Developmental Disorders Essay Example | Topics and Well Written Essays - 500 words

Developmental Disorders - Essay Example ired non verbal behavior and movements, diminished interest in playing and interaction with peers, lack of spontaneity and emotional reciprocity, delay or total lack in speech, repetitive use of language, behavior patterns or mannerisms and constant preoccupation with certain objects (Lord et al; Brereton and Tonge). Recent research has revealed that the cognitive ability of children with autism ranges from severely disabled to normal. They have low IQ scores and have difficulty in verbal sequencing. However, they have good immediate memory and visuo-spatial skills. The language, speech tone and modulation of these children are quite unusual and they sound mechanical and devoid of any emotions. They might use abnormal words, talk out of context or simply repeat them. They also have difficulty in understanding spoken language. Autistic children also suffer from social impairments such as disinterest in interpersonal relationships, lack of non-verbal communication with people and inability to play with other children. Doctors believe that these may change as the child grows. The genetics of autism has revealed that susceptibility to the disorder may be due to the presence of at least 3 abnormal genes. However, more research should be carried out to determine the genetic and environmental factors, if any, that may cause the disorder. Neurobiology Neurobiological evidence suggests that the brains of people with autism are underdeveloped with abnormalities observed in the brain-stem structures. Current research also points to the involvement of the cerebral cortex for onset of clinical symptoms (Hughes). The heterogeneity of the disorder has made it difficult to study the neural systems involved and hence a detailed study of the neurobiology of autism would require proper categorization of the people with the disorder in order to find out the various brain regions causing the various impairments (Lord et al). The key clinical features include narrowing of the