Autism – is disorder that occurs as a result of violation of the brain activity and is characterized by abnormalities in social  interaction  and  communication,  restricted and repetitive behavior. Causes of autism To a large extent the development of autism is associated with genes, but the genetics of autism is complex and unclear, which has a dominant influence on the occurrence of autism spectrum disorders - the interaction of multiple genes or rare mutations with strong effect. The main [...]

A mental retardation diagnosis requires the following three criteria: (1) Significantly sub-average intellectual functioning, (2) concurrent impairments or deficits in at least 2 areas of adaptive functioning, and (3) onset before age 18. The 4 degrees of mental retardation and their corresponding IQ scores, as defined by the DSM are: Mild (IQ = 50-55 to [...]