It is important to begin intervention as early as possible so that incorrect speech patterns do not become ingrained. In addition, it is important to make certain that other learning complications do not develop as a result of SLI.
The research conducted by Rice, Wexler, & Cleave (1995) helped to draw attention to SLI as being different from other language deficiencies. Their work helped to identify and define SLI as its own subset of language delay symptoms. This important step led the way for research that explored causality and intervention. SLI is typically associated with deficiencies in verbal skills. However, research into non-verbal skills was also suggested by these and other study results. This avenue will help to further define and distinguish SLI from other language...
& James, C. et al. (2000). Grammatical SLI: a distinct subtype of developmental language impairment? Applied Psycholinguistics. 21-92): 159-181.
O'Brien, E., Zhang, X., & Nishimura, C. et al. (2003). Association of specific language impairment (SLI) to the region of 7q31. American Journal of Human Genetics. 72 (6): 1536-1543.
Rice, M., Wexler, K., & Cleave, P. (1995). Specific Language Impairment as a Period of Extended Optional Infinitive. Journal of Speech and Hearing Research. 38: 850-863.
Sajanrimi, N., Suhonen, E., & Kontu, E. (2008). Verbal and non-verbal development in SLI children after early intervention. Early Child Development and Care. 02 May 2008. Abstract.
