Which answer helps define a developmental disability?

A developmental disability is a neurological or mental illness that occurs in children or adolescents and hinders normal development. Such a disorder can sometimes also be traced in adults, but the chance of successful treatment usually decreases with age.

The symptoms are diverse and there can be different causes. Some conditions are permanent, others are temporary. Sometimes the symptoms arise in response to a shocking experience, in other cases the cause is hereditary factors or a physical illness. Environmental factors must also be monitored, as well as educational factors.

All factors in the development of the child continuously influence each other. For example, children with a physical problem can be affected in their self-esteem and thus have a less social attitude. This elicits a response from the environment, which in turn affects the child's psyche.