Pervasive Development or Autistic Spectrum Disorders Essay

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Definition of Pervasive Development Disorder:
Any of a group of disorders of infancy, childhood, or adolescence that are characterized by distortions in the development of the basic psychological functions such as language, social skills, attention, perception, reality testing, and movement. http://dictionary.reference.com/browse/pervasivedevelopmentaldisorder
Pervasive developmental disorder was first used in the 1980’s to describe this class of neurological disorders that can impair social and communication skills and repetitive behaviors. PDD itself is not actually a disorder. It’s a description. It is somewhat of an umbrella of multiple disorders that can spread throughout a number of impairments in social interactions as well as
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None of the above pragmatic dysfunctions are measured on traditional language assessment instruments because traditional tests focus mostly on linguistic structure and meaning rather than on pragmatic language use (Anderson, Lord, & Heinz, 2005; Bishop, 1998; Bishop & Baird, 2001; Young et al., 2005). Thus, when a high-functioning child with ASD demonstrates intelligence scores in the normal range and obtains scores within normal limits on traditional language measures, it is difficult for parents and professionals to document the need for intervention even though the child’s dysfunctional social language skills are evident in conversation and place him or her in jeopardy for full participation in school and community environments (Kamhi, 1998; Young et al., 2005). Children and adults with any spectrum of autism have many struggles with pragmatics of language. Social interactions have proven to be very difficult for someone not understanding how to respond while having conversation with another peer.
Most children with autism spectrum disorders (ASD) have delays in language development relative to their nonverbal mental age (Stevens et al., 2000; Tager-Flushberg, 1988; Tager-Flusberg & Sullivan, 1998) and approximately half of young children with autism fail to acquire speech as their primary mode of communication (Prizant, 1996).