The Classification of Autism, Asperger's Syndrome, and Pervasive Developmental Disorder

@article{Szatmari2000TheCO,
  title={The Classification of Autism, Asperger's Syndrome, and Pervasive Developmental Disorder},
  author={Peter Szatmari},
  journal={The Canadian Journal of Psychiatry},
  year={2000},
  volume={45},
  pages={731 - 738}
}
  • P. Szatmari
  • Published 1 October 2000
  • Psychology
  • The Canadian Journal of Psychiatry
Objective: The current classification of the pervasive developmental disorders (PDDs) as conceptualized in both the DSM-IV and ICD-10 is deeply unsatisfying to many parents, front-line clinicians, and academic researchers. Is the diagnostic validity of the various disorders simply lacking empirical data for full substantiation, or does the overall conceptualization of the category have more fundamental problems, not reflecting the “true” nature of the phenomena? This paper argues the latter… 

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References

SHOWING 1-10 OF 47 REFERENCES
The validity of autistic spectrum disorders: A literature review
  • P. Szatmari
  • Psychology
    Journal of autism and developmental disorders
  • 1992
The objective of this literature review is to assess the validity of autistic spectrum disorders (ASD). Twenty papers were identified that adequately investigated the internal or external validity of
Autism and other Pervasive Developmental Disorders: Exploring the Dimensional View
  • G. Myhr
  • Psychology
    Canadian journal of psychiatry. Revue canadienne de psychiatrie
  • 1998
TLDR
Examination of empirical data on children with autistic disorder, Asperger's disorder, and pervasive developmental disorder not otherwise specified for continuities or distinguishing features between disorders and to see to what extent the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) diagnostic criteria reflect observed data suggests children exhibiting the triad of autistic impairments can be seen as suffering from disorders on a PDD continuum.
Comparison of clinical symptoms in autism and Asperger's disorder.
TLDR
Clinicians appear to be diagnosing AsD and AD on the basis of published research and case study accounts, and the findings question whether DSM-IV and ICD-10 criteria adequately describe the AsD individual, particularly in the communication domain.
Asperger's syndrome: evidence of an empirical distinction from high-functioning autism.
TLDR
This study compared the neuropsychological profiles of individuals with high-functioning autism (HFA) and Asperger's syndrome (AS) and suggests that HFA and AS are empirically distinguishable on measures independent of diagnostic criteria.
Did Asperger's cases have Asperger disorder? A research note.
  • J. N. Miller, S. Ozonoff
  • Psychology, Medicine
    Journal of child psychology and psychiatry, and allied disciplines
  • 1997
TLDR
Examining the four cases Asperger originally presented in his seminal paper, using DSM-IV criteria to determine whether a diagnosis of Autistic or AsPerger Disorder is most appropriate, found that all four cases met DSM- IV criteria for Autistic Disorder, rather than Aspergers Disorder.
ASPERGER'S SYNDROME AND AUTISM: COMPARISON OF EARLY HISTORY AND OUTCOME
TLDR
There were no substantive, qualitative differences between the AS and autistic groups, indicating that AS should be considered a mild form of high‐functioning autism, and the inclusion of AS among the autistic spectrum of disorders has implications for aetiological studies and for prevalence estimates of the pervasive developmental disorders.
Pervasive developmental disorders: From DSM-III to DSM-III-R
TLDR
A brief history of the development of the DSM-II-R (American Psychiatric Association [APA], 1987) section on Pervasive Developmental Disorders is provided.
Are there subgroups within the autistic spectrum? A cluster analysis of a group of children with autistic spectrum disorders.
TLDR
Although subgroups were identified which bore some relationship to clinical differentiation of autistic, Asperger syndrome, and Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) cases, the nature of the differences appeared strongly related to ability variables.
Exploring the Boundaries of Pervasive Developmental Disorder Not Otherwise Specified: Analyses of Data from the DSM-IV Autistic Disorder Field Trial
TLDR
A scoring rule based on a short set of 7 ICD-10/DSM-IV criteria with a cutoff of 3 items and 1 social interaction item set as mandatory had the best balance between high sensitivity and high specificity in discriminating PDDNOS from non-PDD disorders.
Follow-up of "atypical" children--a brief report.
...
...