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Specific language impairment: a review

Authors

  • Douglas B. Petersen Division of Communications Disorders, College of Health Sciences, University of Wyoming
  • Catherine M. Gardner Behavioral Consultation Services of Northern Arizona

Abstract

The Specific Language Impairment (SLI) is one of the most common childhood disorders, affecting an estimated 7% of children in the United States of America. Although SLI is a prevalent disorders, it is not well understood, and a number of theories associated with the explanation of specific language impairment have been presented.  The purpose if this review is to present an overview of theories of specific language impairment and critically discuss the research supporting those theories. It may be that the most parsimonious account for SLI is that there are different subgroups of SLI and that there is a direct correlation between the specific neural damage and the corresponding subgroup. A broad definition of SLI with accompanying sub-categories remains to be empirically verified.  Nonetheless, research is progressing in that direction.  It is clear that additional research is needed to suport of refute the varying theories of SLI.

Keywords:

specific language impairment, theorethical approaches of SLI

Author Biography

Douglas B. Petersen, Division of Communications Disorders, College of Health Sciences, University of Wyoming

PhD CCC-SLP