them to engage in repetitive behaviors and to focus intensely on unusual things.

Although it is not clear exactly how, autism is passed along genetically.  It always shows up in children by the time they are 3.

Autism has come to be diagnosed much more in recent years than it had been.  The reasons for this increase are not clear.

giorgiana1976 | Student

The term autism is used in a large sense of disorders from autism spectrum. When we refer to autism as a specific disorder of the spectrum, we use the term classical autism or typical.

Autism is a disorder of development of neurobiological origin and is considered one of the most severe neuropsychiatric disorders of  the childhood.

Autism is a central disorder from the  full spectrum of developmental disorders known as autism spectrum disorders  or abutting development disorders (pervasive developmental disorders), the official term used in international classification systems (Diagnostic and Statistical Manual, DSM IV, International Classification of Diseases-ICD 10). These disorders show a wide variety of clinical manifestations, presumed to be the result of development multifactorial disorders of central nervous system or genetic.

Causes - specific causes are still unknown.

Disorder manifests itself in early childhood, between 1.6 and 3 years. It can be diagnosed at birth for signs (behavioral patterns based on which diagnosis is made) are not or can not be easily identified before 18 months.In recent years researchers increasingly recognize that may be observed certain precursors of these behavioral patterns in the earlier stages of child development,number of tools that try to detect autism at the age of 18 months growing also.

Sometimes there is a period of seemingly normal development, after which the child will be isolated and lose skills gained. This may be a loss of use of the words used by child until then, the loss of eye contact, interest in play or social withdrawal.

Usually, autism is diagnosed earlier especially if it is accompanied by mental retardation and less diagnosed among children and adolescents with average or above average intelligence.

Autism is where a person's drain develops slowly than others. Autistic kids sometimes have trouble socializing with others, trouble learning things, etc.

loraaa | Student


They also may react to what's going on around them in unusual ways. Normal sounds may really bother someone with autism — so much so that the person covers his or her ears. Being touched, even in a gentle way, may feel uncomfortable....

loraaa | Student


Autism  causes kids to experience the world differently from the way most other kids do. It's hard for kids with autism to talk with other people and express themselves using words. Kids who have autism usually keep to themselves and many can't communicate without special help.