Specific developmental disorder
|Specific developmental disorder|
|Classification and external resources|
Specific developmental disorders are disorders in which development is delayed in one specific area or areas, and in which basically all other areas of development are not affected. Specific developmental disorders are as opposed to pervasive developmental disorders that are characterized by delays in the development of multiple basic functions including socialization and communication.
The tenth revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) has four categories of specific developmental disorder: specific developmental disorders of speech and language, specific developmental disorders of scholastic skills, specific developmental disorder of motor function, and mixed specific developmental disorder.
In the third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III), SDD was opposed to the pervasive developmental disorders (PDD). There were two factors that were considered:
- The specificity of the impairment: in SDD there is one single domain that is affected, whereas in PDD multiple areas of functioning are affected.
- The nature of the impairment: development in SDD is delayed but not otherwise abnormal, whereas in PDD there are behavioral deviations that are not typical for any developmental stage.
In the fourth edition of the DSM specific developmental disorders are no longer grouped together. Instead they are reclassified as communication disorders, learning disorders, and motor skills disorders.
Comparison and conditions
Specific developmental disorders of speech and language (F80):
Specific developmental disorders of scholastic skills (F81):
- Ahuja Vyas: Textbook of Postgraduate Psychiatry (2 Vols.), 2nd ed. 1999
- Dennis Cantwell & Lorian Baker: Developmental Speech and Language Disorders, 1987, page 4
- Sir Michael Rutter, Eric A. Taylor: Child and Adolescent Psychiatry, 4th ed. 2005
- Robert Jean Campbell, III: Campbell's Psychiatric Dictionary, 2003, page 184
- http://apps.who.int/classifications/icd10/browse/2010/en#/F80 Reference for all ICD-10 disorders mentioned in the table.
- http://behavenet.com/apa-diagnostic-classification-dsm-iv-tr#301 Reference for all DSM-IV-TR disorders mentioned in the table.