Etiology of Pervasive Developmental Disorders.

Introduction

The quest to define the unfeigned etiology of a PDD (Pervasive developmental Dis modulate) has been a long winding road of various theories and hypotheses that mutu aloney support and contradict each other. These disorders atomic number 18 so multi-facetted that even out prognosis can be difficult. Deciphering all told of the various planes of a PDD in addition to creating a unifying foundation for it is do even more difficult by the sporadic heading of Savantism in one-on-ones with one of the disorders. The purpose of this paper is to provide an overview of the brisk research on PDDs, present an alternative view of their etiologies and reason with the presentation of a unifying hypothesis on the true etiology of PDDs as a whole.

The Disorders.

With most developmental disorders, an individual simply portrays an impeded developmental level. For example, a 12 category centenarian that operates at a 5 year old level. With Pervasive Developmental Disorders however, the individual exhibits actions that are not prevalent at any stage of development. These can include, just are not limited to: problems with both verbal and non verbal communication, rote memory and theory of mind function difficulties, and repetitive, echolalic speech patterns (APA, 1994).

Theories.

The mass of etiological research has been based primarilyAutism is not the only PDD, but its symptoms are so broad in range that its etiology would be very similar to the etiology of almost all others in this category of disorder. Most disorders can usually be traced back to a specific cause or a plethora of complimentary causes. This has not been the case with pervasive developmental disorders. Various theories on the cause have been brought to point, however all of them have had evidence to the contrary and it seems as if the researchers were led by their bias upon interpretation...

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